Aug 8, 2026; Seattle, Washington, USA; Seattle Mariners manager Dan Wilson (6) interacts with home plate umpire umpire Emil Jimenez (82) after being ejected during the sixth inning against the Tampa Bay Rays at T-Mobile Park. Mandatory Credit: Steven Bisig-Imagn Images
IMAGN IMAGES via Reuters Connect

Tampa Bay Rays vs Seattle Mariners Prediction 8/9/2026 Today’s MLB Picks

Pick details

MATCHUP Tampa Bay Rays Seattle Mariners
Team Records 70-46 56-62
Where T-Mobile Park, Seattle, Washington
When Sunday, August 9, 2026
Time 04:10 PM EDT
TV MLB.TV

The Tampa Bay Rays and Seattle Mariners meet Sunday in MLB action at T-Mobile Park. Here’s a Tampa Bay Rays vs Seattle Mariners Prediction. This article will include a Tampa Bay Rays vs Seattle Mariners Pick.

Tampa Bay Rays Betting Preview


The Tampa Bay Rays are 70-46 on the year and play the Orioles and Athletics next. The Tampa Bay Rays are batting .258 on the season, have a .329 OBP, and have a .403 slugging percentage. The Tampa Bay Rays’ pitching staff has a 3.71 ERA and a 1.15 WHIP. Yandy Diaz leads the Tampa Bay Rays with 127 hits and 64 RBI, while Jonathan Aranda and Junior Caminero have combined for 243 hits and 143 RBI.

Ian Seymour gets the ball for the Tampa Bay Rays, and he is 8-3 with a 4.27 ERA and 99 strikeouts this season. Seymour is 0-1 with an 8.44 ERA and 5 strikeouts in his career against the Seattle Mariners.

Seattle Mariners Betting Preview


The Seattle Mariners are 56-62 on the year and play the Astros and Yankees next. The Seattle Mariners are batting .229 on the season, have a .309 OBP, and have a .375 slugging percentage. The Seattle Mariners’ pitching staff has a 3.81 ERA and a 1.20 WHIP. Randy Arozarena leads the Seattle Mariners with 113 hits and 49 RBI, while Cole Young and Josh Naylor have combined for 221 hits and 91 RBI.

Emerson Hancock gets the ball for the Seattle Mariners, and he is 6-6 with a 3.33 ERA and 108 strikeouts this season. Hancock is 0-0 with a 3.86 ERA and 4 strikeouts in his career against the Tampa Bay Rays.

Matchup/League Facts

  • The Mariners rank 1st in the league for walks allowed this season (292).
  • The Mariners rank 29th in the league for runs scored this season (459).
  • The Rays are one of only two teams in the league to rank top 10 in both strikeouts and on-base percentage this season.
  • The Rays rank 2nd in the league for walks allowed this season (299).

Tampa Bay Rays vs Seattle Mariners Prediction


The Mariners have the edge on the bump with Hancock and his 3.33 ERA and 1.07 WHIP. However, the Rays continue to play the more consistent ball and deserve more love from oddsmakers. The problem is the Rays aren’t a sexy team and don’t get a lot of backing from the public, so we keep getting these soft lines. I’ll continue to back the Rays as they keep winning games, and we don’t have to lay crazy prices. Give me the Rays yet again.

Randy Chambers's Pick: Tampa Bay Rays

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