Petey Halpin is a Red Diamond 97 OVR Center Fielder card for the Guardians, part of the Topps Now set in MLB The Show's Diamond Dynasty. He bats left-handed. He is also eligible at Left Fielder and Right Fielder. The card was added to Diamond Dynasty in July 2026.

At the plate, Petey Halpin's standout tools are 105 Contact, 100 Power, and 99 Arm Strength. His profile leans toward contact hitting. Notable quirks include Dead Red from a total of 6 quirks.

Petey Halpin is eligible at 4 positions, and DiamondOps scores each one separately: Right Fielder (93.7), Center Fielder (93.6), Left Fielder (91.5), and Designated Hitter (85.2) on All-Star. The best fit is Right Fielder rather than the listed Center Fielder, and that holds at every difficulty. At Right Fielder the card scores 93.7 on All-Star, 98.2 on Hall of Fame, and 98.9 on Legend — it keeps 106% of its All-Star value at the top difficulty, which is unusually durable. Among Center Fielders the card ranks #20 on Legend and #26 on All-Star.

On the Diamond Dynasty market, Petey Halpin currently buys for about 5,617 stubs, with sell orders near 0 stubs. Over the past 7 days the price has held roughly steady. Its quick-sell value of 5,000 stubs sits at or above the sell price, making it quick-sell viable. DiamondOps suggests waiting for a better entry point.

OpScore is DiamondOps' composite rating of a card's in-game performance value. Petey Halpin earns an OpScore of 97.8 on Legend difficulty, ranking #184 among all cards and #20 among Center Fielders.