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Scouting Report
Updated May 19, 2026
24-year-old LHP Zach Thornton, the Mets' No. 13 prospect, was called up to the majors following Clay Holmes' fibula fracture. Thornton has impressed at Triple-A Syracuse with a 2.25 ERA in two starts before his promotion. He is known for elite command and control, ranking among the best in minor league baseball. Manager Carlos Mendoza praised his strike-throwing ability and pitchability. Thornton made his Triple-A debut allowing 3 earned runs over 6 innings with 4 strikeouts. He was promoted from Double-A where he posted a 1.98 ERA and 0.82 WHIP with 27 strikeouts in 5 starts. The 24-year-old is a former fifth-round pick (2023) who has added velocity, with fastballs sitting in the low 90s touching 95 mph, complemented by a potentially plus slider and multiple off-speed pitches.
Strengths
- + Elite command and control - best in Mets organization
- + Strong minor league performance: 1.98 ERA and 0.82 WHIP at Double-A
- + Rapid advancement through system since 2023 draft
- + Multiple quality pitches including plus slider
- + Fastball velocity in low 90s touching 95 mph
- + Manager endorsement for pitchability and strike-throwing
- + Favorable matchup against Nationals lineup
- + Solid Triple-A debut: 6 innings, 4 strikeouts
- + Young age (24) with upside for development
About
Zack Thompson is a sp for the St Louis Cardinals.
Player Overview
SP
St Louis Cardinals