Seattle Mariners vs. Colorado Rockies Prediction, Odds & Pitching Matchup for September 24, 2025

Wednesday, September 24th, 2025

Colorado Rockies Visit Seattle Mariners: MLB Game Preview, Odds, and Key Matchups

The Colorado Rockies are set to face off against the Seattle Mariners at T-Mobile Park on Wednesday, September 24, 2025, at 8:40 PM local time. The Rockies aim to snap a three-game road losing streak, while the Mariners look to solidify their lead in the AL West.

Weather

At T-Mobile Park today, expect mostly cloudy skies with a high near 67°F. There's only a 10% chance of precipitation, so rain delays are unlikely. Light winds out of the west at 6 mph shouldn’t significantly affect play, making for pleasant baseball conditions.

Pitching Probables

The Rockies are slated to start Tanner Gordon (6-7, 6.00 ERA, 1.46 WHIP, 59 strikeouts). Taking the mound for the Mariners is Luis Castillo (10-8, 3.63 ERA, 1.23 WHIP, 152 strikeouts).

Betting Odds

The Mariners enter the matchup as heavy favorites at -332, while the Rockies come in at +264. The over/under for total runs is set at 7.5.

Team Records and Home/Away Performance

The Seattle Mariners boast an 88-69 overall record and are dominant at home with a 49-27 mark. Their success often hinges on their power hitting, posting a 44-19 record in games with two or more home runs.

The Colorado Rockies, sitting at the bottom of the NL West at 43-114 overall, have struggled on the road with an 18-58 record. Allowing home runs has been a major issue, as they are 21-94 in games where they’ve conceded at least one long ball.

Top Performers

For the Mariners, Cal Raleigh has been outstanding with 22 doubles and 58 home runs. Josh Naylor is hitting well lately, going 15 for 40 with three doubles and a home run in the past 10 games.

For the Rockies, Hunter Goodman is a key contributor, batting .279 with 26 doubles, five triples, and 30 home runs. Mickey Moniak has gone 13 for 37 with two doubles and five home runs over the last 10 games.

Recent Form: Last 10 Games

The Mariners are hot, winning nine of their last ten games. They’ve batted .262 as a team, posted a 2.83 ERA, and outscored opponents by 30 runs during this stretch.

The Rockies, by contrast, are 3-7 over their last ten outings, with a .245 team batting average and a 5.90 ERA. They’ve been outscored by 17 runs during this period.

Injuries

The Mariners are managing several injuries: Bryan Woo (day-to-day, pectoral), Jackson Kowar (15-Day IL, shoulder), Trent Thornton (60-Day IL, achilles), Logan Evans (15-Day IL, elbow), Gregory Santos (60-Day IL, knee), and Ryan Bliss (60-Day IL, biceps).

For the Rockies, key injuries include Tyler Freeman (day-to-day, back), Chase Dollander (15-Day IL, knee), Luis Peralta (15-Day IL, hip), Warming Bernabel (7-Day IL, concussion), Dugan Darnell (60-Day IL, hip), Thairo Estrada (60-Day IL, hamstring), Seth Halvorsen (15-Day IL, elbow), Zach Agnos (15-Day IL, hand), Kris Bryant (60-Day IL, lumbar), and Jeff Criswell (60-Day IL, elbow).

In summary

The Colorado Rockies face a tough challenge on the road against the first-place Seattle Mariners at T-Mobile Park. With favorable weather conditions and top performers like Cal Raleigh and Hunter Goodman on display, fans can expect an exciting MLB matchup. Betting odds favor the Mariners, who have been red-hot lately, while the Rockies look to break their road slump. For the latest updates and analysis on this Rockies vs. Mariners showdown, stay tuned.

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