In this article, we will formulate a Rockies vs Mariners Prediction for this MLB game on Wednesday, September 24th at the T-Mobile Park in the second game of this series, with the Mariners having the 1-0 lead. Let’s take a look at the prediction for this MLB matchup.
Seattle Mariners Preview
The Seattle Mariners have an 88-69 record this season and are sitting on the second place of the AL West. The Mariners have a 49-27 home record and are 86-67 in over/under. They are coming off a 4-3 home victory over the Rockies, and have 9 consecutive wins. They are playing the Dodgers next.
The Mariners have a .244 batting average this season, .320 OBP and .420 Slugging percentage. Seattle’s pitching staff has a 3.88 ERA and 1.23 WHIP. Julio Rodriguez leads the Mariners in hits with 171, and he is the team’s best hitter with a .268 batting average. Cal Raleigh leads the team both in RBI with 121, and in home runs with 58.
Luis Castillo (R) is the projected starting pitcher for the Mariners, and he has a 10-8 record, 3.63 ERA and 1.23 WHIP.
Colorado Rockies Preview
The Colorado Rockies have a 43-114 record this season and are sitting on the last place of the NL West. The Rockies have a 18-58 road record and are 69-83 in over/under. They are coming off a 3-4 road defeat by the Mariners, and are 2-7 in their last 9 games. Over is 6-3 in their last 9 games, and are playing the Giants next.
The Rockies have a .239 batting average this season, .295 OBP and .388 Slugging percentage. Colorado’s pitching staff has a 5.98 ERA and 1.58 WHIP. Hunter Goodman leads the Rockies with 145 hits, also leading the team both in RBI, with 88, and in home runs, with 30. He is also the team’s best hitter with a .279 batting average.
Tanner Gordon (R) is the projected starting pitcher for the Rockies, and he has a 6-7 record, 6.00 ERA and 1.46 WHIP.
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.
- Julio Rodriguez has recorded at least one hit in each of the Mariners’ last 12 Wednesday games.
- Luis Castillo has recorded a win in five of his last six home appearances against NL opponents that held a losing record.
- Cal Raleigh ranks 1st in the league in Home Runs (58) this season.
Colorado Rockies Player Prop Facts
- 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.
- Tyler Freeman has recorded at least one hit in each of his last 14 appearances against AL opponents 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).
Rockies vs Mariners Prediction
The Mariners are 6-1 in their last 7 head-to-head meetings against the Rockies, having won their last four meetings in Seattle. Under is 9-2 in their last 11 meetings.
In this Rockies vs Mariners Prediction, the Mariners are coming as -335 home favorites. The Mariners have been scorching-hot lately, and they overcame the Astros for the first place of the AL West, having clinched their playoff spot already. Castillo has been better at home for the Mariners, with a 2.71 ERA, while Gordon has been terrible on the road for the Rockies, with a 7.40 road ERA. The Mariners should – and will win this one comfortably, so take them on the runline for a dominating win that will extend their winning streak.