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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001305433-05-000017.txt : 20051004
<SEC-HEADER>0001305433-05-000017.hdr.sgml : 20051004
<ACCEPTANCE-DATETIME>20051004114228
ACCESSION NUMBER:		0001305433-05-000017
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050930
FILED AS OF DATE:		20051004
DATE AS OF CHANGE:		20051004

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DIVERSIFIED FUTURES TRUST I
		CENTRAL INDEX KEY:			0000926805
		STANDARD INDUSTRIAL CLASSIFICATION:	 [6221]
		IRS NUMBER:				133780260
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		C/O PREFERRED INVESTMENT SOLUTIONS CORP.
		STREET 2:		51 WEAVER ST., BLDG ONE SOUTH, 2ND FL.
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06831
		BUSINESS PHONE:		203-861-1000

	MAIL ADDRESS:	
		STREET 1:		C/O PREFERRED INVESTMENT SOLUTIONS CORP.
		STREET 2:		51 WEAVER ST., BLDG ONE SOUTH, 2ND FL.
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06831

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Shewer Kenneth A
		CENTRAL INDEX KEY:			0001305433

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-26004
		FILM NUMBER:		051120151

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		203-861-1000

	MAIL ADDRESS:	
		STREET 1:		C/O PREFERRED INVESTMENT SOLUTIONS CORP
		STREET 2:		51 WEAVER STREET
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06831
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-09-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000926805</issuerCik>
        <issuerName>DIVERSIFIED FUTURES TRUST I</issuerName>
        <issuerTradingSymbol>none</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001305433</rptOwnerCik>
            <rptOwnerName>Shewer Kenneth A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PREFERRED INVESTMENT SOLUTIONS CORP</rptOwnerStreet1>
            <rptOwnerStreet2>51 WEAVER STREET</rptOwnerStreet2>
            <rptOwnerCity>GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06831</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Director &amp; Chairman</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Units of beneficial ownership</value>
            </securityTitle>
            <transactionDate>
                <value>2005-09-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>75</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>228</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>795</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By PISC</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The price indicated is only an estimate.  The actual price will be based upon NAV per unit, which is not available until 15 business days following the end of September 2005.</footnote>
        <footnote id="F2">These units of beneficial ownership are held through Preferred Investment Solutions Corp. (&quot;PISC&quot;).  In accordance with Instruction 4 (b)(iv) of Form 4, the Reporting Person is reporting the entire amount of such holdings but disclaims beneficial ownership over such securities for the purposes of Section 16 of the Exchange Act, except to the extent of his indirect pecuniary interest therein</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Kenneth A. Shewer</signatureName>
        <signatureDate>2005-10-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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