Jack Martinez

22-Year-Old PitcherP

St. Louis Cardinals Rookie

2025 Stats

W-L

0-0

ERA

0.00

WHIP

0.00

2026 Projections

W-L

ERA

WHIP

Unlock Our Projections

2026 Fantasy Outlook

There was no outlook written for Jack Martinez in 2026. Check out the latest news below for more on his current fantasy value.

League Rookie

Bats R

Throws R

40 Man No

Height 6'4"

Weight 215

DOB 3/12/2003

Dealt to St. Louis

PSt. Louis Cardinals R

January 13, 2026

The Cardinals acquired Martinez from the Diamondbacks on Tuesday in exchange for Nolan Arenado and cash consideration, John Gambadoro of Arizona Sports 98.7 FM reports.

Analysis
Martinez was an eighth-round pick in the 2025 First-Year Player Draft and has yet to make his professional debut. The righty started 15 games in his final year at Arizona State, finishing with a 5.47 ERA and 110:33 K:BB over 77.1 innings. Martinez will turn 23 in March.