Johnson Wagner’s first PGA Tour victory came with the ultimate bonus prize _ a trip to the Masters.

Wagner controlled his nerves and held off several late challenges Sunday to win the Houston Open and earn a last-minute invitation to Augusta National.

The 28-year-old Wagner shot a 1-under 71 to finish at 16 under, two shots ahead of Chad Campbell (72) and Geoff Ogilvy (68). Billy Mayfair and Fred Couples shot 66s and finished three shots back at 13 under. Bob Estes and Charley Hoffman, three behind Wagner at the start of the round, shot 72s and finished four behind.

Wagner had missed six cuts in nine previous starts this year and was ranked 193rd on the money list when he arrived in Houston. He matched defending champion Adam Scott’s course-record 63 in the first round, then held the 36- and 54-hole leads at an event for the first time in 44 career starts.

His emotions showed all day, as sweat soaked through his green shirt and he nervously wiped his hands with a white towel before most of his shots.

But Wagner held it together, pumping his fist after sinking a 6-foot par putt on the 72nd hole as his parents and several family members cheered from behind the green.

Next week, they’ll be applauding him at Augusta.