EXHIBIT 10.21.1

Old Dominion Freight Line, Inc.

Performance Incentive Plan

(As Amended and Restated Through January 30, 2019)

1. Purpose

The purpose of the Old Dominion Freight Line, Inc. Performance Incentive Plan, as it may be amended and/or restated (the “PIP”), is to provide selected employees of Old Dominion Freight Line, Inc. or an affiliate thereof (collectively, the “Company”, unless the context otherwise requires) with awards (“awards”) in the form of cash bonuses based upon attainment of pre-established, objective performance goals, thereby promoting a closer identification of the participating employees’ interests with the interests of the Company and its shareholders, and further stimulating such employees’ efforts to enhance the efficiency, profitability, growth and value of the Company.

2. Plan Administration

The PIP shall be administered by the Compensation Committee (the “Committee”) of the Board of Directors (the “Board”) of the Company or a subcommittee of the Committee.  To the extent required by The Nasdaq Stock Market LLC (“Nasdaq”), the Committee shall be comprised of at least two members who meet Nasdaq’s director independence requirements.  In addition to action by meeting in accordance with applicable laws, rules or regulations (or similar guidance), including but not limited to the listing or other rules of any applicable stock exchange (collectively, “Applicable Law”), any action of the Committee with respect to the PIP may be taken by a written instrument signed by all of the members of the Committee, and any such action so taken by written consent shall be as fully effective as if it had been taken by a majority of the members at a meeting duly held and called.  Subject to the terms of the PIP, the Committee shall have full authority in its discretion to take any action with respect to administration of the PIP.  Without limiting the foregoing, the Committee has full authority in its discretion to take any action with respect to the PIP including but not limited to the authority to (i) determine all matters relating to awards, including selection of individuals to be granted awards and all other terms, conditions, restrictions and limitations of an award; and (ii) construe and interpret the PIP and any related documents, to establish and interpret rules and regulations for plan administration and to make all other determinations deemed necessary or advisable for administering the PIP.

The Committee’s authority to grant awards and authorize payments under the PIP shall not restrict the authority of the Committee to grant compensation to employees under any other compensation plan or program of the Company.  Any decision made, or action taken, by the Committee in connection with the administration of the PIP shall be final, binding and conclusive.  Notwithstanding the foregoing, the Committee may delegate the administration of the PIP to one or more of its designees, including specified officers of the Company, provided that such delegation is in accordance with Applicable Law.  In the case of any such delegation, references to the “Committee” herein shall include such designee or designees, unless the context

otherwise requires.  No member of the Board or the Committee shall be liable for any action, determination or decision made in good faith with respect to the PIP or any award paid under it.  In addition to such other rights of indemnification and reimbursement as members of the Board and the Committee may have under the Company’s articles of incorporation, bylaws and/or other instrument and/or pursuant to Applicable Law, such individuals shall be indemnified by the Company against all reasonable expenses, including attorneys’ fees, incurred in connection with the defense of any action, suit or proceeding, or in connection with any appeal thereof, to which any such individual may be a party by reason of any action taken or failure to act under or in connection with the PIP or any award granted hereunder and against all amounts paid by such individual in a settlement thereof that is approved by the Company’s legal counsel or paid in satisfaction of a judgment in any such action, suit or proceeding, except in relation to matters as to which it shall be formally determined that such person is liable for gross negligence, bad faith or intentional misconduct; provided, however, that any such individual shall give the Company an opportunity, at its own expense, to defend the same before such individual undertakes to defend such action, suit or proceeding.

3. Eligibility

The Participants in the PIP (individually, a “participant,” and collectively, the “participants”) shall be those employees of the Company who are designated from time to time as participants by the Committee.  Eligible participants shall be selected to participate on an annual or other periodic basis as determined by the Committee.  Participation in the PIP for any one performance period does not guarantee that an employee will be selected to participate in any other performance period.  (For the purposes of the PIP, “performance period” shall mean a period established by the Committee during which performance shall be measured to determine if any payment will be made under the PIP.  A performance period may be coincident with one or more months of a fiscal year of the Company.)

Non-employee service providers and non-employee directors are not eligible to participate.

4. Nature of Awards

Awards granted under the PIP shall be in the form of cash bonuses.

5. Awards

(a)Grant of Awards:  At the time performance objectives are established for a performance period or performance periods as provided in Section 5(b) herein, the Committee also shall assign to each participant a participation factor applicable for the particular performance period.  A participant’s award, if any, shall be earned based on the attainment of performance objectives approved by the Committee for a specified performance period, as provided in Section 5(b) herein.  During any performance period, no participant may have a maximum participation factor or other award amount in excess of the limitations provided under Section 5(d) herein, nor shall the total award payable to all participants exceed the maximum amount payable as stated in Section 5(d) herein.  The Committee may adjust awards as appropriate for partial achievement of goals, exemplary effort on the part of a participant and/or

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such other circumstances as may be determined by the Committee and may also make necessary and appropriate adjustments in performance goals.

(b)Performance Objectives:  For each performance period, the Committee shall establish one or more objective performance measures and specific goals for each participant and/or for each group of participants.  The performance objectives established by the Committee shall be objective and based on the Company’s income before tax and the effects, if any, of a change in accounting principle, extraordinary items or discontinued operations (“IBT”).  In addition, the performance objectives may be calculated without regard to extraordinary items.

(c)Earning of Awards:  As soon as practicable after the end of the performance period, the Committee shall determine whether the performance goals for the performance period were achieved and, if so, the Committee shall determine the amount, if any, of the award earned by each participant and such award shall be paid in accordance with Section 5(e) herein (subject, however, to the limitations on awards stated in Section 5(d) herein).

(d)Maximum Award Payable to Participants:  Other provisions of the PIP notwithstanding, (i) the maximum amount of the participation factor to determine cash awards that may be granted under the PIP to any one participant in any one performance period shall not exceed 1.5% of IBT for such period, provided that (ii) the Committee may in its discretion from time to time establish additional participant award limitation(s) based on a multiple(s) of base salary or other factor(s) with respect to all or certain group(s) of participants, but in no event shall amounts payable based on a base salary multiple or other participant award limitation described in Section 5(d)(ii) herein exceed the 1.5% IBT participant award limitation described in Section 5(d)(i) herein.  In addition, the maximum amount of cash awards that may be granted under the PIP to all participants in the aggregate for a performance period shall not exceed 15% of IBT for such period.

(e)Payment of Awards:  An award earned by a participant with respect to a performance period shall be paid to such participant or credited to the participant’s account as soon as practicable following the performance period and determination of the amount of the award.  In any event, amounts payable under the PIP will be paid no later than (i) the date that is 2-1/2 months after the end of the participant’s first taxable year in which the amount ceases to be subject to a substantial risk of forfeiture, or (ii) the date that is 2-1/2 months after the end of the Company’s first taxable year in which the amount is no longer subject to a substantial risk of forfeiture, or shall otherwise be structured in a manner to be exempt from, or in compliance with, Section 409A of the Internal Revenue Code of 1986, as amended (the “Code”).  The Committee shall have the authority to make adjustments to awards and performance objectives upon the occurrence of certain unusual or nonrecurring events or other similar circumstances.  The Committee shall have the discretion to modify, increase (subject to Section 5(d) herein), reduce or eliminate the amount of an award otherwise earned and payable pursuant to the terms of the PIP to any participant.

6. Termination of Employment and Other Events; Covenants

Unless otherwise determined by the Committee, if a participant dies, retires, is assigned to a different position, is granted a leave of absence, or if the participant’s employment is

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otherwise terminated prior to payment of an award for a performance period, the participant will forfeit the incentive (and subsequent incentives).  However, the Committee has the discretion to determine whether awards will be paid or forfeited by the participant for a completed performance period, or a pro rata share of the participant’s award paid based on the period of actual participation, if the award would have become earned and payable had the participant’s employment status not changed.  The Committee may require a participant, as a condition to the grant or payment of an award, to have entered into agreements or covenants with the Company obligating the participant to not compete, to not interfere with the relationships of the Company with customers, suppliers or employees in any way, to refrain from disclosing or misusing confidential or proprietary information of the Company, and to take or refrain from taking such other actions adverse to the Company as the Committee may specify.  The form of such agreements or covenants shall be specified by the Committee, which may vary such form from time to time and may require renewal of the agreements or covenants, as then specified by the Committee, in connection with the allocation or payout of any award.

7. Change of Control.

(a)Notwithstanding any other provision in the PIP to the contrary, in the event of a change of control, as defined in Section 7(b) herein, awards will continue to be made in accordance with the PIP’s terms unless the employment of the participant or the PIP is terminated.  In addition, in the event that a participant has entered into an employment agreement, change in control agreement or similar agreement with the Company, the provisions of the PIP shall not be construed to reduce in any way the benefits otherwise payable under such separate plan or agreement.

(b)For the purposes herein, for each participant, a “change of control” shall have the definition and will be deemed to have occurred on the earliest of the following dates which occurs after the Effective Date:

(i)the date any person or group of persons (as defined in Section 13(d) and 14(d) of the Securities Exchange Act of 1934) together with its affiliates, is or becomes (or publicly discloses that such person or group is or has become), directly or indirectly, the “beneficial owner” (as defined in Rule 13d-3 promulgated under the Securities Exchange Act of 1934) of securities of the Company representing thirty-five percent (35% ) or more of the combined voting power of the Company’s then outstanding voting securities; provided, however, that the event described in this subparagraph (i) shall not be deemed to be a change of control by virtue of the beneficial ownership, or the acquisition of beneficial ownership, of voting securities by (A) any person directly or indirectly controlled by the Company, including any employee benefit plan sponsored or maintained by the Company or by a person controlled by the Company; (B) any underwriter (as such term is defined in Section 2(a)(11) of the Securities Act of 1933) that beneficially owns voting securities temporarily in connection with an offering of such securities; or (C) any member of the family of Earl E. Congdon or John R. Congdon unless David S. Congdon, acting in good faith, provides written notice to the Company that David S. Congdon believes, and within twenty (20) business days after the Company’s receipt of David S. Congdon’s notice a majority of the independent members of the Board determines, that the beneficial ownership of voting securities by such family

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member creates a substantial threat to corporate policy and effectiveness.  For the purposes of this clause (C) above, “family” means any lineal descendent, including adoptive relationships, of Earl E. Congdon or John R. Congdon, any spouse of the foregoing and any trust established by or for the benefit of any of the foregoing, and “independent” shall have the meaning set forth in the corporate governance rules of the principal exchange on which the Company’s common stock is listed; or

(ii)the date there shall have been a change in a majority of the Board within a twelve (12)-month period unless the nomination for election by the Company’s shareholders of each new director was approved by the vote of two-thirds (2/3) or more of the members of the Board (or a committee of the Board, if nominations are approved by a Board committee rather than the Board) then still in office who were in office at the beginning of the twelve (12)-month period; or

(iii)the date of the consummation of a merger, share exchange or consolidation with any other corporation or entity regardless of which entity is the survivor, other than a merger, share exchange or consolidation which would result in the voting securities of the Company outstanding immediately prior thereto continuing to represent (either by remaining outstanding or being converted into voting securities of the surviving or acquiring entity) at least sixty percent (60%) of the combined voting power of the voting securities of the Company or such surviving or acquiring entity outstanding immediately after such merger, share exchange or consolidation; or

(iv)the effective date of the sale or disposition by the Company of all or substantially all of the Company’s assets.

8. No Right to Employment

Nothing contained in this PIP nor any action taken pursuant to the PIP shall be construed as conferring upon any participant the right or imposing upon him the obligation to continue in the employment of or service to the Company, nor shall it be construed as imposing upon the Company the obligation to continue the employment or service of a participant.  Except as may be otherwise provided in the PIP or determined by the Committee, all rights of a participant with respect to an award and distribution of any cash payment subject to an award shall terminate and be forfeited upon a participant’s termination of employment or service with the Company.

9. Amendments

The Board may amend, discontinue or terminate the PIP in whole or in part at any time, subject to (a) shareholder approval of any amendments to the PIP if required by Applicable Law; and (b) participant consent if such action would materially adversely affect any award earned and payable under the PIP at that time.  However, notwithstanding the foregoing, the Board shall have unilateral authority to amend the PIP and any award (without participant consent) to the extent necessary to comply with Applicable Law or changes to Applicable Law (including but in no way limited to Code Section 409A, related regulations and other guidance).

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10. Effective Date

The PIP became effective on January 1, 2009 (the “Effective Date”), following approval by the shareholders of the Company.  The PIP was amended and restated effective January 30, 2019, and shall continue until such time that it is terminated or suspended by the Board.

11. Miscellaneous

(a)Offset and Recoupment:  The Committee shall have authority (subject to any Code Section 409A considerations) to reduce the amount of any payment otherwise payable to a participant under the PIP by the amount of any obligation of the participant to the Company that is or becomes due and payable and any compensation payable to a participant under the PIP will be subject to any recoupment, “clawback” or similar Company policy or arrangement, and, by becoming a participant in the PIP, each participant will be deemed to have consented to such offset and recoupment restrictions.

(b)Withholding:  Any tax or other amount required to be withheld by any government authority shall be deducted from each award.

(c)Nonassignability:  Unless the Committee determines otherwise, awards and any other rights under the PIP shall not be transferred, pledged or assigned, except by designation of a beneficiary or by will or the laws of intestate succession.

(d)No Trust; Unfunded Plan:  The obligation of the Company to make payments hereunder shall constitute a liability of the Company to the participants.  Such payments shall be made from the general funds of the Company, and the Company shall not be required to establish or maintain any special or separate fund, or otherwise to segregate assets to assure that such payments shall be made, and neither the participants nor their beneficiaries shall have any interest in any particular assets of the Company by reason of its obligations hereunder.  Nothing contained in the PIP shall create or be construed as creating a trust of any kind or any other fiduciary relationship between the Company and the participants or any other person or constitute a guarantee that the assets of the Company shall be sufficient to pay any benefits to any person.  To the extent that any person acquires a right to receive payments from the Company hereunder, such right shall be no greater than the right of an unsecured creditor of the Company.

(e)Impact of Plan Award on other Plans:  Awards granted pursuant to the PIP shall not be treated as compensation for purposes of any other compensation or benefit plan, program or arrangement of the Company, unless (i) such other plan, program or arrangement provides that compensation in the form of awards payable under the PIP are to be considered as compensation thereunder, or (ii) the Committee so determines.  The adoption of the PIP shall not affect any other incentive or other compensation plans or programs in effect for the Company, nor shall the PIP preclude the Company from establishing any other forms of incentive or other compensation for employees of the Company.

(f)Facility of Payments:  If a participant or any other person entitled to receive an award under this PIP (the “recipient”) shall, at the time payment of any such amount is due, be incapacitated so that such recipient cannot legally receive or acknowledge receipt of the

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payment, then the Committee, in its sole and absolute discretion, may direct that the payment be made to the legal guardian, attorney-in-fact or person with whom such recipient is residing, and such payment shall be in full satisfaction of the Company’s obligation under the PIP with respect to such amount.

(g)Governing Law and Venue:  The PIP shall be construed and its provisions enforced and administered in accordance with the laws of the State of North Carolina, without regard to the principles of conflicts of laws, and in accordance with applicable federal laws. In any action, special proceeding or other proceeding that may be brought arising out of, in connection with, or by reason of the PIP, the laws of the State of North Carolina shall be applicable and shall govern to the exclusion of the law of any other forum. Any action, special proceeding or other proceeding with respect to the PIP shall be brought exclusively in the federal district court for the Middle District of North Carolina or state court located in Guilford County, North Carolina.  By participating in the PIP, each participant shall be deemed to have (i) irrevocably consented to the exclusive jurisdiction of those courts, (ii) submitted to personal jurisdiction in the State of North Carolina, (iii) irrevocably waived any objection, including any objection based on lack of jurisdiction, improper venue or forum non conveniens, which the participant may now or hereafter have to the bringing of any action or proceeding in such jurisdiction in respect to the PIP or any transaction related hereto and (iv) acknowledged and agreed that any service of legal process by mail in the manner provided for notices under the PIP constitutes proper legal service of process under applicable law in any action or proceeding under or in respect to the PIP.

(h)Adjustments:  The Committee is authorized at any time before, during or after the completion of a performance period, in its sole discretion, to adjust or modify the terms of awards or performance objectives, or specify new awards, (i) in the event of any large, special and non-recurring dividend or distribution, recapitalization, reorganization, merger, consolidation, spin-off, combination, repurchase, share exchange, forward or reverse split, stock dividend, liquidation, dissolution or other similar corporate transaction, (ii) in recognition of any other unusual or nonrecurring event affecting the Company or the financial statements of the Company (including events described in (i) above as well as acquisitions and dispositions of businesses and assets and extraordinary items determined under generally accepted accounting principles), or (iii) in response to changes in Applicable Law, accounting principles, and tax rates (and interpretations thereof) or changes in business conditions or the Committee’s assessment of the business strategy of the Company.  

(i)Compliance with Code Section 409A:  To the extent possible, awards granted under the PIP are designed to be exempt from (or comply with) Code Section 409A.  The PIP shall at all times be construed in a manner designed to comply with, or be exempt from, Code Section 409A and should any provision be found not in compliance with or exempt from Code Section 409A, the PIP and/or awards shall, to the extent practicable, be amended as recommended by legal counsel to achieve compliance with, or an exemption from, Code Section 409A.  Without in any way limiting the effect of the foregoing, (i) in the event that exemption from or compliance with Code Section 409A requires that any special terms, provisions or conditions be included in the PIP or any award, then such terms, provisions and conditions shall, to the extent practicable, to be deemed to be made a part of the PIP or award, as applicable; and (ii) terms used in the PIP or an award shall be construed in accordance with Code Section 409A

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if and to the extent required.  In the event the participant is a “specified employee” (as determined in accordance with Company procedures and Code Section 409A requirements), then, to the extent required under Code Section 409A, a distribution due to separation from service may not be made before the date that is six months after the participant’s separation from service (or, if earlier, the date of the participant’s death).  Furthermore, in such event, the first six months of any such payments of deferred compensation that are required to be paid in installments shall be paid at the beginning of the seventh month following the participant’s separation from service, and all remaining installment payments shall be made as would ordinarily have been made under the provisions of the PIP or other applicable plan.  For purposes of the limitations on nonqualified deferred compensation under Code Section 409A, each payment of compensation under the PIP shall be treated as a separate payment of compensation for purposes of applying Code Section 409A. The Committee has no responsibility to take, or to refrain from taking, any actions in order to achieve a certain tax result for any participant.  Further, in the event that the PIP or any award shall be deemed not to comply with (or be exempt from) Code Section 409A, then neither the Company, the Board, the Committee nor its or their designees or agents shall be liable to any participant or other persons for actions, decisions or determinations made in good faith.

(j)Restrictions on Awards:  Notwithstanding any other PIP provision to the contrary, the Company shall not be obligated to make any distribution of benefits under the PIP or take any other action, unless such distribution or action is in compliance with Applicable Law (including but not limited to applicable requirements of the Code).

(k)Gender and Number:  Where the context admits, words in any gender shall include any other gender, words in the singular shall include the plural and words in the plural shall include the singular.

(l)Severability:  If any provision of the PIP shall be held illegal or invalid for any reason, such illegality or invalidity shall not affect the remaining parts of the PIP, and the PIP shall be construed and enforced as if the illegal or invalid provision had not been included.

(m)Binding Effect:  The PIP shall be binding upon the Company, its successors and assigns, and participants, their legal representatives, executors, administrators and beneficiaries.

[Signature Page to Follow]

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This Old Dominion Freight Line, Inc. Performance Incentive Plan, as Amended and Restated through January30, 2019, has been executed on behalf of the Company effective as of the 30thday of January, 2019.

OLD DOMINION FREIGHT LINE, INC.

By: /s/ Greg C. Gantt

Name:Greg C. Gantt

Title:President and Chief Executive Officer

Attest:

By: /s/ Ross H. Parr

Name:Ross H. Parr

Title:Senior Vice President – Legal Affairs, General Counsel and Secretary

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