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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-03-09</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001770561</issuerCik>
        <issuerName>Coronado Global Resources Inc.</issuerName>
        <issuerTradingSymbol>ASX:CRN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001472301</rptOwnerCik>
            <rptOwnerName>Rose Richard D.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CORONADO GLOBAL RESOURCES INC.</rptOwnerStreet1>
            <rptOwnerStreet2>100 BILL BAKER WAY</rptOwnerStreet2>
            <rptOwnerCity>BECKLEY</rptOwnerCity>
            <rptOwnerState>WV</rptOwnerState>
            <rptOwnerZipCode>25801</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP, CLO &amp; Secretary</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2020-03-09</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>10.08</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2000</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Reflects an open market purchase of 20,000 of the Issuer's Chess Depositary Interests (&quot;CDIs&quot;). CDIs are units of beneficial ownership in shares of common stock of the Issuer that are publicly traded on the Australian Securities Exchange (the &quot;ASX&quot;) and held by CHESS Depositary Nominees Pty, Limited, a subsidiary of ASX Limited, the company that operates the ASX. The CDIs are convertible into shares of common stock of the Issuer on a 10-for-1 basis.</footnote>
        <footnote id="F2">The purchase was executed in the form of CDIs, trading on the ASX, and as such the purchase price has been converted to a U.S. Dollar equivalent, adjusting for the conversion ratio of 1 share of common stock per 10 CDIs.</footnote>
        <footnote id="F3">Held jointly with Reporting Person's spouse.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Richard Rose</signatureName>
        <signatureDate>2020-03-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
