Seattle Mariners at Oakland A’s odds, picks and predictions

Analyzing Wednesday’s Seattle Mariners at Oakland A’s odds and lines, with MLB expert picks, predictions and best bets.

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The Seattle Mariners (35-27) play the middle game of their 3-game road series at the Oakland A’s (24-38) Wednesday. First pitch from Oakland-Alameda County Coliseum is at 9:40 p.m. ET. Let’s analyze BetMGM Sportsbook’s lines around the Mariners vs. A’s odds and make our expert MLB picks and predictions for the best bets.

Season series: Mariners lead 3-1

Seattle won Tuesday’s opener 4-3 as a -153 favorite with the Under (7.5) sneaking in as a winner. RHP George Kirby (5 IP, 2 ER) struck out 9 in notching his 1st win in his last 5 starts, 1B Ty France drove in 2 runs and 3B Josh Rojas went 3 for 5 with a run and an RBI.

The Mariners have won 4 games in a row and 8 of their last 9. They lead the AL West by 5½ games.

The A’s have lost 5 of their last 6 games, including 2 in a row, and have lost their last 3 series. Seven of their 9 starters recorded a hit Tuesday, including 2 hits from CF JJ Bleday, but Oakland couldn’t overcome a 4-1 lead Seattle built in the first 3½ innings.

Mariners at A’s projected starters

RHP Logan Gilbert vs. RHP Joey Estes

Gilbert (3-3, 3.29 ERA) makes his 13th start. He has a 1.00 WHIP, 2.3 BB/9 and 8.3 K/9 through 76 2/3 innings.

  • Last start: Loss, 6 IP, 4 ER, 8 H, 1 BB, 5 K in 4-0 home loss to Houston Astros Thursday
  • Career vs. A’s: 2-0, 3.33 ERA (51 1/3 IP, 19 ER), 0.96 WHIP, 7.2 K/9 in 9 starts
  • 2023 vs. A’s: 1-0, 2.57 ERA (14 IP, 4 ER), 6 H, 2 BB 12 K in 2 starts
  • Last 5 starts: 0-3, 5.97 ERA (28 2/3 IP, 19 ER), 1.36 WHIP, 6.6 K/9

Estes (1-1, 6.10 ERA) makes his 5th start. He has a 1.21 WHIP, 2.6 BB/9 and 8.7 K/9 through 20 2/3 innings.

  • Last start: No decision, 5 IP, 1 ER, 2 H, 2 B, 5 K in 4-3 road loss at Tampa Bay Rays May 29
  • Picked up 8-1 win in 1st start of season over Mariners May 11, allowing 1 run in 5 innings
  • Career vs. Mariners: 1-1, 5.59 ERA (9 2/3 IP, 6 ER), 8 H, 1 BB, 7 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 2:31 p.m. ET.

  • Moneyline (ML): Mariners -160 (bet $160 to win $100) | A’s +135 (bet $100 to win $135)
  • Run line (RL)/Against the spread (ATS): Mariners -1.5 (+110) | A’s +1.5 (-130)
  • Over/Under (O/U): 8 (O: -115 | U: -105)

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Mariners at A’s picks and predictions

Prediction

Mariners 6, A’s 4

Moneyline

The Mariners are rolling right now, having won 4 straight and 8 of 9. They have beaten the A’s in 15 of the last 17 head-to-head meetings — Seattle won 12 of 13 vs. Oakland last season.

Gilbert has struggled a little bit over the last month, but as mentioned, he is 2-0 with a 3.33 ERA in 9 career starts against the A’s.

It’s right on the edge of where you want to bet in terms of value, but BET MARINERS (-160).

Run line/Against the spread

Seattle has had 4 one-run victories in its last 7 wins, so it’s risky to bet the M’s -1.5 (+110) here.

Three of Oakland’s last 5 losses have been by only 1 run, but I’m not interested in backing the A’s +1.5 (-130) since they’re struggling at the moment.

PASS.

Over/Under

Five of the last 6 meetings between these AL West rivals have had 9 or more total runs.

Gilbert’s ERA over his last 5 starts suggests the A’s will get a few runs. Plus, Seattle finished with 8 in 2 of its 3 wins vs. Oakland this season.

BET OVER 8 (-115).

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