- Matchup: Seattle Mariners vs Houston Astros
- Date: Monday, May 11, 2026
- Venue: Daikin Park, Houston, TX
- Broadcast: Space City Home Network
- Betting Odds: Seattle (-182) Houston (+150)
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The Seattle Mariners (19-21) are set to face the Houston Astros (16-24) at Daikin Park this Monday. The betting line has the Mariners favored at -182, while the Astros stand at +150. The over/under for the game is 8 runs, with George Kirby and Tatsuya Imai as the starting pitchers.
On average, the Seattle Mariners are scoring 4.2 runs per game, ranking them 23rd in the league. They have a total of 166 runs to date and maintain an on-base percentage of .320. The team has 51 doubles and 46 home runs this season, along with 161 RBIs and 302 hits, leading to a team batting average of .230. Their slugging percentage stands at .379 with 367 strikeouts compared to 155 walks.
The Mariners have a strikeout-to-walk ratio of 3.42, and their pitching rotation has a collective WHIP of 1.24. They have allowed 42 home runs and 163 runs this season, placing them 7th in the league. Seattle’s pitching staff has given up 343 hits, averaging 8.7 hits per 9 innings, and has conceded 151 earned runs, resulting in an ERA of 3.81, ranking 8th in the league. The Mariners have struck out a total of 335 batters, with 98 walks, and their FIP for the season stands at 3.82.
The Mariners’ bullpen has a save rate of 68.8%, having faced 36 save opportunities this season, converting 11 successfully while missing 5. They have inherited 41 runners, with 12.2% scoring. This year, the Mariners’ bullpen has appeared in 49 high-pressure situations and utilized 125 relievers, achieving 20 holds (21st in MLB).
Seattle’s defense has recorded 1,069 putouts, 340 assists, and 15 errors this season, achieving a fielding percentage of .989, placing them 6th in Major League Baseball. They have successfully turned 41 double plays and have converted 68.6% of balls in play into outs over 3,207 innings, ranking them 25th overall in the majors.
George Kirby, with 689 career innings pitched, has accumulated 660 strikeouts. His career ERA is 3.54 (271 earned runs), with a WHIP of 1.111. He has allowed 661 hits (8.6 hits per nine innings) and has issued 105 walks, holding a career record of 49-36 and a FIP of 3.49 against 2,805 batters faced.
The Houston Astros have an impressive slugging percentage of .436 and average 4.90 runs per game, ranking 8th in the league. They have registered 77 doubles, 196 runs scored, and knocked 52 home runs with 186 RBIs this season. The Astros have struck out 310 times (23rd in MLB) while collecting a total of 356 hits. Their on-base percentage is .337, and they maintain a team batting average of .261.
This season, the Houston pitching staff has allowed 225 runs, resulting in a team ERA of 5.57 (216 earned runs). They’ve issued 53 home runs and are allowing 5.80 runs per 9 innings, which places them at the bottom of the league (30th). The Astros’ WHIP stands at 1.593 with a FIP of 5.03 for the pitching staff overall. Their strikeout-to-walk ratio is currently 9.20 with 357 strikeouts against 205 walks, ranking 26th for total hits allowed (351).
In terms of save opportunities, the Astros have recorded 22 chances, with 13 holds and only 1 blown save. Houston’s bullpen has delivered 8 saves from 9 save situations and holds an inherited score percentage of 28.0% from 75 inherited runners. Their bullpen pitchers have entered 29 high-pressure scenarios and faced runners on base 44 times, boasting an 88.9% save success rate, ranking 1st in MLB.
Across 3,144 innings played, the Astros have a defensive efficiency of 67.5% (28th in MLB), with 38 double plays and a fielding percentage of .989 (7th in the league). They have made 299 assists, recorded 15 errors, and achieved 1,048 putouts this season.
Tatsuya Imai has given up 7 hits in his MLB career with 13 strikeouts over 8 innings. Holding a 1-0 career record, Imai has an ERA of 7.68, allowing 7.7 hits per nine innings. He has surrendered a total of 7 earned runs, with a WHIP of 2.195 and a FIP of 7.6, boasting a K/BB ratio of 1.18 against 44 batters faced in his career.
Who will come out on top in tonight’s exciting MLB matchup against the spread or moneyline?
Expert Prediction: Back Seattle (-182)
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