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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-11-15</periodOfReport>

    <issuer>
        <issuerCik>0000837465</issuerCik>
        <issuerName>CALLAWAY GOLF CO</issuerName>
        <issuerTradingSymbol>ELY</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001849588</rptOwnerCik>
            <rptOwnerName>PEP TG Investments LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PROVIDENCE EQUITY PARTNERS L.L.C.</rptOwnerStreet1>
            <rptOwnerStreet2>50 KENNEDY PLAZA, 18TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>PROVIDENCE</rptOwnerCity>
            <rptOwnerState>RI</rptOwnerState>
            <rptOwnerZipCode>02903</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001849690</rptOwnerCik>
            <rptOwnerName>PEP TG Investments GP LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PROVIDENCE EQUITY PARTNERS L.L.C.</rptOwnerStreet1>
            <rptOwnerStreet2>50 KENNEDY PLAZA, 18TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>PROVIDENCE</rptOwnerCity>
            <rptOwnerState>RI</rptOwnerState>
            <rptOwnerZipCode>02903</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001320307</rptOwnerCik>
            <rptOwnerName>Dominguez Michael J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PROVIDENCE EQUITY PARTNERS L.L.C.</rptOwnerStreet1>
            <rptOwnerStreet2>50 KENNEDY PLAZA, 18TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>PROVIDENCE</rptOwnerCity>
            <rptOwnerState>RI</rptOwnerState>
            <rptOwnerZipCode>02903</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock, par value $0.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2021-11-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>3000000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>28.81</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>21175226</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents shares of common stock (&quot;Common Stock&quot;) of Callaway Golf Company (the &quot;Issuer&quot;) sold in a Rule 144 sale by PEP TG Investments LP at a price of $28.81 per share.</footnote>
        <footnote id="F2">This statement is being filed by the following Reporting Persons: PEP TG Investments LP, PEP TG Investments GP LLC and Michael Dominguez and represents shares of Common Stock directly held by PEP TG Investments LP.</footnote>
        <footnote id="F3">PEP TG Investments GP LLC is the sole general partner of PEP TG Investments LP. By virtue of such relationship, PEP TG Investments GP LLC has shared voting and investment control with respect to the securities held directly by PEP TG Investments LP, and may be deemed to indirectly beneficially own the securities directly held by PEP TG Investments LP.</footnote>
        <footnote id="F4">Michael Dominguez is the sole member of PEP TG Investments GP LLC. By virtue of such relationship, Michael Dominguez has shared voting and investment control with respect to the securities held directly by PEP TG Investments GP LLC, and may be deemed to indirectly beneficially own the securities directly held by PEP TG Investments LP.</footnote>
        <footnote id="F5">This report shall not be deemed an admission that PEP TG Investments GP LLC or Michael Dominguez is a beneficial owner of the securities held by PEP TG Investments LP, in each case for the purpose of Section 16 of the Exchange Act, or for any other purpose, except to the extent of their pecuniary interest therein, if any. Each of PEP TG Investments GP LLC and Michael Dominguez disclaims any beneficial ownership with respect to such securities, except to the extent of its respective pecuniary interest therein, if any.</footnote>
    </footnotes>

    <remarks>Exhibit 99.1 (Signatures and Joint Filer Information) is incorporated herein by reference.</remarks>

    <ownerSignature>
        <signatureName>PEP TG INVESTMENTS LP, by: PEP TG Investments GP LLC, by: Michael Dominguez
/s/ Michael Dominguez</signatureName>
        <signatureDate>2021-11-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
