Colorado Rockies vs Seattle Mariners Prediction 9/24/2025 Today’s MLB Picks

The Colorado Rockies and the Seattle Mariners meet Wednesday in MLB action from T-Mobile Park. We will look at this from a betting perspective and determine the best bets for this game. Here’s a Colorado Rockies vs. Seattle Mariners prediction.

Starting Pitching Matchup

The Colorado Rockies will send out Tanner Gordon for the start here and Gordon is 6-7 with a 6.00 ERA and 59 strikeouts this season. This will be Gordon’s first career start against the Mariners. Luis Castillo will get the start for Seattle here and is 10-8 with a 3.63 ERA and 152 strikeouts this season. In his last five starts against the Rockies, Castillo is 2-3 with a 5.72 ERA and 35 strikeouts.

Colorado Rockies Recap

The Colorado Rockies come into this game looking to rebound from a 4-3 loss at the hands of the Mariners last time out to slide to 43-114 this season. After this set, the Rockies will take to the road for a division set against the San Francisco Giants.

Rockies Looking For Some Consistency

Hunter Goodman leads the Rockies with 144 hits including 26 doubles, 5 triples, 30 home runs and 88 RBIs while Michael Toglia has 58 hits with 15 doubles, 11 home runs and 32 RBIs but also has 132 strikeouts. Kyle Farmer has 14 doubles while Jordan Beck has 15 home runs, 26 doubles, 52 RBIs, 5 triples and 17 stolen bases. Brenton Doyle has 113 hits with 21 doubles, 14 home runs, 56 RBIs and 17 stolen bases. Mickey Moniak has 114 hits with 18 doubles, 8 triples and 24 home runs with 68 RBIs. Tyler Freeman also has 106 hits with 20 doubles and 18 stolen bases so far this season.

Seattle Mariners Recap

The Seattle Mariners come into this game looking to add on to their win over Colorado from Tuesday to sit at 88-69 this season. After this series, the Mariners will square off against the Los Angeles Dodgers in an interleague series at home.

Mariners Pick Up 5th Straight Win

orge Polanco has 122 hits including 30 doubles, 24 home runs and 74 RBIs while Cal Raleigh has 141 hits with 22 doubles, a team-high 58 home runs and 121 RBIs. Randy Arozarena has 138 hits with 30 doubles, 27 home runs, 73 RBIs and 28 stolen bases. Julio Rodriguez also has 171 hits with 31 doubles, 4 triples, 31 home runs, 94 RBIs and 28 stolen bases. J.P Crawford has 148 hits with 24 doubles, 12 home runs and 58 RBIs.

Colorado Rockies @ Seattle Mariners Betting Trends: September 24, 2025

• Probable Starting Pitcher: Luis Castillo      Record this season: 10-8      ERA: 3.63
• Home Record: 4-4
• Last 5 against Rockies: 2-3

Why the Seattle Mariners will win

• The Mariners have won each of their last nine home games.
• The Rockies have lost 19 of their last 20 Wednesday night games against teams that held a winning record.
• The Mariners have covered the run line in each of their last six games as favorites after playing the previous day.
• The Rockies have failed to cover the run line in each of their last eight Wednesday games against American League opponents.
• The Mariners have led after 5 innings in eight of their last nine games as favorites.
• The Rockies have trailed after 3 innings in six of their last seven road games.

• Probable Starting Pitcher: Tanner Gordon      Record this season: 6-7      ERA: 6.00
• Road Record: 2-3
• Last 5 against Mariners: –

Why the Colorado Rockies will win

• The Rockies have won three of their last four games as underdogs against AL West opponents following a loss.
• The Mariners have lost three of their last four games as favorites against NL West opponents following a home win.
• The Mariners have failed to cover the run line in eight of their last nine games as home favorites against NL West opponents.
• The road team has covered the run line in each of the Mariners’ last five games.
• The Mariners have trailed after 3 innings in each of their last five night games against NL West opponents.

Total Runs Facts

• Each of the Rockies’ last five road games against American League opponents have gone UNDER the total runs line.
• Five of the last six games between the Rockies and Mariners at T-Mobile Park have gone UNDER the total runs line.
• The ‘Inning 1 OVER 0.5 runs’ market has hit in each of the Rockies’ last six Wednesday night games against AL West opponents.
• The ‘Inning 1 UNDER 0.5 runs’ market has hit in five of the last six games between the Rockies and Mariners.

Seattle Mariners Player Prop Facts

• Luis Castillo has recorded five or more strikeouts in each of his last 32 home appearances against NL opponents.
• Cal Raleigh has hit a home run in two of the Mariners’ last three games.
• Jorge Polanco has recorded at least one Double in eight of the Mariners’ last nine home games.
• Luis Castillo has recorded a win in five of his last six home appearances against NL opponents that held a losing record.
• Julio Rodriguez has recorded at least one hit in each of the Mariners’ last 12 Wednesday games.
• Cal Raleigh ranks 1st in the league in Home Runs (58) this season.

Colorado Rockies Player Prop Facts

• Tyler Freeman has recorded at least one hit in each of his last 14 appearances against AL opponents that held a winning record.
• Kris Bryant has hit a home run in three of his last six appearances in night games against AL teams that held a winning record.

Matchup/League Facts

• The Mariners rank 29th in the league for doubles this season (226).
• The Mariners rank 29th in the league for triples this season (9).
• The Rockies rank 30th in the league for on-base percentage this season (.295).
• The Rockies rank 30th in the league for walks this season (386).

Colorado Rockies vs. Seattle Mariners Prediction

I’m going to take a shot on the Rockies here. The Mariners clinched a playoff spot on Tuesday with their win and i just wonder if there’s going to be a bit of a hangover for the Mariners here. Tanner Gordon’s been a serviceable option for the Rockies on the road, and while the Mariners have business to tend to still, I think the Rockies could at least keep it close with the +1.5 if not win outright. Give me Colorado.