Dustin Hagens Jr. made a crucial shift to the bullpen for UMSL this season, and it paid off big for the Tritons, helping them to their first NCAA appearance since 2023. But let's be real, while the guy's got a cannon and a delivery that reminds folks of a right-handed Aroldis Chapman, his control record is going to be the absolute first thing any scout or front office brings up.
That Arm Is LEGIT, No Joke
First things first: this dude can flat-out throw. Hagens, still a bit undersized at 6'1" and 160 pounds, pitches from a low-three-quarter arm slot, and his leg lift, hip coil, and loose, whippy arm motion really do echo a right-handed Aroldis Chapman. He gets great extension pushing off the mound, and that translates to pure heat. His four-seam fastball sits consistently in the low-to-mid-90s, and it’s been clocked as high as 97 MPH. Thanks to high spin rates and that arm slot, it's got serious run and rising life, making it super effective up in the zone. He throws a curveball and a slider too. Yeah, they sometimes "bleed into each other," as the scouts say, making them tough to differentiate, but against DII competition, both pitches have been exceptional, rocking above-average spin rates, big shape, and depth. The stuff is there. The raw talent is undeniable.From Starter Struggles to Bullpen Beast
Hagens was a three-sport star in high school, leading his baseball team to state semifinals. He went to UMSL after going undrafted in 2023, and his first two years as a starter were a bit rough. In 2024, his freshman year, he started 11 of 13 games, throwing 50.0 innings with a 9.90 ERA, allowing 45 hits, walking a staggering 49, and striking out 80. His sophomore season in 2025 was a carbon copy: 11 starts in 16 appearances, a 5.46 ERA over 56.0 innings, giving up 44 hits, walking 58, and fanning 84. It wasn't pretty. Then, head coach Scott Eul moved Hagens to the bullpen for the 2026 season, and that move was clutch. Hagens appeared in 20 games, all in relief, dropping his ERA to 4.58 over 39.1 innings. He allowed only 32 hits, grabbed 6 saves, and, get this, cut his walks down to 18 while striking out 57. That bullpen role was a game-changer for the 34-22 Tritons.The Walk Rate: A Cold Hard Fact
Alright, let's talk about it, because you know everyone else will: the control. It's the "elephant in the room" for a reason. Across 145.1 innings at UMSL, with two-thirds of those as a starter, Hagens walked 125 batters. Think about that: 125 walks compared to 121 hits allowed. Yikes. Even with the move to the bullpen in 2026, where his walk rate did improve, he still gave up 18 free passes in just 39.1 innings, which translates to a well below-average 10.4% BB%. For Hagens to reach his potential, he absolutely has to fine-tune his delivery, stopping himself from flying open and getting that arm on target. He also needs to command those breaking balls more consistently. That’s the puzzle any team picking him up will need to solve. So, what's next for this right-hander? The arm talent is undeniable, the Chapman comparison is exciting, and his bullpen performance in 2026 showed he can adapt and thrive. But the walks are still a major question mark. Any team drafting him knows they're getting electric stuff, but also a project in command.This article was created with AI assistance and reviewed by Seattle On Tap editorial staff. Always verify information with official team sources.