Jack Leiter is a Silver 76 OVR Starting Pitcher card for the Free Agents, part of the Live set in MLB The Show's Diamond Dynasty. He throws right-handed. The card was added to Diamond Dynasty in April 2026.

On the mound, Jack Leiter works with a 5-pitch arsenal led by a 97 mph 4-Seam Fastball and a 95 mph Sinker. His pitching ratings include 99 Velocity, 63 Control, and 88 Break. The profile favors a movement-heavy arsenal built to miss bats.

DiamondOps grades each pitch in Jack Leiter's arsenal: Slider (S), 4-Seam Fastball (S), Sinker (S), Circle Change (A), and 12-6 Curve (B). 3 of them grade S-tier, which is what separates a genuine out-pitch mix from a deep-but-flat arsenal. Its strongest tunnel pairing is the 4-Seam Fastball off the Sinker, so the two share a release look. Its 99 mph Sinker adds a velocity bonus on top. Arsenal grades are the same at every difficulty — unlike a hitter's OpScore, a pitch mix does not re-weight as you climb.

On the Diamond Dynasty market, Jack Leiter currently buys for about 75 stubs, with sell orders near 0 stubs. Over the past 7 days the buy price has fallen roughly 21%. Its quick-sell value of 75 stubs sits at or above the sell price, making it quick-sell viable. DiamondOps currently rates the card a buy at this price.

OpScore is DiamondOps' composite rating of a card's in-game performance value. Jack Leiter earns an OpScore of 69 on Legend difficulty, ranking #1340 among all cards and #288 among Starting Pitchers.