Mariners vs Diamondbacks Picks and Prediction – 6/10/2025

The Seattle Mariners open a three-game series on the road Monday versus the Arizona Diamondbacks. Seattle dropped to 32-31 following Saturday’s 8-6 loss to the Los Angeles Angels. Seattle has lost each of the first two games of its three-game series with the Angels, and the Mariners have lost five straight overall. Seattle trails first-place Houston by 3 ½ games in the American League West. Keep up to date with all the MLB action with our expert MLB picks.

J.P. Crawford is batting .285 with a .398 on-base percentage to lead Seattle in both. Cal Raleigh is the leader in home runs with 26 and RBI with 53, while Julio Rodriguez leads the Mariners in hits with 64. Seattle is batting .238 with a .394 slugging percentage. On Monday, Seattle will send Emerson Hancock to the mound. The right-hander is 2-2 with a 5.19 ERA, 38 Ks, and 17 BBs.

The Arizona Diamondbacks dropped to 31-33 following Saturday’s 13-1 loss to the Cincinnati Reds. Arizona has lost two straight to Cincinnati and will complete a three-game series with the Reds on Sunday. Arizona has lost six of the last 10, and the Diamondbacks trail first-place Los Angeles in the National League West by 6 ½ games. 

Josh Miller is batting .288 with 68 hits to lead Arizona in both categories. Corbin Carroll leads Arizona in home runs with 18, and Eugenio Suarez leads the Diamondbacks in RBI with 47. Geraldo Perdomo is the leader in on-base percentage at .367. On Monday, the Arizona Diamondbacks will send Merrill Kelly to the mound. The right-hander is 6-2 with a 3.43 ERA, 72 Ks, and 19 BBs.

Seattle will win on the road Monday, but the play here is UNDER. The UNDER has cashed in four of Seattle's last five and three of Arizona's last five. Seattle starter Emerson Hancock has had two straight strong outings, allowing three runs on four hits across 11 innings. Arizona starter Merrill Kelly is coming off a strong outing in which the right-hander allowed no runs on one hit across seven innings. Final Score Prediction: Seattle Mariners win but our best play is UNDER 4-2.