The Tampa Bay Rays (65-65) and Seattle Mariners (66-65) begin a three-game series on Monday, with the first pitch at T-Mobile Park scheduled for 9:40 pm ET (FS1). Break down FanDuel Sportsbook's lines on Rays vs. Mariners odds and make your best betting predictions and forecasts from MLB experts.
Season series: Rays lead 2-1
The Rays lost the series opener to the Los Angeles Dodgers, 7-3, on Friday, but Jose Caballero's game-tying, two-run homer in the top of the 10th inning Saturday sealed an easy win for the Over, winning 9-8. The Rays lost the pitcher's duel, 3-1, on Sunday.
The over is 2-1 in the series in Los Angeles, but the under is 7-4-1 and 1 tie in the Rays' last 12 games.
The Mariners fought back with a 6-5 win over the San Francisco Giants on Friday in interim manager Dan Wilson's first game since the firing of manager Scott Servais on Thursday. The Giants narrowly won 4-3 on Saturday and Seattle recorded their third straight one-run victory, 4-3, on Sunday, pushing the total points (7) up in most stores. The Mariners have the over 6-1-2 in their past nine games.
These teams played three games in St. Petersburg from June 24-26 with the Rays winning two of the three. The Over made gains in the middle, but the opening and final games pushed up the total in most shops.
Rays vs Mariners predicted starting lineup
RHP Ryan Pepiot vs. RHP
Pepiot (7-5, 3.65 ERA) is making his 20th start and has a 1.06 WHIP, 3.0 BB/9 and 9.5 K/9 in 98 2/3 innings.
Last start: 4-2 road win against the Oakland Athletics on Wednesday, 6 innings, 2 runs, 3 hits (1 home run), 1 walk, 5 strikeouts. 2024 road record: 4-2 in 7 starts, 3.50 ERA (36 innings, 14 runs), 1.06 WHIP, .205 opponents batting average (OBA), 11 walks, 38 strikeouts. 2024/career against Mariners: 5-2 home loss on June 26, no decision, 5 1/3 innings, 1 run, 1 hit, 2 walks, 8 strikeouts.
Miller (9-7, 3.32 ERA) is making his 26th start and has a 1.02 WHIP, 2.1 BB/9 and 8.3 K/9 in 143 2/3 innings.
Last start: Tuesday's 6-3 road loss to the Los Angeles Dodgers, no decision, 4 innings, 2 runs allowed, 5 hits (2 solo home runs), 2 walks, 5 strikeouts, 2024 home record: 5-3 in 13 starts, 2.09 ERA (77 1/3 innings, 18 runs allowed), 0.91 WHIP, .188 batting average, 4 home runs, 18 walks, 86 strikeouts, never faced the Giants
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Rays vs Mariners odds
Courtesy of FanDuel Sportsbook. For the complete list, visit the USA TODAY Sports Scores and Sports Betting Odds Hub. Lines last updated Sunday at 7:18 PM ET.
Money Line (ML): Rays +102 (bet $100 to win $102) | Mariners -120 (bet $120 to win $100) Run Line (RL)/Against the Spread (ATS): Rays +1.5 (-220) | Mariners -1.5 (+180) Over/Under (O/U): 7 (O: -110 | U: -110)
Rays vs. Mariners predictions and expectations
prediction
Mariners 3, Rays 2
Money Line
The Mariners (-120) are worth a light bet in the series opener, as Pepiot and Miller could pitch surprisingly well.
Seattle has picked up a bit of pace offensively recently, but pitching remains an issue, but the Mariners are 5-3 in Miller's last eight games and he has allowed three runs or fewer in eight of his last nine starts.
Against run line/spread
Rays +1.5 (-220) will pay you more than double the potential return if you want a little extra insurance and aren't in the mood to fully back Tampa Bay.
Even if you were to include Tampa Bay in a multi-leg parlay, it would be too much risk and not enough reward.
avoid.
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Over/Under
UNDER 7 (-110) is also worth a small bet, bet half a unit maximum.
We’re bucking the trend a bit here, as the over is 6-1-2 in the Mariners’ last nine games while the under is 5-4-1 in their last 10 home games.
The Rays have won two of their three games in Los Angeles, but the under is 13-6-1 tie in their last 20 August games.
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