On Friday, a series opener is on the schedule, with the Seattle Mariners (62-53) hosting the Tampa Bay Rays (57-59) at 9:40 p.m. ET.
The Rays are an underdog away (+114) versus the Mariners (-135). The matchup on the mound for this contest is set with the Seattle Mariners looking to Luis Castillo (8-6), and Drew Rasmussen (9-5) answering the bell for the Tampa Bay Rays.
The Mariners were vicotrious 8-6 over the White Sox Wednesday in their most recent game. George Kirby was named the winning pitcher after throwing six innings, giving up two earned runs on five hits while striking out nine, while Josh Naylor finished 2 for 3 with a home run and two RBIs to lead them offensively.
The Rays took down the Angels 5-4 Wednesday. Junior Caminero led the way offensively after going 2 for 4 with two home runs and three RBIs, and Garrett Cleavinger got the win, pitching one inning without giving up a hit or an earned run while striking out one.
Ahead of watching this Mariners vs. Rays matchup, here is everything you need to know about Friday’s action on the diamond, including viewing options.
Seattle Mariners vs. Tampa Bay Rays odds, line and spread
MLB odds courtesy of BetMGM Sportsbook. Odds updated Thursday at 6:19 p.m. ET. For a full list of sports betting odds, access USA TODAY Sports Betting Scores Odds Hub.
Favorite: Mariners (-135, bet $135 to win $100)Underdog: Rays (+114, bet $100 to win $114)Over/under: 7.5Mariners vs. Rays: Game time and live stream infoGame day: Friday, August 8, 2025Game time: 9:40 p.m. ETLocation: Seattle, WashingtonStadium: T-Mobile ParkTV channel: ROOT Sports NW and FDSSUNLive stream: Watch LIVE with Fubo! (Regional restrictions may apply)
Watch Mariners vs. Rays on Fubo!
Mariners stats and trendsMariners betting recordsThis season, the Mariners have been favored 77 times and won 42, or 54.5%, of those games.Seattle has entered 44 games this season favored by -135 or more and is 25-19 in those contests.Bookmakers have implied with the moneyline set for this matchup that the Mariners have a 57.4% chance to win.Seattle and its opponents have hit the over in 61 of its 115 games with a total this season.The Mariners are 49-66-0 ATS in their 115 games with a spread this season.Luis Castillo (Mariners probable starter)Castillo (8-6 with a 3.22 ERA and 115 strikeouts in 131 1/3 innings pitched) gets the start for the Mariners, his 24th of the season.His most recent time out was on Saturday against the Texas Rangers, when the righty went 4 1/3 innings, surrendering two earned runs while giving up four hits.In 23 games this season, the 32-year-old has amassed a 3.22 ERA and 7.9 strikeouts per nine innings, while giving up a batting average of .243 to opposing batters.Castillo has 13 quality starts under his belt this year.Castillo is trying to collect his 22nd start of five or more innings this year in this game.In six of his 23 total appearances this season he has not allowed an earned run.He will face a Rays offense that ranks ninth in MLB with 985 total hits (on a .252 batting average). The squad also slugs a collective .399 (16th in MLB) with 126 total home runs (15th in MLB).Among qualifying pitchers in MLB play this season, the 32-year-old’s 3.22 ERA ranks 25th, 1.211 WHIP ranks 31st, and 7.9 K/9 ranks 38th.Mariners batting statsThe Mariners’ 164 home runs rank third in Major League Baseball.Fueled by 324 extra-base hits, Seattle ranks 10th in MLB with a .412 slugging percentage this season.The Mariners’ .244 batting average ranks 17th in the league this season.Seattle has scored the 10th-most runs in the majors this season with 527.The Mariners are among the best in the league at getting on base, ranking 10th with an OBP of .320.Seattle is one of the least-disciplined teams at the plate this season, ranking 27th with an average of 8.9 strikeouts per game.Rays stats and trendsRays betting recordsThe Rays have been chosen as underdogs in 57 games this year and have walked away with the win 24 times (42.1%) in those games.This season, Tampa Bay has been victorious 15 times in 28 chances when named as an underdog of at least +114 or worse on the moneyline.Bookmakers have implied with the moneyline set for this matchup that the Rays have a 46.7% chance of pulling out a win.Tampa Bay and its opponents have hit the over in 45 of its 116 games with a total set by oddsmakers this season.The Rays are 52-64-0 against the spread in their 116 games that had a posted line this season.Drew Rasmussen (Rays probable starter)Rasmussen will look to secure his 10th win when he gets the start for the Rays, his 23rd of the season. He is 9-5 with a 2.81 ERA and 93 strikeouts in 105 2/3 innings pitched.In his last time out on Saturday, the righty threw 5 1/3 scoreless innings against the Los Angeles Dodgers while surrendering four hits.In 22 games this season, the 30-year-old has a 2.81 ERA and 7.9 strikeouts per nine innings, while giving up a batting average of .218 to opposing batters.Rasmussen is trying to pick up his fifth quality start of the season in this matchup.Rasmussen will try to last five or more innings for his third straight appearance. He’s averaging 4.8 frames per outing.He has held his opponents without an earned run in eight of his 22 appearances this season.He will take the mound against a Mariners team that is batting .244 as a unit (17th in the MLB). They are also slugging a collective .412 (10th in the league) with 164 total home runs (third in MLB play).Rays batting statsThe Rays average 1.1 home runs per game to rank 15th in MLB play with 126 total home runs.So far this year, Tampa Bay ranks 16th in the majors with a .399 slugging percentage.The Rays have the ninth-best batting average in the league (.252).Tampa Bay scores the 11th-most runs in baseball (522 total, 4.5 per game).The Rays’ .315 on-base percentage ranks 19th in the majors.