Tampa Bay Rays vs Seattle Mariners Prediction, Preview and Odds - 08/07/2026

Game Time: 9:45 pm ET, Friday, August 7, 2026

Venue:  T-Mobile Park, Seattle, WA 

Where to Watch:  Apple TV

DraftKings:  Moneyline odds:  Rays -102, Mariners -118; Over/Under:  7 runs

Bet365:  Moneyline odds:  Rays +100, Mariners -120; Over/Under:  7 runs

BetMGM:  Moneyline odds:  Rays +100, Mariners -120; Over/Under:  7 runs

Tampa Bay Rays:  68-46 (1st place, AL East)

Seattle Mariners:  56-60 (3rd place, AL West)

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Tampa Bay Rays:  7-3 last 10

Seattle Mariners:  4-6 last 10

The Rays are entering this series off a win and completed the sweep in their 3-game series against the Colorado Rockies 3-0 in their last series. They enter this game with a 68-46 record overall and have a road record of 27-28. This is the series opener of a 3-game series with the Mariners on Friday and they have Thursday off as a day of rest. Their offense ranks 8th in the MLB with a .732 OPS. Nick Martinez was their starting pitcher on Wednesday while Drew Rasmussen is making his start in this game on Friday. He is 10-5 with a 2.91 ERA this season. His team won their last 3 straight games this season with him making an appearance. In his last MLB regular season appearance, he allowed 0 ER, 0 HR, and 1 BB with 10 SO on 4 hits through 6 IP against the Chicago White Sox.

The Mariners are entering this series off a loss and lost their 3-game series against the Detroit Tigers 2-1 in their last series. They enter this game with a 56-60 record overall and have a home record of 33-26. This is the 1st game of a 3-game series with the Rays on Friday. Their offense ranks 27th in the MLB with a .688 OPS. Bryce Miller was their starting pitcher on Thursday while Logan Gilbert is making his start in this game on Friday. He is 8-6 with a 3.46 ERA this season. His team won their last 3 straight games this season with him making an appearance. In his last MLB regular season start, he allowed 3 earned runs, 2 homers, and 1 walk with 6 strikeouts on 5 hits through 7 innings pitched against the Minnesota Twins.

The current betting odds have the Rays listed as a slight underdog in this game according to Draftkings Sportsbook. The Rays have looked great in their games this season with their 68-46 record overall which has them right at the top of the AL East. They haven't been a great road team though with their 27-28 road record this year. Meanwhile, the Mariners haven't looked good in their games this season with their 56-60 record overall which has them right in the middle of the AL West. They have looked a lot better in their own ballpark though with their 33-25 home record this season. The Mariners are 4-6 in their last 10 games and they haven't looked good lately, sliding down the standings in their division. The Rays have steadily been one of the best teams in the league all season and they have been hot lately, now 7-3 in their last 10 games. They also have the much better offense, the Mariners having one of the worst offenses in the league, and the Rays are going to have the better pitching matchup too. The Rays are going with Rasmussen in this one and he has looked good this season. He is 10-5 with a 2.91 ERA and he hasn't been giving up many runs lately. He is coming off another great start giving up no runs which has been a common theme for him and the team has been having success with him too, winning 3 games in a row now with him starting. The Mariners are going with Gilbert in this one and he hasn't looked bad this year. He is 8-6 with a 3.46 ERA, but lately he has been giving up more runs. The team has won 3 games in a row now with him starting, but he did give up 3 earned runs in his last start and the Mariners haven't really had an offense lately to help him out. The Rays have been rolling lately with the better offense and one of the best pitching staffs in the league, look for them to take advantage of this pitching matchup. The best way to place a bet here is on the Rays to win this game. 

Rays Mariners Prediction:  Our MLB Pick for Friday, August 7, 2026 (9:45 pm ET start time) is Rays 4 Mariners 1.

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Tampa Bay Rays: 39-40 (-6.4 units) on the moneyline against AL West opponents. 100-116 (-7.4 units) on the moneyline in road games. 142-144 (-15.6 units) on the moneyline vs. an AL team with an on base percentage .330 or worse. 24-8 UNDER after shutting out their opponent.

Seattle Mariners: 136-91 (+15.6 units) on the moneyline in home games. 83-66 (+9.2 units) on the moneyline vs. an AL starting pitcher whose WHIP is 1.300 or better. 58-40 (+15.9 units) on the moneyline vs. an AL starting pitcher whose ERA is 3.70 or better. 8-4 UNDER at home vs. an AL starting pitcher whose WHIP is 1.300 or better.

Tampa Bay Rays:  J. Fraley (RF) Sixty Day IL - Groin. S. McClanahan (SP) Fifteen Day IL - Back. C. Wilcox (RP) Fifteen Day IL - Back. J. Heasley (RP) Sixty Day IL - Elbow. G. Lux (LF) Sixty Day IL - Shoulder. R. Pepiot (SP) Sixty Day IL - Hip. E. Uceta (RP) Sixty Day IL - Shoulder. S. Wilson (RP) Sixty Day IL - Back. M. Rodriguez (RP) Sixty Day IL - Elbow.

Seattle Mariners:  L. Raley (RF) Ten Day IL - Elbow. J. Crawford (SS) Ten Day IL - Wrist. W. Wilson (3B) Sixty Day IL - Thumb. M. Brash (RP) Fifteen Day IL - Lat. C. Criswell (RP) Sixty Day IL - Shoulder. C. Vargas (RP) Sixty Day IL - Lat. L. Evans (SP) Sixty Day IL - Arm.

“Kind of in the fire right there, two guys on in a three-run ballgame. Threw a bunch of strikes. Nasty stuff.” - Kevin Cash after his team’s win against the Rockies in their game on Wednesday. 

“Whatever it was, you know, who am I to judge any decisions that are made? The key there was that Julio put up a really good at-bat on that first pitch.” - Dan Wilson after his team’s win against the Tigers in their game on Wednesday.

Victor Mesa Jr. (L) RF

Jonathan Aranda (L) DH

Junior Caminero (R) 3B

Liam Hicks (L) 1B

Chandler Simpson (L) LF

Cedric Mullins (L) CF

Richie Palacios (L) 2B

Taylor Walls (S) SS

Nick Fortes (R) C

Taylor Ward (R) RF

Randy Arozarena (R) LF

Dominic Canzone (L) DH

Julio Rodríguez (R) CF

Cole Young (L) 2B

Weston Wilson (R) 1B

Jhonny Pereda (R) C

Leo Rivas (S) 3B

Colt Emerson (L) SS

Batting Average:  Yandy Díaz (.300)

Hits:  Yandy Díaz (127)

Home Runs:  Junior Caminero (33)

RBI:  Jonathan Aranda (71)

Stolen Bases:  Chandler Simpson (30)

Wins:  Nick Martinez (11)

Saves:  Bryan Baker (32)

ERA:  Tyler Wells (0.00)

Batting Average:  Randy Arozarena (.284)

Hits:  Randy Arozarena (112)

Home Runs:  Dominic Canzone (18)

RBI:  Cole Young (51)

Stolen Bases:  Josh Naylor (22)

Wins:  George Kirby (8)

Saves:  Andrés Muñoz (20)

ERA:  Matt Brash (0.54)

Managers:

Tampa Bay Rays: Kevin Cash (12th season)

Seattle Mariners: Dan Wilson (3rd season)