John Donaldson

John Donaldson is a Red Diamond 99 OVR Starting Pitcher card for the Free Agents, part of the The Negro Leagues set in MLB The Show's Diamond Dynasty. He throws left-handed. As a two-way card, he can be used as both a hitter and a pitcher in the same lineup. He is also eligible at First Baseman, Left Fielder, Center Fielder, and Right Fielder. The card was added to Diamond Dynasty in September 2026.

On the mound, John Donaldson works with a 5-pitch arsenal led by a 99 mph 4-Seam Fastball and a 95 mph Sinker. His pitching ratings include 99 Velocity, 91 Control, and 99 Break. The profile favors a balanced mix of command and movement. Notable quirks include Outlier I and Outlier II from a total of 4 quirks.

John Donaldson is eligible at 5 positions, and DiamondOps scores each one separately: Center Fielder (85.3), Right Fielder (84.2), Left Fielder (81.6), First Baseman (73.7), and Designated Hitter (69.7) on All-Star. The best fit is Center Fielder rather than the listed Starting Pitcher, and that holds at every difficulty. At Center Fielder the card scores 85.3 on All-Star, 89.4 on Hall of Fame, and 90.5 on Legend — it keeps 106% of its All-Star value at the top difficulty, which is unusually durable. Among Starting Pitchers the card ranks #8 on All-Star and #11 on Legend.

DiamondOps grades each pitch in John Donaldson's arsenal: Slider (S), 4-Seam Fastball (S), Sinker (S), Forkball (A), and Slurve (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 4-Seam Fastball 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, John Donaldson currently buys for about 299,000 stubs, with sell orders near 271,111 stubs. Over the past 5 days the price has held roughly steady. DiamondOps suggests waiting for a better entry point.

OpScore is DiamondOps' composite rating of a card's in-game performance value. John Donaldson earns an OpScore of 102.1 on Legend difficulty, ranking #168 among all cards and #11 among Starting Pitchers.