Chicago Cubs vs Seattle Mariners Prediction, 8/23/2026 MLB Picks, Best Bets & Odds

Game: Chicago Cubs vs Seattle Mariners

Date: Sunday, August 23, 2026

Location: T-Mobile Park in Seattle, WA

TV: MLB.TV

Odds/Point Spread: Chicago (-130) Seattle (+110)

The Chicago Cubs (74-54) are on their way to T-Mobile Park on Sunday where they will attempt to beat the Seattle Mariners (60-68). The moneyline on this contest has Chicago at -130 while Seattle opens at +110. The betting total comes in at 9. The starting pitchers are Shota Imanaga and Bryan Woo.

As a team, the Chicago Cubs are earning 5.1 runs per game, which ranks them 2nd in MLB. They have tallied 656 runs while holding a team on-base percentage of .337. The Cubs have tallied 213 doubles as a squad and have hit 164 balls out of the park. They have amassed 617 RBI's and 1,089 base knocks on the season, and their team batting average is sitting at .248. Chicago has a slugging % of .418 and have struck out 1,100 times, while being walked on 544 occasions.

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The Cubs hold a team ERA of 4.14 this season (17th in MLB), and their staff has struck out 982 hitters. Cubs pitchers have allowed 192 home runs and 556 runs in total (12th in the league). They have walked 385 opposing players and their FIP sits at 4.69 as a unit so far this season. Chicago has conceded 1,057 hits (8.3 per 9 innings) in addition to 527 earned runs. Their K/BB ratio is 2.55 and the pitching staff sits with a WHIP of 1.26.

The Cubs have dispatched 412 relievers to the mound this season. The bullpen pitchers have inherited 178 runners so far this season with 30.9% of them crossing the plate. The relief pitchers have a total of 47 holds this year (30th in the league). Cubs bullpen pitchers have gone to the mound with opponents on base 129 times and also have had 123 appearances in high leverage situations. They have compiled 29 saves over the course of the season and have blown 20 of 49 chances to save the game. The Cubs relief pitchers have compiled a save rate of 59.2% and have come into the game in 102 save situations.

The Cubs have transformed 72.0% of balls hit into play into outs in their 10,302 innings, which has them ranked 2nd in pro baseball. The Chicago Cubs have a total of 3,434 putouts on the year, as well as 1,203 assists and 47 errors. Their fielding percentage is holding steady at .990 which is 1st in professional baseball, and have accumulated 100 double plays.

Imanaga has thrown 461 innings and is sitting with 431 strikeouts in his career. His ERA is 3.44 (176 ER's allowed) and he has a WHIP of 1.032. He has allowed 390 hits (7.6 hits per nine innings) with 86 walks. Imanaga (32-20 career record) has a FIP of 3.38 while he has faced 1,839 opposing hitters during his time in the majors.

Seattle has knocked in 145 home runs so far this year to go along with 483 RBIs. They have hit 156 two-baggers, while getting a free base 428 times and earning 500 runs. The Seattle Mariners have a team on-base percentage of .310 and a batting average of .230 for the year. The Mariners hold a team slugging % of .375 and they are scoring 3.91 runs per contest (30th in MLB). They have struck out on 1,103 instances (7th in baseball) and have earned 972 base knocks.

The Seattle pitching staff have allowed 546 runs for the year while holding an ERA of 4.00 (502 earned runs allowed). They have allowed 143 long balls and they concede 4.35 runs per 9 innings (10th in the league). The Mariners have a team WHIP of 1.228 with a FIP of 3.82 as a squad on the year. Their strikeout to walk ratio is 8.60 (1,085 strikeouts against 326 walks). They rank 19th in baseball as a staff in total hits relinquished with 1,060.

Seattle relievers hold an inherited score percentage of 29.9% of 127 inherited base runners. Their relievers have taken the field 132 times in high leverage situations and on 91 occasions with base runners. With 117 save situations, the Mariners have compiled 67 holds and also 20 blown saves. They are ranked 22nd in MLB with a save percentage of 59.2%, and they have dispatched 386 relievers to the mound on the season.

Out of their 10,161 innings on the diamond, the Mariners have earned a efficiency on defense of 69.2% (25th in the majors). The Seattle Mariners have gotten 104 double plays and hold a fielding percentage of .985 (17th in MLB). The Mariners have accrued 1,041 assists, 66 errors and are sitting with 3,387 putouts for the year.

Woo (37-23 career win-loss record) has a 3.44 ERA while allowing 7.2 hits per nine innings. He has a strikeout to walk ratio of 4.85 and he has faced 2,137 opposing hitters in his career. He has allowed a total of 204 ER's while holding a WHIP of 1.009 and having a FIP of 3.4. So far in his MLB career, Woo has surrendered 429 base knocks while he has tallied 529 punch outs in 533 innings.

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

Josh Schonwald's Pick: Take Seattle (+110)

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