Age: 25
Level: MLB
Position: Relief Pitcher
Bats/Throws: Left/Left
Height/Weight: 6’3″/185 pounds
Acquired: 2022 Draft, Round 3
Current BSB Ranking: 22
Previous BSB Ranking: 20
Pic Credit: John E. Moore III/Getty Images
Player Summary
Brief Summary
Despite making his MLB debut in 2025, Carson Palmquist still qualifies as a prospect after just nine appearances with the Colorado Rockies. The left-hander struggled initially, posting an 8.91 ERA in the majors, but rebounded in Triple-A with a 4.64 ERA in the hitter-friendly PCL. A deceptive sidearm “soft-lefty,” Palmquist relies on extension and a dominant sweeper, though his fastball and cutter were hit hard. Improving those pitches will be key as he looks to prove doubters wrong again.
More detailed breakdown
Palmquist made his MLB debut with the Rockies last year, logging 9 appearances, but is still considered a prospect due to his limited playing time. The lefty struggled mightily in his transition to the big leagues with an 8.91 ERA, 2.039 WHIP, and a 1.08 K/BB ratio. However, he was able to find his footing in Triple-A after being sent down, posting a respectable 4.64 ERA, 1.339 WHIP, and 2.24 K/BB ratio in the notoriously hitter-friendly Pacific Coast League.
Palmquist has a typical “soft-lefty” profile, with his fastball only sitting around 90 MPH. He relies on a deceptive sidearm delivery with great extension (97th percentile) and a nasty sweeper which allowed a mere .176 wOBA against major league competition. However, his fastball and cutter allowed wOBA’s of .491 and .761, respectively. He will need to find a way for those pitches to be much more effective to succeed at the highest level.
The struggles were a new experience for Palmquist, as he had dominated his competition in college and in the lower levels of the minor leagues. The doubt he now faces is not new though, as he was not considered an elite prospect out of high school or college despite dominant stats. Palmquist will look to prove the doubters wrong again this year and establish himself as a legitimate big leaguer. Written by Cooper Hearne.
Player Links
MLB.com player page | Fangraphs | Baseball Savant | Baseball Reference
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