Miami Marlins at Seattle Mariners odds, picks and predictions

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

The Miami Marlins (37-31) and Seattle Mariners (33-33) wrap up a 3-game set Wednesday at T-Mobile Park. First pitch is scheduled for 9:40 p.m. ET. Let’s analyze BetMGM Sportsbook’s lines around the Marlins vs. Mariners odds and make our expert MLB picks and predictions for the best bets.

Season series: Mariners lead 2-0

The Marlins lost 9-3 as +140 underdogs Tuesday. Miami has dropped back-to-back contests for the 1st time since dropping 3 in a row from May 21-23 and is 4 games behind the Atlanta Braves for the lead in the NL East.

The Mariners closed as -152 home favorites in Tuesday’s win. Seattle has won 2 in a row for the 1st time since May 27-28 and sits 4th in the AL West, 8 games back of the division-leading Texas Rangers.

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Marlins at Mariners projected starters

RHP Eury Pérez vs. RHP Luis Castillo

Pérez (3-1, 2.17 ERA) makes his 7th start. He has a 1.21 WHIP, 4.0 BB/9 and 9.3 K/9 through 29 innings.

  • Last start: No-decision, 5 IP, 1 ER, 5 H, 2 BB, 6 K in a 2-1 loss at Chicago White Sox Friday
  • First career start vs. Mariners

Castillo (4-4, 2.70 ERA) makes his 14th start. He has a 0.99 WHIP, 2.0 BB/9 and 10.8 K/9 through 76 2/3 innings.

  • Last start: Loss, 6 IP, 3 ER, 6 H, 1 BB, 10 K in a 5-4 loss at Los Angeles Angels Friday
  • Career vs. Marlins: 5-0, 2.08 ERA (43 1/3 IP, 10 ER), 31 H, 3 HR, 7 BB, 45 K in 6 starts

Marlins at Mariners odds

Provided by BetMGM Sportsbook; access USA TODAY Sports Scores and Sports Betting Odds hub for a full list. Lines last updated at 2:35 p.m. ET.

  • Moneyline (ML): Marlins +160 (bet $100 to win $160) | Mariners -190 (bet $190 to win $100)
  • Run line (RL)/Against the spread (ATS): Marlins +1.5 (-140) | Mariners -1.5 (+115)
  • Over/Under (O/U): 7 (O: -105 | U: -115)

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Marlins at Mariners picks and predictions

Prediction

Marlins 3, Mariners 2

Moneyline

BET MARLINS (+160).

Miami has not been swept in a series since dropping a 3-game set vs. the Braves, who are the World Series favorites at +425, from May 2-4. The Mariners have swept the Rockies and the Athletics (twice) this season, but have not been able to complete a sweep against a team with a winning record. Miami should be able to bounce back Wednesday after 2 bad losses and pull out a close victory with Pérez on the mound.

Run line/Against the spread

PASS.

Miami +1.5 (-140) should hit, but there is no need to pay the higher price on the run line when the Marlins should win straight up. Bet the moneyline and/or the total instead.

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Over/Under

BET UNDER 7 (-115).

Miami’s pitching staff has helped keep games low-scoring after losses as the Under is 8-2 in Miami’s last 10 after dropping its previous game. The Under has hit in 7 of Seattle’s last 10 home games vs. right-handed starters and should cash again Wednesday with Pérez and Castillo as the starting pitchers.

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