Colorado Rockies vs Seattle Mariners Prediction, 9/25/2025 MLB Picks, Best Bets & Odds

Game: Colorado Rockies vs Seattle Mariners

Date: Thursday, September 25, 2025

Location: T-Mobile Park in Seattle, WA

TV: Root Sports Northwest

Odds/Point Spread: Colorado (+126) Seattle (-152)

The Colorado Rockies (43-114) are hitting the road to T-Mobile Park on Thursday where they will take on the Seattle Mariners (88-69). The line on this contest has Colorado at +126 while Seattle is at -152. The betting total comes in at 9. The expected starting pitchers will be Bradley Blalock and Emerson Hancock.

The Rockies have tallied 247 two-baggers as a unit and have knocked 155 balls out of the stadium. Colorado has a slugging percentage of .388 and have struck out 1,473 times, while drawing a walk on 386 occasions. As a unit, the Colorado Rockies are notching 3.7 runs per outing, which has them at 29th in MLB. They have accumulated 571 RBI's in addition to 1,253 hits for the year, and their average at the plate is sitting at .239. They are sitting with 587 runs scored and have an OBP of .295.

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The Rockies have an earned run average of 5.98 on the campaign (30th in MLB), and their staff has rung up 1,062 hitters. Rockies pitchers have given up 240 home runs and 992 runs (30th in baseball). They have walked 534 opposing batters and their FIP sits at 5.20 as a squad on the season. Colorado has allowed 1,631 base hits (10.7 per 9 innings) as well as 908 earned runs. Their strikeout to walk ratio is 1.99 and the pitching staff holds a collective WHIP of 1.58.

The Rockies have sent 516 relievers to the mound on the season. The relief pitchers have inherited 270 runners on the year and 35.6% of them earned a run for their team. They have recorded 29 saves so far this year and have blown 25 out of their 54 save opportunities. The Rockies relief pitchers have a save percentage of 53.7% and have stepped onto the mound in 115 save situations. The relief pitchers are sitting with 61 holds for the season (30th in baseball). Rockies relief pitchers have come into the game with runners on base 157 times as well as having 139 appearances in high leverage situations.

The Rockies have converted 65.9% of balls hit into play into outs out of their 12,306 innings on the field, which has them sitting at 30th in MLB. The Cleveland Guardians have 4,102 putouts for the season, as well as 1,429 assists and 108 errors. Their fielding percentage is at .981 which has them sitting 29th in pro baseball, and have accumulated 154 double plays.

Blalock (3-8 win-loss record in his career) is the owner of a FIP of 7.91 while he has faced 402 opposing batters in the majors. He has surrendered 114 base hits (12.0 hits per 9 innings) and has had 41 free passes. His ERA is 8.03 (76 ER's allowed) and he has a WHIP of 1.819. Blalock has pitched in 85 frames and has racked up 46 punch outs during his MLB career.

The Mariners hold a slugging % of .420 and they have an average of 4.75 runs per game (11th in MLB). They have recorded 226 doubles, while taking a walk 529 times as well as putting up 745 runs. Seattle has 231 home runs so far this season to go along with 714 runs batted in. They have struck out on 1,391 occasions (6th in the league) and have earned a total of 1,300 base knocks. The Seattle Mariners have accounted for a team OBP of .320 as well as a team batting average of .244 for the year.

The Seattle pitching staff have yielded 676 runs on the campaign while having an ERA of 3.88 (611 earned runs yielded). They have yielded 186 homers and they yield 4.29 runs per 9 innings (12th in the league). The Mariners hold a team WHIP of 1.228 and are the owners of a FIP of 4.00 as a squad this year. Their strikeout to walk ratio is 8.70 (1,372 strikeouts vs 442 walks). They come in at 17th in baseball as a pitching staff in total hits given up with 1,299.

Seattle relievers hold an inherited score percentage of 25.7% out of their 144 inherited runners. Their bullpen pitchers have stepped onto the hill 215 times in high leverage situations in addition to 130 occasions with runners on. Sitting with 158 save situations, the Mariners have 90 holds and 25 blown saves. They rank 17th in baseball holding a save rate of 63.2%, and they have dispatched 534 relievers onto the field for the year. Seattle has called on relievers to take the mound in 68 save opportunities and they have earned 43 saves.

The Seattle Mariners have gotten 117 double plays and have notched a fielding percentage of .988 (8th in pro baseball). The Mariners have 1,324 assists, 69 errors and are sitting with 4,253 putouts for the season. Out of their 12,759 innings played, the Mariners have earned a defensive efficiency of 70.2% (12th in pro baseball).

Hancock (8-9 win-loss mark in his career) is the owner of a 4.95 ERA while giving up 9.4 hits per 9 innings. He has a K/BB ratio of 1.92 and he has faced 686 hitters thus far in his career. He has given up a total of 87 earned runs while holding a WHIP of 1.384 and being the owner of a FIP of 4.9. In his MLB career, Hancock has surrendered 166 base knocks while accumulating 102 punch outs in 158 innings.

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

Tony Sink's Pick: Take Colorado (+126)

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