| Player: Duncan Marsten | |||||||||||
| School: Wake Forest | Position(s): RHP | ||||||||||
| Height: 6’3″ | Weight: 220 lbs. | Bats: Right | Throws: Right | ||||||||
| Summary: Marsten was a highly regarded prospect in the 2024 draft coming out of Harvard-Westlake, but chose to attend Wake Forest where he will be a draft eligible sophomore in the 2026 class. He had Tommy John surgery in high school and battled other injuries as well that really impacted his sophomore and junior years, then got just 10.1 innings for Wake in 2025 before heading to the Cape, where he looked solid. The stuff is real, coming from a low slot with low effort, the loose and whippy arm sits into the mid-90s and has touched triple digits in the past. He has an above average slider in the low to mid 80s, and a changeup that shows above average too in the mid to upper 80s. If he can stay healthy and earn a spot in the rotation for 2026, this is an arm that could really rocket up boards. | |||||||||||
Shaun Kernahan is the founder and lead writer of Three Quarter Slot, where he blends scouting precision with a storyteller’s eye for the human side of the game. Based in Parker, Colorado, he has covered baseball prospects at every level since 2013, delivering in-depth evaluations, draft analysis, and developmental insight. Over the years, he has built Three Quarter Slot into a trusted home for thoughtful prospect coverage, detailed scouting reports, and a grounded look at how talent evolves
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