Houston Astros vs Seattle Mariners Prediction, 9/22/2026 MLB Picks, Best Bets & Odds

Game: Houston Astros vs Seattle Mariners

Date: Tuesday, September 22, 2026

Location: T-Mobile Park in Seattle, WA

TV: MLB.TV

Odds/Point Spread: Houston (+110) Seattle (-132)

T-Mobile Park is where the Seattle Mariners (73-83) will compete against the Houston Astros (77-79) on Tuesday. The odds on this game have Houston at +110 while Seattle is sitting at -132. The over/under comes in at 8.5. The pitchers who are expected to start are Cristian Javier and Logan Gilbert.

Houston has a slugging rate of .410 and have been rung up 1,282 times, while being walked on 502 occasions. They have earned 657 runs batted in and 1,255 hits on the year, while their team batting average sits at .240. The Astros have accounted for 228 doubles as a team and have smacked 209 baseballs out of the park. They have accounted for 688 runs scored while holding a team OBP of .313. As a team, the Houston Astros are scoring 4.4 runs per game, which has them at 19th in MLB.

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They have earned a strikeout to walk ratio of 2.17 and their pitching staff holds a collective WHIP of 1.34. Astros pitchers have given up 201 home runs in addition to 747 total runs (24th in MLB). Houston has surrendered 1,233 hits (8.0 per 9 innings) and also 696 earned runs. The Astros have compiled a team earned run average of 4.53 so far this year (24th in the league), and the staff has rung up 1,359 hitters. They have walked 626 opposing batters and their FIP comes in at 4.57 as a squad for the season.

Astros relief pitchers have entered the game with players on base 147 times as well as having 160 appearances in high leverage situations. The relievers have a total of 86 holds so far this year (12th in MLB). The Astros bullpen have a save rate of 78.7% and have entered the game in 149 save situations. They have tallied 48 saves on the campaign and have blown 13 of 61 chances to save the game. The relievers have inherited 222 base runners this year with 26.1% of those players earned a run for their team. The Astros have dispatched 506 relief pitchers to the mound on the year.

The Houston Astros have notched a total of 4,151 putouts at this point in the season, in addition to 1,155 assists and 70 errors. Their fielding percentage sits at .987 which puts them in 10th in pro baseball, and have accumulated 123 double plays. The Astros have converted 70.8% of baseballs in play into outs out of their 12,453 innings on the field, which has them ranked 9th in the majors.

Javier (37-28 career win-loss mark) holds a FIP of 3.77 and he has faced 2,484 batters in the majors. He has allowed 460 base hits (6.9 hits per nine innings) and has had 245 free passes. His earned run average is 3.83 (255 ER's allowed) and he has a WHIP of 1.177. Javier has pitched in 599 innings and has accounted for 655 punch outs so far in his MLB career.

Seattle is sitting with 179 home runs on the campaign to go along with 611 RBIs. They have 198 two-baggers, while taking a walk 526 times as well as scoring 634 runs. The Seattle Mariners have compiled a team on-base percentage of .312 as well as a team batting average of .232 so far this year. The Mariners hold a slugging % of .380 and they are earning 4.06 runs per game (28th in baseball). They have been rung up on 1,352 instances (9th in baseball) and have earned 1,202 base knocks.

The Seattle pitching staff have conceded 690 runs on the year while holding a team ERA of 4.19 (640 earned runs surrendered). They have given up 187 dingers and they surrender 4.52 runs per 9 innings (15th in the league). The Mariners are sitting with a team WHIP of 1.260 in addition to having a FIP of 3.99 as a team on the campaign. They have earned a strikeout to walk ratio of 8.70 (1,328 strikeouts against 415 walks). They have a ranking of 22nd in baseball as a pitching staff in total hits surrendered with 1,318.

Sitting with 144 save situations, the Mariners have recorded 80 holds and 28 blown saves. Seattle has had bullpen pitchers enter the game in 63 save opportunities and they have come away with 35 saves. Seattle bullpen pitchers hold an inherited score rate of 32.4% out of their 173 inherited runners. Their bullpen pitchers have come in 161 times in high leverage situations and on 123 occasions with base runners. They are currently ranked 25th in MLB with a save rate of 55.6%, and they have dispatched 482 bullpen pitchers to the hill on the year.

The Seattle Mariners have turned 121 double plays and have accounted for a fielding rate of .985 (18th in pro baseball). The Mariners have recorded 1,286 assists, 83 errors and have a tally of 4,126 putouts this year. In 12,378 innings on the diamond, the Mariners have accumulated a defensive efficiency of 68.9% (25th in the majors).

So far in his MLB career, Gilbert has given up 846 base hits while totaling 1,078 punch outs in 1,013 frames. He has given up 405 earned runs while holding a WHIP of 1.059 and being the owner of a FIP of 3.5. He has a strikeout to walk ratio of 4.75 and he has gone up against 4,090 opposing batters thus far in his career. Gilbert (59-46 mark in his career) is the owner of a 3.60 earned run average and has allowed 7.5 hits per 9 innings.

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

Tony Sink's Pick: Take Houston (+110)

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