When Louis Oosthuizen finished his first round, he went into the clubhouse as the sole leader of the 2012 Masters. Oosthuizen's reign alone atop the leaderboard was short lived though, as Lee Westwood's birdie on the 13th hole brought him to -4 for the day, tying him with Oosthuizen.
Oosthuizen's day started off with six consecutive pars, before he bogeyed the seventh hole. Oosthuizen would go onto birdie the eighth, ninth, 12th, 14th, 15th, 17th and 18th holes to finish the day -4. He bogeyed the 11th and 13th holes.
Westwood, meanwhile, birdied the second hole, before bogeying the fourth. Westwood would then rattle off birdies on the fifth through eighth holes before bogeying the tenth.
Seven golfers currently sit at -3, including Americans Ben Crane, Jason Dufner and Bubba Watson. None of those three have finished their round.
Tiger Woods finished the day even par, shooting a 72, after bogeying the 17th and 18th holes.