Seattle Mariners vs. Tampa Bay Rays Picks and Prediction for Sunday, July 12, 2026

By: David Anicetti Published 07/12/2026, 05:00 AM ET
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The Seattle Mariners visit the Tampa Bay Rays on Sunday at 1:40 PM ET at Tropicana Field in St. Petersburg, Florida. Seattle enters with a 47-48 record and sits second in the AL West, 1.5 games behind Texas. The Mariners have lost four straight games, including a 7-2 defeat in the series opener against Tampa Bay. The Rays are 55-37 and lead the AL East after winning four of their last five games. Cash in big with our free MLB picks.

Seattle Mariners Looking to End Their Four-Game Losing Streak

Seattle has struggled to generate offense on a consistent basis this season. The Mariners are batting .230 with 383 runs, 721 hits, 113 home runs, a .310 on-base percentage, and a .379 slugging percentage. Randy Arozarena leads the club with a .286 batting average, 91 hits, and a .378 on-base percentage. Dominic Canzone has supplied the power with 15 home runs, while Cole Young leads the team with 43 RBIs and has added 11 home runs. Seattle will need more production throughout the lineup after scoring only eight runs during its current four-game losing streak.

The Mariners have remained competitive because of their pitching staff. Seattle owns a 3.61 ERA and a 1.18 WHIP while holding opponents to a .240 batting average. The staff has recorded 812 strikeouts against only 236 walks, helping keep games within reach even when the offense has struggled to score consistently.

Injuries: Rob Refsnyder (10-Day IL), Julio Rodriguez (7-Day IL), Brendan Donovan (10-Day IL), Will Wilson (60-Day IL), Carlos Vargas (60-Day IL).

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Tampa Bay Rays Looking to Build on Their Division Lead

Tampa Bay has been one of the American League's most productive offensive clubs. The Rays are batting .259 with 417 runs, 795 hits, 92 home runs, a .334 on-base percentage, and a .401 slugging percentage. Yandy Diaz has been outstanding with a .321 batting average and 108 hits, while Junior Caminero leads the club with 28 home runs and 59 RBIs. Jonathan Aranda has driven in a team-high 61 runs while batting .291, giving Tampa Bay several dependable hitters throughout the lineup.

The Rays have also received steady production from their pitching staff. Tampa Bay owns a 3.79 ERA and a 1.17 WHIP while limiting opponents to a .232 batting average. The staff has issued only 243 walks, and that consistency has helped the Rays post an outstanding 34-14 record at home entering Sunday's matchup.

Injuries: Jake Fraley (10-Day IL), Gavin Lux (60-Day IL), Jesse Scholtens (15-Day IL), Steven Matz (15-Day IL), Manuel Rodriguez (60-Day IL).

Pitching Matchup

Seattle Mariners – Emerson Hancock

Hancock enters with a 6-4 record, a 3.23 ERA, and a 1.01 WHIP across 97.2 innings. The right-hander has allowed 75 hits and 12 home runs while striking out 92 batters and walking only 24. Hancock has consistently limited baserunners and has been one of Seattle's most dependable starters throughout the season.

Tampa Bay Rays – Ian Seymour

Seymour is 6-1 with a 4.11 ERA and a 1.08 WHIP over 61.1 innings. The left-hander has surrendered 45 hits while striking out 72 batters and issuing 21 walks. Seymour has also allowed nine home runs and enters the matchup backed by one of the American League's strongest home teams.

Seattle Mariners vs. Tampa Bay Rays Game Pick

  • Tampa Bay Rays

Tampa Bay enters this matchup playing better baseball and has been outstanding at Tropicana Field with a 34-14 home record. The Rays also own the stronger offense, batting .259 compared to Seattle's .230 mark, while Yandy Diaz, Junior Caminero, and Jonathan Aranda continue to produce throughout the lineup. Hancock has pitched well, but Tampa Bay's balanced lineup and home success make the Rays the pick.

Seattle Mariners vs. Tampa Bay Rays Over/Under Pick

  • Under

Both starting pitchers have put together solid seasons, with Hancock carrying a 3.23 ERA and Seymour limiting opponents to only 45 hits in 61.1 innings. Seattle has struggled offensively during its current four-game losing streak, while both pitching staffs rank among the better groups in the American League. With the Mariners finding runs difficult to come by and both teams capable of keeping hitters in check, the under is the play.

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