Seattle Mariners vs Tampa Bay Rays Picks and Prediction for Sunday July 12, 2026
Use Code SSWC The Seattle Mariners and Tampa Bay Rays wrap up their series on Sunday, July 12, 2026, at Tropicana Field in St. Petersburg, Florida. First pitch is scheduled for 1:40 p.m. ET, with television coverage on MLB.TV. Seattle enters the matchup with a 47-48 overall record and a 20-28 road record, while Tampa Bay brings a 55-37 record and an outstanding 34-14 home mark into the contest. At the time of this writing the odds were not released. ESPN Analytics gives the Rays a 59.4% chance of winning compared with 40.6% for the Mariners. Be sure to check out our free MLB picks.
Starting Pitchers
Seattle is scheduled to hand the ball to Emerson Hancock, who is 6-4 with a 3.23 ERA and a 1.01 WHIP over 97.2 innings. The right-hander has allowed 75 hits while striking out 92 and walking 24. He has surrendered 12 home runs this season. Tampa Bay is expected to counter with Ian Seymour, who enters with a 6-1 record, a 4.11 ERA, and a 1.08 WHIP across 61.1 innings. Seymour has allowed 45 hits while recording 72 strikeouts and issuing 21 walks, giving up nine home runs. Hancock owns the lower ERA and WHIP, while Seymour enters with the better win-loss record.
Seattle Looks to End Its Road Slide
The Mariners come into Sunday with a 47-48 overall record and a 20-28 mark away from home. Seattle has struggled recently, losing four of its last five games. The Mariners most recently fell to Tampa Bay 7-2 after dropping three straight games against Miami by scores of 8-4, 2-0, and 6-5 in 10 innings. Their lone victory during this stretch was a 4-0 win over Toronto.
Seattle is batting .230 with 383 runs, 721 hits, and 113 home runs. The Mariners own a .310 on-base percentage and a .379 slugging percentage. On the mound, Seattle has compiled a 3.61 ERA with a 1.18 WHIP while holding opponents to a .240 batting average. The pitching staff has recorded 812 strikeouts while issuing 236 walks. The Mariners are 19-15 in day games.
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Seattle’s greatest strength is its pitching. The Mariners have the lower team ERA and WHIP compared to Tampa Bay while also issuing fewer walks. Although the offense has scored only 383 runs this season, Seattle has remained competitive because its pitching staff has consistently limited baserunners and prevented opponents from generating large offensive numbers.
Tampa Bay Continues to Dominate at Home
The Rays enter the matchup with a 55-37 overall record and one of the league’s best home records at 34-14. Tampa Bay has gone 3-2 over its last five games. The Rays most recently defeated Seattle 7-2 after splitting a four-game series with the Yankees. During that stretch they recorded wins of 3-0 and 6-4 while suffering losses of 12-4 and 5-1.
Tampa Bay is batting .259 with 417 runs, 795 hits, and 92 home runs. The Rays have posted a .334 on-base percentage and a .401 slugging percentage. Their pitching staff owns a 3.79 ERA with a 1.17 WHIP while allowing opponents to bat .232. Tampa Bay has struck out 743 hitters while walking 243. The Rays are 20-17 in day games.
Tampa Bay’s biggest advantage is its overall balance and exceptional home performance. The Rays lead Seattle in batting average, runs scored, hits, on-base percentage, and slugging percentage while allowing opponents to hit just .232. Combined with a remarkable 34-14 home record, Tampa Bay has consistently found ways to win despite hitting fewer home runs than Seattle.
Seattle Mariners vs Tampa Bay Rays Picks and Prediction
Seattle Mariners vs Tampa Bay Rays Pick
- Pick: Tampa Bay Rays Moneyline
Tampa Bay is my moneyline selection based on its overall body of work this season. The Rays own the better overall record, the far superior home record, and the stronger offensive statistics. They also won the series opener 7-2 and enter with a 59.4% edge in the ESPN Analytics matchup predictor. While Seattle has the slight edge in team pitching statistics and the stronger statistical starting pitcher, Tampa Bay’s success at home and more productive lineup give the Rays the advantage.
Seattle Mariners vs Tampa Bay Rays Total Pick
- Pick: Take the under if the total is set at 7.5
I would take the under if the total is set at 7.5. Seattle owns a 3.61 team ERA, while Tampa Bay has posted a 3.79 ERA. The scheduled starters also enter with ERAs of 3.23 and 4.11, and both teams have relied on quality pitching for much of the season. Friday’s opener finished with nine total runs, but Seattle has also scored two runs or fewer in three of its last four games. With both pitching staffs producing solid season-long numbers, I like the under if the total is set at 7.5.
Final Score Prediction: Tampa Bay Rays 4 – Seattle Mariners 2
This prediction was written before the completion of game play on Saturday.
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