Quinn Mathews

Quinn Mathews is a Red Diamond 97 OVR Starting Pitcher card for the Cardinals, part of the Topps Now set in MLB The Show's Diamond Dynasty. He throws left-handed. The card was added to Diamond Dynasty in September 2026.

On the mound, Quinn Mathews works with a 5-pitch arsenal led by a 95 mph 4-Seam Fastball and a 95 mph Sinker. His pitching ratings include 96 Velocity, 69 Control, and 97 Break. The profile favors a movement-heavy arsenal built to miss bats. Notable quirks include Break Outlier from a total of 3 quirks.

DiamondOps grades each pitch in Quinn Mathews's arsenal: Slider (S), 4-Seam Fastball (S), Sinker (S), Circle Change (A), and Curveball (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 96 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.

Quinn Mathews is not currently traded on the open Diamond Dynasty market — cards like this are typically earned through programs or collections rather than bought with stubs.

OpScore is DiamondOps' composite rating of a card's in-game performance value. Quinn Mathews earns an OpScore of 90.7 on Legend difficulty, ranking #798 among all cards and #133 among Starting Pitchers.