-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 bZ2V+Y2KaO3/fpYz7tzEYA==

<SEC-DOCUMENT>0001339618-08-000013.txt : 20080516
<SEC-HEADER>0001339618-08-000013.hdr.sgml : 20080516
<ACCEPTANCE-DATETIME>20080516163151
ACCESSION NUMBER:		0001339618-08-000013
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080306
FILED AS OF DATE:		20080516
DATE AS OF CHANGE:		20080516

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PROCENTURY CORP
		CENTRAL INDEX KEY:			0001273397
		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
		IRS NUMBER:				311718622

	BUSINESS ADDRESS:	
		STREET 1:		465 CLEVELAND AVENUE
		CITY:			WESTERVILLE
		STATE:			OH
		ZIP:			43082
		BUSINESS PHONE:		6148952000

	MAIL ADDRESS:	
		STREET 1:		465 CLEVELAND AVENUE
		CITY:			WESTERVILLE
		STATE:			OH
		ZIP:			43082

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			West Erin E
		CENTRAL INDEX KEY:			0001339482

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50641
		FILM NUMBER:		08842714

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		614-895-2000

	MAIL ADDRESS:	
		STREET 1:		C/O PROCENTURY CORPORATION
		STREET 2:		465 CLEVELAND AVENUE
		CITY:			WESTERVILLE
		STATE:			OH
		ZIP:			43082
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2008-03-06</periodOfReport>

    <dateOfOriginalSubmission>2008-03-10</dateOfOriginalSubmission>

    <issuer>
        <issuerCik>0001273397</issuerCik>
        <issuerName>PROCENTURY CORP</issuerName>
        <issuerTradingSymbol>PROS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001339482</rptOwnerCik>
            <rptOwnerName>West Erin E</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PROCENTURY CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>465 CLEVELAND AVENUE</rptOwnerStreet2>
            <rptOwnerCity>WESTERVILLE</rptOwnerCity>
            <rptOwnerState>OH</rptOwnerState>
            <rptOwnerZipCode>43082</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CFO and Treasurer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2008-03-06</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1966</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20199</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Due to administrative error, the reporting person mistakenly filed a Form 4 reporting the acquisition of 1996 common shares when in fact the reporting person acquired 1966 common shares as reflected on this amendment.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Suzanne K. Hanselman, by power of attorney</signatureName>
        <signatureDate>2008-05-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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