- Matchup: Tampa Bay Rays vs Seattle Mariners
- Date: Saturday, August 8, 2026
- Venue: T-Mobile Park, Seattle, WA
- Broadcast: MLB.TV
- Betting Line: Tampa Bay (+102) Seattle (-122)
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The Seattle Mariners (56-60) are set to face off against the Tampa Bay Rays (68-46) at T-Mobile Park this Saturday. The betting odds favor the Rays at +102 while the Mariners are listed at -122. The total runs for this matchup is set at 9. The starting pitchers are Griffin Jax for the Rays and George Kirby for the Mariners.
As a unit, the Tampa Bay Rays are averaging 4.5 runs per game, placing them 15th in the league. They have scored a total of 510 runs, with an on-base percentage of .329. The Rays have recorded 164 doubles and hit 116 home runs so far this season. They have tallied 485 RBIs and achieved 984 hits, leading to a batting average of .258. With a slugging percentage of .403, they have struck out 819 times while drawing 373 walks.
On the pitching side, the Rays have an earned run average (ERA) of 3.74, ranking them 7th in the league, and have struck out 931 batters. They have allowed 141 home runs and a total of 469 runs this season, which also places them 7th in the league. The pitching staff has walked 297 batters with a FIP of 4.06. They have allowed 873 hits (7.7 per 9 innings) and 422 earned runs. Their strikeout-to-walk ratio stands at 3.13, and their team WHIP is 1.15.
This season, the Rays have called upon 363 relief pitchers. Together, they have inherited 135 runners, with a 28.1% scoring rate. The bullpen has accumulated 86 holds (2nd in the league) and stepped in with opponents on base 94 times, alongside 111 high-leverage appearances. They have successfully saved 45 of their 59 opportunities, resulting in a 76.3% save rate in 145 save situations.
Defensively, the Rays have turned 72.1% of balls in play into outs over 9,144 innings, placing them 2nd in MLB. With 3,048 putouts, 901 assists, and 67 errors, their fielding percentage is .983, ranking 21st in the majors. They have executed 74 double plays this season.
Griffin Jax has pitched 447 innings, accumulating 505 strikeouts in his career with a 3.96 ERA (197 earned runs). His career WHIP is 1.167, allowing 388 hits (7.8 hits per nine innings) while issuing 134 walks. Holding a career record of 29-40, his FIP stands at 3.90 against 1,862 batters faced in the majors.
The Mariners, on the other hand, have an on-base percentage of .310 and a batting average of .230 this year. They rank 13th in the league with 988 strikeouts and have recorded 881 hits. Their offense, featuring 134 home runs and 442 RBIs, averages 3.95 runs per game (29th in MLB) with 141 doubles and 382 walks drawn.
With a team WHIP of 1.198 and a FIP of 3.75, their strikeout-to-walk ratio is 8.70 (991 strikeouts vs. 287 walks). Ranking 15th in hits allowed, the Mariners have given up 940 hits and 126 home runs, allowing 4.15 runs per 9 innings (7th in baseball). They have surrendered 472 runs this season with an ERA of 3.82 (435 earned runs).
The Seattle bullpen has an inherited scoring percentage of 32.4% from their 108 inherited runners. They have been called into high-leverage situations 116 times and pitched with runners on base 79 times. Out of 105 save situations, they have tallied 60 holds and blown 18 saves, yielding a save rate of 59.1% and utilizing 344 bullpen pitchers this season.
Over their 9,219 innings of play, the Mariners have an efficiency rate of 69.6% (17th in professional baseball). Their defense has executed 98 double plays and recorded a fielding percentage of .986 (15th in the majors), with 939 assists, 58 errors, and 3,073 putouts accumulated this season.
George Kirby, holding a 53-43 career record, has a 3.62 ERA while allowing 8.9 hits per 9 innings. He boasts a K/BB ratio of 6.14 and has faced 3,124 batters in his MLB career, yielding 307 earned runs with a WHIP of 1.140 and a FIP of 3.6. Kirby has allowed 752 hits and has accumulated 731 strikeouts over 764 innings pitched.
Who will come out victorious in this MLB face-off? Will it be against the spread or moneyline?
Prediction: Take Tampa Bay (+102)
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