Tampa Bay Rays vs Seattle Mariners Prediction, 8/9/2025 MLB Picks, Best Bets & Odds

Game: Tampa Bay Rays vs Seattle Mariners

Date: Saturday, August 9, 2025

Location: T-Mobile Park in Seattle, WA

TV: Root Sports Northwest

Odds/Point Spread: Tampa Bay (+120) Seattle (-144)

The Tampa Bay Rays (57-59) are hitting the road to T-Mobile Park on Saturday where they will take on the Seattle Mariners (62-53). The moneyline on this game has the Rays at +120 while the Mariners are coming in at -144. The total is 8.5. The pitchers who are expected to start are Joe Boyle and Logan Evans.

As a squad, the Tampa Bay Rays are recording 4.5 runs per outing, which has them at 12th in the league. They have 522 runs scored and hold an OBP of .315. The Rays have hit 173 two-baggers as a team and have knocked 126 balls out of the stadium. They have amassed 492 RBI's as well as 985 hits on the season, while their average at the plate is .252. Tampa Bay has a slugging percentage of .399 and have been rung up 982 times, while taking a walk on 344 occasions.

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The Rays have compiled a team earned run average of 3.86 on the season (13th in baseball), and their staff has struck out 980 batters. Rays pitchers have surrendered 147 home runs and also 475 runs (12th in MLB). They have walked 330 opposing players and their FIP is 4.16 as a squad over the course of the season. Tampa Bay has surrendered 917 base hits (8.0 per 9 innings) and also 441 earned runs. They have accrued a K/BB ratio of 2.97 and their pitching staff holds a collective WHIP of 1.21.

Rays relief pitchers have entered the contest with players on base 83 times as well as having 112 appearances in high leverage situations. The relievers have 65 holds for the year (15th in the league). The Rays relief pitchers have accumulated a save rate of 55.6% and have come into the game in 111 save situations. They have compiled 25 saves this season and have missed out on 20 of their 45 save chances. The relief pitchers have inherited 121 runners so far this season and 35.5% of those players earned a run for their team. The Rays have dispatched 364 relief pitchers to the hill so far this year.

The Tampa Bay Rays have notched a total of 3,086 putouts at this point in the season, as well as 1,032 assists and 54 errors. Their fielding percentage sits at .987 which ranks 10th in MLB, and have earned 111 double plays. The Rays have converted 70.9% of baseballs in play into outs out of their 9,258 innings, which has them sitting 8th in pro baseball.

Boyle has pitched in 90 innings and has 97 K's in his MLB career. Boyle (6-7 career record) holds a FIP of 4.32 while going up against 394 opposing batters during his time in the majors. His ERA is 4.39 (44 ER's allowed) and he has a WHIP of 1.318. He has surrendered 63 base hits (6.3 hits per nine innings) and has 56 walks.

The Mariners have a team slugging % of .412 and they average 4.58 runs per contest (10th in MLB). They have put up 154 two-baggers, while walking 390 times as well as scoring 527 runs. Seattle has recorded 164 long balls for the year to go along with 506 runs batted in. They have been rung up on 1,022 instances (4th in the league) and have totaled 958 base knocks. The Seattle Mariners are sitting with a team on-base percentage of .320 and a batting average of .244 so far this year.

The Seattle pitching staff have surrendered 498 runs on the year while holding a team ERA of 3.85 (446 earned runs conceded). They have allowed 133 home runs and they concede 4.30 runs per 9 innings (16th in the league). The Mariners have a team WHIP of 1.242 with a FIP of 4.05 as a unit so far this year. Their strikeout to walk ratio comes in at 8.40 (977 strikeouts against 348 walks). They have a ranking of 20th in the league as a staff in total hits given up with 946.

Seattle has called on relievers to enter the contest in 47 save chances and they have earned 28 saves. They rank 20th in baseball with a save percentage of 59.6%, and they have sent 383 bullpen pitchers to the hill for the season. Their bullpen pitchers have stepped onto the mound 160 times in high leverage situations and also on 96 occasions with runners on. Seattle bullpen pitchers have an inherited score percentage of 25.2% of 103 inherited base runners. With 108 save situations, the Mariners have 61 holds and 19 blown saves.

The Seattle Mariners have turned 87 double plays and have earned a fielding percentage of .989 (4th in pro baseball). The Mariners have 972 assists, 46 errors and have earned a total of 3,128 putouts this season. Out of their 9,384 innings played, the Mariners have accumulated a defensive efficiency of 70.7% (10th in the majors).

Evans (5-4 career mark) has earned a 4.30 ERA while surrendering 9.7 hits per 9 innings. His K/BB ratio is 2.30 and he has gone up against 300 batters so far in his career. He has surrendered 33 ER's while earning a WHIP of 1.406 and having a FIP of 4.2. During his pro baseball career, Evans has allowed 74 hits while totaling 53 strikeouts in 69 innings.

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

Tony Sink's Pick: Take Tampa Bay (+120)

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