<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2015-10-29</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001179060</issuerCik>
        <issuerName>EnLink Midstream Partners, LP</issuerName>
        <issuerTradingSymbol>ENLK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001209821</rptOwnerCik>
            <rptOwnerName>ENLINK MIDSTREAM, INC.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2501 CEDAR SPRINGS ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 100</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75201</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Units</value>
            </securityTitle>
            <transactionDate>
                <value>2015-10-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2849100</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20280252</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On October 29, 2015, the Issuer entered into and consummated a Common Unit Purchase Agreement with EnLink Midstream, Inc. (&quot;EMI&quot;) pursuant to which the Issuer sold 2,849,100 Common Units of the Issuer to EMI in exchange for $50,000,000 in cash.</footnote>
    </footnotes>

    <remarks>EMI has the right to appoint all of the directors of EnLink Midstream GP, LLC, the general partner of the Issuer and therefore may be deemed a director by deputization.  Additionally, EMI is part of a group that includes EnLink Midstream, LLC, EnLink Midstream Manager, LLC, Devon Energy Corporation (&quot;Devon&quot;) and certain of Devon's wholly-owned subsidiaries that collectively own more than 10% of the outstanding units of the Issuer.  EMI disclaims beneficial ownership of any securities other than those reported above.</remarks>

    <ownerSignature>
        <signatureName>Barry E. Davis</signatureName>
        <signatureDate>2015-11-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
