LHP David Peterson, the Mets' first-round pick in 2017, has been promoted to Single-A St. Lucie, the team announced.
Peterson is coming off a stellar outing on Saturday night, as he struck out a career-high 10 batters in eigh innings agains Augusta. He has posted a 1.82 ERA with 57 strikeouts in nine starts (59.1 innings) this season.
Peterson has completed seven innings in all but one of his last six starts, with that one exception being a 6 and 2/3-inning outing on May 27. He has struck out at least seven batters in each of his last four starts and has walked no more than two batters in any those games.
The 22-year-old Peterson, who was selected 20th overall in last June's MLB draft, is ranked No. 58 on Keith Law of ESPN's Top 100 Prospects list.
"Peterson's fastball comes in at 90-92 on average and touches 94 when he needs a little more, but the grade 55 slider is his out pitch, and he can throw both for strikes," Law said. "He takes advantage of his height with huge extension toward the plate and has a little funk in the back of his delivery to give him some more deception."
Law has praised Peterson's accuracy and said it is difficult for hitters to see the ball when they are facing him.
"He has a high floor as a back-end starter," Law said, "but there's a little Chris Sale/Alex Wood potential here if he adds velocity when he fills out."