-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 TdnSoS49kjBmKbbPT/SHSYMz00KXLegXQ/c1m6pQgI4M3Rlefp8XYG5pTdL9S/+G
 H6vt5IkpDLj4cOT0yo1o6A==

<SEC-DOCUMENT>0001391609-10-000161.txt : 20100716
<SEC-HEADER>0001391609-10-000161.hdr.sgml : 20100716
<ACCEPTANCE-DATETIME>20100716164442
ACCESSION NUMBER:		0001391609-10-000161
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100716
FILED AS OF DATE:		20100716
DATE AS OF CHANGE:		20100716

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Knab John M
		CENTRAL INDEX KEY:			0001421213

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-11730
		FILM NUMBER:		10956824

	MAIL ADDRESS:	
		STREET 1:		10757 SOUTH RIVER FRONT PARKWAY
		STREET 2:		SUITE 125
		CITY:			SOUTH JORDAN
		STATE:			UT
		ZIP:			84095

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BAYHILL CAPITAL CORP
		CENTRAL INDEX KEY:			0000726293
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE COMMUNICATIONS (NO RADIO TELEPHONE) [4813]
		IRS NUMBER:				841089377
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0305

	BUSINESS ADDRESS:	
		STREET 1:		10757 S. RIVERFRONT PARKWAY
		STREET 2:		SUITE 125
		CITY:			SOUTH JORDAN
		STATE:			UT
		ZIP:			84095
		BUSINESS PHONE:		801-705-5128

	MAIL ADDRESS:	
		STREET 1:		10757 S. RIVERFRONT PARKWAY
		STREET 2:		SUITE 125
		CITY:			SOUTH JORDAN
		STATE:			UT
		ZIP:			84095

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COGNIGEN NETWORKS INC
		DATE OF NAME CHANGE:	20000718

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SILVERTHORNE PRODUCTION CO
		DATE OF NAME CHANGE:	19940422

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CELLULAR RADIO SYSTEMS INC
		DATE OF NAME CHANGE:	19880713
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-07-16</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000726293</issuerCik>
        <issuerName>BAYHILL CAPITAL CORP</issuerName>
        <issuerTradingSymbol>BYHL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001421213</rptOwnerCik>
            <rptOwnerName>Knab John M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>10757 SOUTH RIVER FRONT PARKWAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 125</rptOwnerStreet2>
            <rptOwnerCity>SOUTH JORDAN</rptOwnerCity>
            <rptOwnerState>UT</rptOwnerState>
            <rptOwnerZipCode>84095</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-07-16</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>42593</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.27</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>114760</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <remarks>The reporting person acquired these shares in lieu of compensation of Board fees as approved by the Board of Directors.</remarks>

    <ownerSignature>
        <signatureName>Robert Bench</signatureName>
        <signatureDate>2010-07-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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