SEATTLE (Interstat) — Luis Castillo pitched five innings of two-hit relief and Victor Robles delivered a walk-off single in the 10th inning as the Seattle Mariners beat the Arizona Diamondbacks 3-2 on Sunday evening at T-Mobile Park.

The Mariners grabbed an early lead on Cole Young’s solo home run in the second, but Arizona tied it in the sixth on a sacrifice fly. Dominic Canzone answered with a solo homer in the bottom half for Seattle. Ketel Marte’s sacrifice fly in the eighth tied the game again.

In the 10th, Robles singled to shortstop, scoring Randy Arozarena. Castillo earned the win, improving to 2-5. Jonathan Loáisiga took the loss, falling to 1-2.

Bryce Miller started for Seattle and struck out six over five scoreless innings. Merrill Kelly allowed two runs in 5 1/3 innings for Arizona. Juan Morillo struck out five in two scoreless frames.

Seattle outhit Arizona 11-3. Attendance was 41,897. The game lasted 2 hours, 57 minutes. The Diamondbacks fell to 31-27, the Mariners improved to 31-29.