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San Antonio, TX (Sports Network) - Matt Bettencourt and Peter Tomasulo both fired a 5-under 67 on Thursday to share the lead following the first round at the Valero Texas Open.

Tomasulo held the outright lead for the majority of the afternoon, but Tomasulo birdied his final two holes with the last group of players at TPC San Antonio to join him atop the leaderboard.

Billy Horschel, Bryce Molder, Padraig Harrington and Harris English all sit in third place at 4-under, while 16-time PGA champion Jim Furyk is among 10 players tied for seventh at minus-3.

MORE TO FOLLOW.