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

    <schemaVersion>X0206</schemaVersion>

    <documentType>3/A</documentType>

    <periodOfReport>2019-01-31</periodOfReport>

    <dateOfOriginalSubmission>2019-01-31</dateOfOriginalSubmission>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001752474</issuerCik>
        <issuerName>Pivotal Acquisition Corp</issuerName>
        <issuerTradingSymbol>PVT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001763970</rptOwnerCik>
            <rptOwnerName>Pivotal Spac Funding LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PIVOTAL ACQUISITION CORP., C/O GRAUB</rptOwnerStreet1>
            <rptOwnerStreet2>ARD MILLER, 405 LEXINGTON AVE, 11TH FL</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10174</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001008382</rptOwnerCik>
            <rptOwnerName>LEDECKY JONATHAN J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PIVOTAL ACQUISITION CORP., C/O GRAUB</rptOwnerStreet1>
            <rptOwnerStreet2>ARD MILLER, 405 LEXINGTON AVE, 11TH FL</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10174</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001766124</rptOwnerCik>
            <rptOwnerName>Griffin Kevin</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PIVOTAL ACQUISITION CORP., C/O GRAUB</rptOwnerStreet1>
            <rptOwnerStreet2>ARD MILLER, 405 LEXINGTON AVE, 11TH FL</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10174</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Warrants</value>
                <footnoteId id="F1"/>
                <footnoteId id="F6"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F4"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>6350000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Pivotal Acquisition Holdings LLC</value>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Represents warrants which, prior to the effective date of the registration statement relating to the Issuer's initial public offering, the reporting person irrevocably committed to purchase. The purchase of these warrants is being made on a private placement basis and will be consummated simultaneously with the consummation of the Issuer's initial public offering.</footnote>
        <footnote id="F2">The warrants will become exercisable on the later of 30 days after the completion of the Issuer's initial business combination or 12 months from the closing of the Issuer's initial public offering.</footnote>
        <footnote id="F3">The warrants will expire five years after the completion of the Issuer's initial business combination.</footnote>
        <footnote id="F4">Each warrant entitles the holder to purchase one share of the Issuer's Class A Common Stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising transactions.</footnote>
        <footnote id="F5">These shares are owned directly by Pivotal Acquisition Holdings LLC, a ten percent owner of the issuer, and indirectly by its managing members, Jonathan Ledecky and Pivotal Spac Funding LLC. Pivotal Spac Funding LLC is an affiliate of MGG Investment Group, LP, whose Chief Executive Officer is Kevin Griffin, a director of the Issuer. Each of Mr. Ledecky, Pivotal Spac Funding LLC, MGG Investment Group, LP, and Mr. Griffin disclaim beneficial ownership of the securities held by Pivotal Acquisition Holdings LLC, except to the extent of his or its pecuniary interest therein.</footnote>
        <footnote id="F6">This Form 3/A is being filed to correct the number of shares as reported in the Form 3 filed on January 31, 2019.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jonathan Ledecky as managing member of Pivotal Acquisition Holdings LLC</signatureName>
        <signatureDate>2019-02-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Jonathan Ledecky</signatureName>
        <signatureDate>2019-02-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Kevin Griffin</signatureName>
        <signatureDate>2019-02-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
