- Matchup: Seattle Mariners vs Tampa Bay Rays
- Date: Friday, July 10, 2026
- Venue: Tropicana Field, St. Petersburg, FL
- Broadcast: MLB.TV
- Betting Odds: Seattle (-144) Tampa Bay (+120)
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The Seattle Mariners (47-46) are traveling to Tropicana Field on Friday to take on the Tampa Bay Rays (54-36). The odds for this matchup favor Seattle at -144, while Tampa Bay is listed at +120. The over/under is set at 8.5 runs, with Luis Castillo and Nick Martinez taking the mound as starting pitchers.
The Mariners have compiled a total of 114 doubles and 110 home runs this season. With a slugging percentage of .379, the team has struck out 808 times and earned 309 walks. Averaging 4.1 runs per game, Seattle currently ranks 27th in the league. They’ve accumulated 364 RBIs and 709 hits, holding a team batting average of .230. Overall, Seattle has scored 377 runs with a .311 on-base percentage.
The Mariners boast a team ERA of 3.54, ranking 4th in the league, with a combined total of 802 strikeouts from their pitching staff. They have allowed 83 home runs and 353 runs this season (4th overall). Mariners pitchers have issued 230 walks and maintain a team FIP of 3.46. So far this year, they have surrendered 729 hits, averaging 8.0 hits per 9 innings, with a strikeout-to-walk ratio of 3.49 and a collective WHIP of 1.16.
Seattle’s bullpen has converted 59.5% of save opportunities, having entered 91 save situations. The team has recorded 22 saves and missed 15 of 37 attempts. This season, the bullpen inherited 89 runners, with 27.0% of them scoring. Mariners relievers have appeared in 65 situations with runners on base and have made 100 high-leverage appearances. The Mariners’ bullpen has sent 273 pitchers to the mound this year, achieving 53 holds, which ranks 11th in the league.
Seattle has accumulated 2,473 putouts, 756 assists, and 46 errors this season, leading to a fielding percentage of .986, placing them 16th in MLB. They’ve completed 82 double plays and successfully converted 69.8% of balls in play into outs across 7,419 innings, ranking 15th in major league baseball.
Castillo (87-91 career win-loss record) has a FIP of 3.57 after facing 6,189 batters in the majors. Allowing 1,291 hits (7.8 hits per 9 innings) and issuing 480 walks, he has a career ERA of 3.62 (601 earned runs allowed) and a WHIP of 1.187. Over 1,492 innings, Castillo has achieved 1,570 strikeouts in his career.
Tampa Bay, on the other hand, has recorded 87 home runs and 387 RBIs this season. The team has 125 doubles, drawing 320 walks, and scoring 406 runs. The Rays hold a .334 on-base percentage and a .257 batting average this year, with a slugging percentage of .395 and averaging 4.51 runs per game (ranked 16th). They have struck out 644 times (30th in MLB) and secured a total of 771 hits.
The Rays maintain a WHIP of 1.166, with a FIP of 4.11 as a pitching unit this year. They rank 5th in MLB for total hits allowed, having surrendered 698. The Tampa Bay pitching team has given up 370 runs this season, achieving a team ERA of 3.72 (332 earned runs). Their strikeout-to-walk ratio is an impressive 8.20 (731 strikeouts to 238 walks) while allowing 112 home runs and 4.15 runs per 9 innings (8th in MLB).
In save situations, Tampa Bay ranks 5th in the league with a 74.0% success rate. Their bullpen has made 284 pitching appearances this season, entering 92 high-leverage situations and 74 games with base runners. Out of 120 save opportunities, the Rays have achieved 70 holds with 13 blown saves. In 50 save chances, Tampa Bay relievers have tallied 37 saves, with an inherited run scoring rate of 24.8% from 105 inherited runners.
Across their 7,227 innings played, the Rays have a defensive efficiency of 71.9% (2nd in professional baseball). They’ve executed 58 double plays, and their fielding percentage stands at .983 (22nd in professional baseball). The team has totaled 724 assists, 54 errors, and 2,409 putouts this season.
During his professional baseball journey, Martinez has allowed 1,030 hits while notching 731 strikeouts over 1,040 innings pitched. With a career record of 55-61, Martinez has a 4.01 ERA and permits 8.9 hits per 9 innings, with 463 earned runs allowed, a WHIP of 1.286, and a FIP of 3.9. His strikeout-to-walk ratio is 2.38, having faced 4,395 opposing hitters throughout his career.
Who will emerge victorious in tonight’s MLB contest against the spread or moneyline?
Prediction: Bet on Seattle (-144)
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