Tampa Bay Rays vs Seattle Mariners Prediction, 8/8/2026 MLB Picks, Best Bets & Odds

Game: Tampa Bay Rays vs Seattle Mariners

Date: Saturday, August 8, 2026

Location: T-Mobile Park in Seattle, WA

TV: MLB.TV

Odds/Point Spread: Tampa Bay (+102) Seattle (-122)

The Seattle Mariners (56-60) are hosting the Tampa Bay Rays (68-46) at T-Mobile Park on Saturday. The odds on this game have the Rays at +102 while the Mariners are priced at -122. The total comes in at 9. The pitchers taking the mound will be Griffin Jax and George Kirby.

As a team, the Tampa Bay Rays are putting up 4.5 runs per game, which ranks them 15th in the league. They have 510 runs scored and have an on-base percentage of .329. The Rays have recorded 164 doubles as a squad and have knocked 116 baseballs out of the stadium. They have accrued 485 RBI's as well as 984 hits this season, and their batting average is at .258. Tampa Bay has a slugging percentage of .403 and have struck out 819 times, while taking a walk on 373 occasions.

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The Rays have an earned run average of 3.74 on the year (7th in the league), and the staff has rung up 931 batters. Rays pitchers have conceded 141 long balls and also 469 runs in total (7th in the league). They have walked 297 opposing batters and their FIP is 4.06 as a squad for the year. Tampa Bay has conceded 873 base hits (7.7 per 9 innings) and 422 earned runs. They have a strikeout to walk ratio of 3.13 and their pitching staff has a team WHIP of 1.15.

The Rays have sent 363 relief pitchers to the mound for the season. The bullpen pitchers have inherited 135 runners so far this season with 28.1% of them crossing the plate. The bullpen have accumulated 86 holds for the season (2nd in the league). Rays pitchers have stepped onto the hill with opponents on base 94 times in addition to having 111 appearances in high leverage situations. They have earned 45 saves over the course of the season and have blown 14 of their 59 save opportunities. The Rays relief pitchers have earned a save rate of 76.3% and have come into the game in 145 save situations.

The Rays have turned 72.1% of balls hit into play into outs out of 9,144 innings on the diamond, which has them sitting at 2nd in MLB. The Tampa Bay Rays have accounted for 3,048 putouts on the campaign, as well as 901 assists and 67 errors. Their fielding percentage sits at .983 which puts them in 21st in the majors, and they have turned 74 double plays.

Jax has taken the ball for 447 innings and has earned 505 K's in his career. His earned run average is 3.96 (197 earned runs allowed) and his career WHIP is 1.167. He has allowed 388 base knocks (7.8 hits per nine innings) with 134 free passes. Jax (29-40 career mark) holds a FIP of 3.90 while going up against 1,862 opposing hitters in the majors.

The Seattle Mariners have an on-base percentage of .310 in addition to a batting average of .230 this year. They have struck out on 988 instances (13th in baseball) and have tallied 881 base knocks. Seattle has accumulated 134 long balls on the campaign as well as 442 runs batted in. The Mariners hold a slugging % of .377 and they score 3.95 runs per game (29th in MLB). They have recorded 141 two-baggers, while walking 382 times as well as notching 458 runs.

The Mariners hold a team WHIP of 1.198 in addition to having a FIP of 3.75 as a squad on the year. Their K/BB ratio comes in at 8.70 (991 strikeouts vs 287 bases on balls). They are currently ranked 15th in the league as a staff in total hits allowed with 940. They have yielded 126 long balls and they allow 4.15 runs per 9 innings (7th in baseball). The Seattle pitching staff have relinquished 472 runs for the season while holding an ERA of 3.82 (435 earned runs relinquished).

Seattle bullpen pitchers have an inherited score percentage of 32.4% out of their 108 inherited runners. Their relievers have come in 116 times in high leverage situations and also on 79 occasions with runners on. With 105 save situations, the Mariners have accumulated 60 holds in addition to 18 blown saves. They are ranked 19th in the league holding a save rate of 59.1%, and they have dispatched 344 bullpen pitchers onto the field so far this season.

Out of their 9,219 innings on the diamond, the Mariners have accumulated a efficiency on defense of 69.6% (17th in professional baseball). The Seattle Mariners have gotten 98 double plays and have notched a fielding percentage of .986 (15th in pro baseball). The Mariners have 939 assists, 58 errors and have a tally of 3,073 putouts on the campaign.

Kirby (53-43 record in his career) has earned a 3.62 ERA while giving up 8.9 hits per 9 innings. He has a K/BB ratio of 6.14 and he has faced 3,124 batters during his MLB career. He has given up a total of 307 ER's while holding a WHIP of 1.140 and having a FIP of 3.6. In his career, Kirby has surrendered 752 base hits while he has tallied 731 K's in 764 frames.

Who will win tonight's MLB game against the spread or moneyline?

Josh Schonwald's Pick: Take Tampa Bay (+102)

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