The Tampa Bay Rays (50-46) visit the Boston Red Sox (52-45) Sunday in the finale of a 4-game series. First pitch from Fenway Park is set for 1:35 p.m. ET (MLB Network). Let’s analyze BetMGM Sportsbook’s MLB odds around the Rays vs. Red Sox odds and make our expert MLB picks and predictions for the best bets.

Season series: Red Sox lead 5-1

The Rays lost to the Red Sox 1-0 Saturday, closing as a +148 moneyline underdog. Tampa Bay has dropped all 3 games of the series, losing each by just one run. The Rays have struggled over the last few weeks, going 3-10 in their last 13 contests.

The Red Sox have been surging, ripping off 9 straight wins. Before this series, they swept the Washington Nationals on the road and then the Colorado Rockies at home. Boston has tallied double-figure runs in 4 of its last 9 games.

Rays at Red Sox projected starters

RHP Ryan Pepiot vs. RHP Brayan Bello

Pepiot (6-6, 3.32 ERA) makes his 20th start. He has a 1.15 WHIP, 3.0 BB/9 and 8.9 K/9 through 108 1/3 innings.

Last start: No-decision, 6 IP, 2 ER, 3 H (1 HR), 3 BB, 6 K in 4-2 road defeat at Detroit Tigers Tuesday2025 road stats: 1-3, 3.72 ERA (36 1/3 IP, 15 ER), 1.16 WHIP, 7.7 K/9 in 7 startsCareer vs. Red Sox: 0-3, 4.91 ERA (25 2/3 IP, 14 ER), 1.25 WHIP, 22 H, 10 BB, 37 K in 5 starts

Bello (5-3, 3.27 ERA) makes his 15th start (16th appearance). He has a 1.30 WHIP, 3.6 BB/9 and 6.9 K/9 through 85 1/3 innings.

Last start: Win, 9 IP, 2 ER, 5 H, 1 BB, 10 K in 10-2 home victory vs. the Colorado Rockies Tuesday2025 home stats: 4-2, 3.38 ERA (64 IP, 24 ER), 1.31 WHIP, 6.9 K/9 in 10 starts and 1 relief appearanceCareer vs. Rays: 2-4, 5.51 ERA (43 IP, 27 ER), 1.52 WHIP, 49 H, 18 BB, 39 K in 8 starts

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Rays at Red Sox odds

Provided by BetMGM Sportsbook; access USA TODAY Sports Scores and Sports Betting Odds hub for a full list. Lines last updated Saturday at 10:26 p.m. ET.

Moneyline (ML): Rays +110 (bet $100 to win $110) | Red Sox -130 (bet $130 to win $100)Run line (RL)/Against the spread (ATS): Rays +1.5 (-190) | Red Sox -1.5 (+155)Over/Under (O/U): 9 (O: -115 | U: -105)Rays at Red Sox picks and predictionsPrediction

Rays 4, Red Sox 3

BET RAYS (+110).

Tampa Bay sits in the top half of the league in win rate following a loss, having gone 24-21. The Rays have also only been swept on the road once this season, so they often are able to win at least once.

The Red Sox are just 2-5 in Bello’s last 7 starts. Their bats cooled off significantly Saturday, scoring just one run after totaling 29 in their previous 4 games. Considering those trends, take RAYS (+110).

PASS.

There’s no playable moneyline wager. The Rays (-190) are too expensive to consider as the underdog while the Red Sox (+155) are too risky as the favorite.

BET UNDER 9 (-105).

Both starting options come into this game with an ERA of 3.40 or under, which should help limit runs early in this one. This series has been 0-2-1 O/U through 3 games, with neither team scoring more than 5 runs in a game yet.

The Rays have scored 4 or fewer runs in 5 of their last 6 contests. They are 1-4-1 O/U in those games and 39-53-4 O/U on the season. Back UNDER 9 (-105).

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