The Seattle Mariners (57-51) and the A’s (47-63) wrap up a 3-game series Wednesday. First pitch from Sutter Health Park in West Sacramento is scheduled for 10:05 p.m. ET (MLB Network). Let’s analyze BetMGM Sportsbook’s MLB odds around the Mariners vs. A’s odds and make our expert MLB picks and predictions for the best bets.
Season series: Mariners lead 5-4
After losing Monday’s series opener 3-1 as +115 underdogs, the A’s bounced back with a 6-1 win Tuesday, cashing as -108 favorites. The Under hit in both meetings, closing at 10.5 in the opener and 11 the following night. DH Brent Rooker hit a 3-run homer in the third inning Tuesday, and C Shea Langeliers added a solo shot in the fifth.
Mariners DH Jorge Polanco drove in Seattle’s only run with an RBI single in the fourth inning. The Mariners have alternated wins and losses over their last 9 games.
Mariners at A’s projected starters
RHP Bryan Woo vs. LHP Jeffrey Springs
Woo (8-5, 2.91 ERA) makes his 21st start. He has a 0.95 WHIP, 1.7 BB/9 and 8.6 K/9 through 126 2/3 innings.
- Last start: No-decision, 6 IP, 2 ER, 4 H, 2 BB, 6 K in 3-2 setback in 10 innings at Los Angeles Angels Friday
- 2025 vs. A’s: 1-0, 4.50 ERA (12 IP, 6 ER), 1.17 WHIP, 11 H, 3 BB, 11 K in 2 starts
Springs (9-7, 4.13 ERA) makes his 21st start and 23rd appearance. He has a 1.20 WHIP, 2.9 BB/9 and 7.1 K/9 through 120 innings.
- Last start: Win, 6 IP, 2 ER, 4 H, 1 BB, 5 K in 15-3 victory at Houston Astros Friday
- 2025 vs. Mariners: 1-0, 1.64 ERA (11 IP, 2 ER), 1.00 WHIP, 8 H, 3 BB, 13 K in 2 starts
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Mariners at A’s odds
Provided by BetMGM Sportsbook; access USA TODAY Sports Scores and Sports Betting Odds hub for a full list. Lines last updated at 1:14 p.m. ET.
- Moneyline (ML): Mariners -150 (bet $150 to win $100) | A’s +125 (bet $100 to win $125)
- Run line (RL)/Against the spread (ATS): Mariners -1.5 (+110) | A’s +1.5 (-130)
- Over/Under (O/U): 9.5 (O: -110 | U: -110)
Mariners at A’s picks and predictions
Prediction
Mariners 5, A’s 4
Seattle (-150) will probably bounce back after losing by 5 runs Tuesday, but it’s too expensive at this price.
PASS on the moneyline.
The A’s have covered the +1.5 run line in 6 of their last 7 games and have won outright in 4 of Springs’ last 5 starts. The Mariners, meanwhile, have won by multiple runs just 3 times over their past 11 games and have lost each of Woo’s last 3 starts.
BET A’S +1.5 (-130).
Springs has allowed 2 ER or fewer in 6 of his last 8 starts. On the other side, Woo has done the same in 6 of his last 7 outings. With the Under already 2-0 in this series, BET UNDER 9.5 (-110).
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