Signed for above slot value by the Pirates in 2014 after they drafted him in the supplemental second round, Supak spent two years in Pittsburgh's system before heading to the Brewers with Keon Broxton in a December 2015 trade. He struggled with the move up to Class A Advanced Carolina in 2017, but he returned there last season and earned honors as a mid-season All-Star before advancing to Double-A in late May. Supak pitched well in the Southern League, showing an impressive four-pitch mix en route to a 2.91 ERA over 16 starts, and the Brewers added him to their 40-man roster after the season.
Supak's velocity has improved as he's grown into his big frame and learned to better repeat his delivery, and he spent his breakout 2018 campaign sitting in the low 90s and touching 95 mph. The 6-foot-5 right-hander will use his height to create angle to the plate, showing feel for pounding the bottom of the zone or elevating his heater with some riding life. His slider and changeup have above-average potential, and he throws both more than he does his mid-70s curveball, a fringy pitch that he can locate for strikes. He's consistently around the zone with all four pitches, demonstrating an above-average control profile, though his command still requires refinement.
The fly-ball tendencies that hurt Supak at times in 2017 improved last season, as he generated more ground-ball contact and did a better job of keeping the ball in the park. His feel for mixing his pitches translates to solid, if unspectacular strikeout rates right now, and he might not miss as many bats at higher levels given his velocity and lack of a put-away pitch. That said, Supak has all the ingredients to be a successful big league starter, with size, stuff and feel for pitching that point to him becoming a durable, back-of-the-rotation asset for the Brewers.
Milwaukee Brewers recalled RHP Trey Supak from San Antonio Missions.
RHP Trey Supak assigned to San Antonio Missions from Biloxi Shuckers.
Milwaukee Brewers optioned RHP Trey Supak to Biloxi Shuckers.
Milwaukee Brewers selected the contract of Trey Supak from Biloxi Shuckers.
Biloxi Shuckers activated RHP Trey Supak from the 7-day disabled list.
Biloxi Shuckers placed RHP Trey Supak on the 7-day disabled list retroactive to August 4, 2018.
RHP Trey Supak assigned to Biloxi Shuckers from Carolina Mudcats.
RHP Trey Supak assigned to Carolina Mudcats from Wisconsin Timber Rattlers.
RHP Trey Supak assigned to Wisconsin Timber Rattlers from Helena Brewers.
RHP Trey Supak assigned to Helena Brewers.
Milwaukee Brewers traded 1B Jason Rogers to Pittsburgh Pirates for CF Keon Broxton and RHP Trey Supak.
RHP Trey Supak assigned to Bristol Pirates from GCL Pirates.
Pittsburgh Pirates signed Trey Supak.
RHP Trey Supak assigned to GCL Pirates.