- Matchup: Tampa Bay Rays vs Seattle Mariners
- Event Date: Sunday, August 9, 2026
- Venue: T-Mobile Park, Seattle, WA
- Broadcast: MLB.TV
- Betting Odds: Tampa Bay (+125) Seattle (-145)
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The Tampa Bay Rays (69-46) are heading to T-Mobile Park on Sunday to face off against the Seattle Mariners (56-61). The betting odds show the Rays at +125, while the Mariners sit at -145. The totals line is set at 8 runs. Starting pitchers for this contest will be Ian Seymour and Emerson Hancock.
The Rays have registered 165 doubles collectively and have launched 118 home runs throughout the season. Tampa Bay’s slugging percentage stands at .403, with 827 strikeouts and 378 walks logged this year. As a team, the Rays are averaging 4.5 runs per game, ranking 16th in Major League Baseball. They have recorded 487 RBIs and 990 hits, boasting a team batting average of .258. The Rays have scored 512 runs with a .329 on-base percentage.
The Rays’ pitching staff has generated a solid earned run average (ERA) of 3.71, ranking 6th in the league. Their pitchers have registered 943 strikeouts, allowed 142 home runs, and given up 470 runs (7th in MLB). Collectively, they have issued 299 walks, and their Fielding Independent Pitching (FIP) sits at 4.05. Over the season, Tampa Bay pitchers have yielded 877 hits, averaging 7.7 hits per 9 innings. Their strikeout-to-walk ratio is an impressive 3.15, complemented by a WHIP of 1.15.
This season, Rays relief pitchers have entered games with runners on base 95 times and have appeared in 114 high-leverage situations. The bullpen boasts 88 holds (ranked 2nd in baseball) and has a save rate of 76.7%, successfully converting 46 of 60 save opportunities. Out of 137 inherited runners, 27.7% have scored. Notably, a total of 366 relievers have taken the mound for the Rays this year.
In the field, the Rays have converted 72.2% of balls in play into outs across 9,225 innings, positioning them 2nd in MLB. They’ve recorded 3,075 putouts, 906 assists, and 67 errors, maintaining a fielding percentage of .983, which ranks 21st in the league. This season, they have completed 74 double plays.
Ian Seymour has pitched 141 innings, accumulating 163 career strikeouts with an ERA of 4.02 (63 earned runs). He holds a career WHIP of 1.148, having allowed 115 hits (7.3 hits per nine innings) and issued 47 walks. With a 12-6 career record, his FIP is 3.96 and he has faced 590 batters in Major League Baseball.
The Seattle Mariners have achieved a .309 on-base percentage and a .229 team batting average in 2026. They rank 12th in the league with 1,000 strikeouts and have managed 885 hits this season. The Mariners have hit 135 home runs, driving in 443 runs, while their slugging percentage stands at .375. They are averaging 3.92 runs per game (29th in MLB) and have recorded 141 doubles along with 384 walks, totaling 459 runs scored.
Seattle’s pitching staff has surrendered 474 runs this year, maintaining a team ERA of 3.81 (437 earned runs allowed). They’ve allowed 128 home runs and yield 4.13 runs per 9 innings, placing 8th in the league. The Mariners’ WHIP is 1.198, with a FIP of 3.76. Their strikeout-to-walk ratio is 8.70, having collected 999 strikeouts against 292 walks. They rank 15th in total hits allowed, with 946.
With 105 save opportunities, the Mariners’ bullpen has 60 holds and 18 blown saves. They’ve completed 44 save chances, recording 26 successful saves. Seattle’s relief pitchers have had a 31.8% scoring rate on inherited runners out of 110 total. They rank 20th in the league with a save percentage of 59.1%, deploying 347 relievers this season.
The Mariners have turned 99 double plays and maintain a fielding percentage of .986 (14th in the league). They have secured 946 assists, 58 errors, and accumulated 3,100 putouts this season. Their defensive efficiency stands at 69.7%, placing them 17th in professional baseball across 9,300 innings played.
In his professional career, Hancock has allowed 264 hits and amassed 217 strikeouts over 278 innings pitched. With a win-loss record of 14-15, he carries an ERA of 4.20, yielding 8.5 hits per 9 innings. Hancock has allowed a total of 130 earned runs and holds a WHIP of 1.243 and a FIP of 4.1. His K/BB ratio is 2.65, having faced 1,165 batters in his career.
Who will prevail in tonight’s MLB showdown against the spread or moneyline?
Prediction: Back Seattle (-145)
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