Zack Wheeler was dominant for much of his Triple-A debut.

The Mets’ top prospect, pitching for the Buffalo Bisons for the first time, struck out seven and allowed two runs, but finished one out shy of qualifying for a win despite leaving with a 3-2 lead in Syracuse.

In 4 2/3 innings, Wheeler allowed three hits, walked four and hit a batter. His fastball was regularly clocked in the mid-90s, and he threw 61 of his 101 pitches for strikes.

Wheeler, who struck out the side in the third, escaped jams in the first and fourth, but ran into trouble in the fifth and couldn’t get himself out of it.

Brett Carroll led off the frame with a single and advanced to second on Zach Duke's sacrifice bunt. Wheeler followed by walking Eury Perez on four pitches and plunking Jarrett Hoffpauir to load the bases. Then Corey Brown lifted a sac fly to left, and Carlos Rivero knocked Wheeler out of the game with an RBI single.

Prior to his promotion, the 22-year-old right-hander had gone 10-6 in 19 starts for Double-A Binghamton with a 3.26 ERA. He was supposed to make his first-ever Triple-A start on Sunday night, but the game was rained out.

Wheeler was acquired by the Mets in the one-for-one blockbuster trade that sent Carlos Beltran to the Giants last year.

You can watch Wheeler’s outing on tape delay on SNY starting at 7 p.m.