-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 ESKsFpnhm76dCN/O3bYSckOpV+OZd8fjCM2gizGt5kTcGHe4Pg9LC/i/3O0ZpisU
 FeNtYB12iyX5AJFH1Sdykg==

<SEC-DOCUMENT>0001225208-10-018910.txt : 20100810
<SEC-HEADER>0001225208-10-018910.hdr.sgml : 20100810
<ACCEPTANCE-DATETIME>20100810143044
ACCESSION NUMBER:		0001225208-10-018910
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100806
FILED AS OF DATE:		20100810
DATE AS OF CHANGE:		20100810

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WESTERN OPPORTUNITY LTD PARTNERSHIP
		CENTRAL INDEX KEY:			0001168929
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-02384
		FILM NUMBER:		101004632

	BUSINESS ADDRESS:	
		STREET 1:		100 WEST LIBERTY STREET
		CITY:			RENO
		STATE:			NV
		ZIP:			89501

	MAIL ADDRESS:	
		STREET 1:		100 WEST LIBERTY STREET
		CITY:			RENO
		STATE:			NV
		ZIP:			89501

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INTERNATIONAL SPEEDWAY CORP
		CENTRAL INDEX KEY:			0000051548
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-RACING, INCLUDING TRACK OPERATION [7948]
		IRS NUMBER:				590709342
		STATE OF INCORPORATION:			FL
		FISCAL YEAR END:			1130

	BUSINESS ADDRESS:	
		STREET 1:		1801 W INTL SPEEDWAY BLVD
		CITY:			DAYTONA BEACH
		STATE:			FL
		ZIP:			32114-1243
		BUSINESS PHONE:		(386) 254-2700

	MAIL ADDRESS:	
		STREET 1:		1801 W INTL SPEEDWAY BLVD
		CITY:			DAYTONA BEACH
		STATE:			FL
		ZIP:			32114-1243

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DAYTONA INTERNATIONAL SPEEDWAY CORP
		DATE OF NAME CHANGE:	19691130

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FRANCE BILL RACING INC
		DATE OF NAME CHANGE:	19670227
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-08-06</periodOfReport>

    <issuer>
        <issuerCik>0000051548</issuerCik>
        <issuerName>INTERNATIONAL SPEEDWAY CORP</issuerName>
        <issuerTradingSymbol>ISCA, ISCB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001168929</rptOwnerCik>
            <rptOwnerName>WESTERN OPPORTUNITY LTD PARTNERSHIP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1201 SOUTH ORLANDO AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 370</rptOwnerStreet2>
            <rptOwnerCity>WINTER PARK</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>32789</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Group Member</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-08-06</value>
                <footnoteId id="F1"/>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>241</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>26.05</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10118155</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Remainder of France Family Group</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8042465</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>92494</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Remainder of France Family Group</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Options to Acquire ISCA</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>57.01</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2006-07-01</value>
            </exerciseDate>
            <expirationDate>
                <value>2015-07-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>758</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>758</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Remainder of France Family Group</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Options to Acquire ISCA</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>46.37</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2007-07-01</value>
            </exerciseDate>
            <expirationDate>
                <value>2016-07-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>926</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>926</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Remainder of France Family Group</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Options to Acquire ISCA</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>52.71</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2008-07-01</value>
            </exerciseDate>
            <expirationDate>
                <value>2017-07-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2413</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2413</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Remainder of France Family Group</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Options to Acquire ISCA</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>39.03</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2009-07-01</value>
            </exerciseDate>
            <expirationDate>
                <value>2018-07-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2387</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2387</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Remainder of France Family Group</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Options to Acquire ISCA</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>25.62</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2010-07-01</value>
            </exerciseDate>
            <expirationDate>
                <value>2019-07-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4785</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4785</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Remainder of France Family Group</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Options to Acquire ISCA</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>25.68</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2011-07-01</value>
            </exerciseDate>
            <expirationDate>
                <value>2020-07-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>3757</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3757</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Remainder of France Family Group</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The indirect transactions reported on this form represent  direct transactions by another member of the France Family Group and are also reported as indirect transactions by all other members of the France Family Group not directly engaged in the transactions.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>W. Garrett Crotty as attorney in fact for Western Opportunity Limited Partnership</signatureName>
        <signatureDate>2010-08-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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