Nelson Keljo

Draft Prospects

• Ranked #350 prospect in 2025 draft
  School: Oregon State Drafted/Committed: Never Drafted
  Age At Draft: 21.8
  
  Keljo spent his first two seasons at Oregon State as a reliever before earning a rotation role in 2025 thanks to improved strike-throwing. He started 11 of 17 appearances and posted a 4.01 ERA with 63 strikeouts and 33 walks over 58.1 innings. A physical 6-foot-5, 230-pound lefthander, Keljo operates with a three-pitch mix headlined by a 90-94 mph fastball that touches 96. He leaned heavily on the pitch in 2025, throwing it 77% of the time. He also mixed in a slurvy, low-80s slider with modest depth and a mid-80s changeup, though neither developed into a reliable secondary weapon. Keljo throws with visible effort and some recoil, and his control regressed in 2025. His walk rate jumped from 7.3% to 12.9%, while his strikeout rate fell from 31% across his first two seasons to just 24% as a junior. Given the delivery and command issues, Keljo is likely headed for a bullpen role in pro ball and will need to take a step forward with both his control and pitch quality.