Free MLB Pick: Rockies vs. Mariners Odds
Looking for Colorado Rockies vs. Seattle Mariners Free MLB predictions? MLB betting sees the Rockies taking on the Mariners on 9/24 at T-Mobile Park, in Seattle. Cappers Picks provides complimentary expert handicapping picks on all MLB baseball matchups all season long so stay tuned for more FREE daily MLB predictions like this Rockies Mariners free pick.
2025 MLB Handicapping – Colorado Rockies vs Seattle Mariners
(43-114) Colorado Rockies vs. Seattle Mariners (88-69)
Date: Sep 24, 2025
Time: 9:40 PM ET
Venue: T-Mobile Park in Seattle, WA
Projected Starting Pitchers: Tanner Gordon vs. Luis Castillo
MLB Moneyline Odds: Rockies +272 | Mariners -348 (Bet Now!)
Today’s MLB Run Line Betting Odds: Rockies +1.5 | Mariners -1.5
MLB Baseball Gambling Total: O/U: 7.5
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Rockies vs. Mariners Gameday
Tonight’s game at T-Mobile Park features the Colorado Rockies visiting the Seattle Mariners. While the Mariners have been on a hot streak, winning their last five games, the Rockies have struggled significantly, with a record of 43-114.
As the Mariners look to keep their momentum going, the Rockies aim to disrupt the Mariners’ winning run.
For the Rockies, interim manager Warren Schaeffer faces a tough challenge against the top team in the AL West. Despite a recent loss to the Mariners, the Rockies showed resilience with a close 4-3 game. However, their road record of 18-58 indicates potential struggles against a dominant Mariners team.
On the other hand, the Mariners, under manager Dan Wilson, have been on fire of late, especially at home with a 49-27 record. Seattle’s recent games highlight their ability to win close matchups, such as their previous 4-3 victory over the Rockies. With their current form, they look to extend their winning streak further and still aim to win the AL West.
In recent head-to-head matchups, the Mariners have had the edge, winning the last game by a narrow margin. Both teams will be mindful of the mild weather, although the retractable roof at T-Mobile Park ensures that wind will not be a factor.
Fans can catch the action live on RSNW at 9:40 PM.
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Colorado Rockies vs. Seattle Mariners Odds & Last 5
Interestingly, the game odds indicate a strong favor for the Mariners, with a moneyline of -332 compared to the Rockies’ +266. The runline also favors Seattle at -1.5 with odds of -145, suggesting expectations of a comfortable win. The total runs over/under is set at 7.5, indicating a potentially moderate scoring game.
In recent games, the Mariners have shown consistency, highlighted by their 4-3 win over the Rockies on September 23rd. This game saw Seattle’s Bryce Miller pitch 5 2/3 innings, allowing three earned runs, while Josh Naylor’s performance with two hits and three RBIs contributed to the win. The Rockies, despite a strong start by McCade Brown with ten strikeouts, fell short in the close contest.
For the Rockies, their recent games have been a mixed bag, including a 3-1 win against the Angels on September 21st. However, their struggles are evident with a 3-0 loss to the Angels on September 20th, where their offense was limited to five hits. As the Rockies face Seattle again, they aim to replicate their earlier success while overcoming recent challenges.
Mariners Stats
Currently, the Seattle Mariners are on a five-game winning streak, showcasing a solid performance in their recent games. They managed a narrow victory against the Colorado Rockies, 4-3, with Dominic Canzone hitting a home run. This momentum is crucial as they aim to maintain their winning ways.
Offensively, the Mariners hold a batting average of .244, ranking 13th in the league. Their power at the plate is evident with 231 home runs, placing them 3rd. Players like Cal Raleigh lead the charge with 58 home runs, topping the league charts.
On the mound, the Mariners’ pitching staff has been reliable, with an ERA of 3.88, ranking 11th. They have limited opponents to a batting average of .242. Quality starts have been a strength, with 66 recorded this season, ranking 5th.
Key players have been instrumental in their recent success. Josh Naylor has been consistent, contributing significantly with a .292 batting average. Meanwhile, Eugenio Suárez adds depth with his 47 home runs, ranking 5th in the league.
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Rockies Stats
Firstly, the Colorado Rockies have shown some struggles at the plate this season. Their batting average sits at .239, ranking 15th in the league. Despite this, their on-base percentage is lower at .294, placing them 23rd, indicating difficulties in reaching base consistently.
In terms of power, the Rockies have hit 155 home runs, which ranks them 21st. However, they have a decent number of doubles with 247, ranking 13th in the league. Their slugging percentage of .388 ranks 18th, reflecting some ability to hit for extra bases.
Defensively, the pitching staff has encountered challenges, with an ERA of 6.00 that ranks 29th. The team has allowed a batting average against of .296, placing them 23rd. Additionally, they have given up 240 home runs, ranking 25th, which highlights their struggles in limiting the long ball.
In recent games, the Rockies have had mixed results. They managed a win against the Los Angeles Angels, but also faced losses against the Seattle Mariners and Miami Marlins. Key hitters like Hunter Goodman and Ezequiel Tovar have been pivotal, with Goodman leading the team in home runs and RBIs.
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Rockies vs. Mariners Pitching Matchup
Tanner Gordon takes the mound for the Colorado Rockies with an ERA of 6.00. His win-loss record stands at 6-7, indicating some inconsistency throughout the season. However, he has shown resilience in certain outings, striking out batters with a WHIP of 1.46.
Gordon’s performance has fluctuated, with some games showcasing his ability to keep hitters at bay. Yet, his ERA suggests he has struggled to limit runs in several starts.
On the other side, Luis Castillo will start for the Seattle Mariners, bringing an ERA of 3.63 to the game. His record of 10-8 reflects a more stable performance compared to his counterpart. Castillo’s WHIP of 1.23 indicates his ability to control the game and keep runners off base.
Castillo has consistently delivered solid outings, often keeping his team in contention. His strikeout ability has been a key factor, helping him navigate through challenging lineups.
Colorado Rockies vs. Seattle Mariners Baseball Betting Trends
- The Mariners have won their last five games straight-up.
- The Mariners have hit the over in four of their last five games.
- The Rockies have lost three of their last five games straight-up.
- Also, the Rockies have hit the under in three of their last five games.
- Additionally, the Mariners have covered the run line in four of their last five games.
- The Rockies have failed to cover the run line in three of their last five games.
Rockies vs Mariners Prediction: Mariners RL -1.5
The Mariners come into this one red hot, riding a five-game winning streak while posting an impressive 9-1 record over their last 10 contests. They’re 49-27 at home.
That type of form isn’t a fluke—it’s the mark of a team peaking at the right time and dominating both at the plate and on the mound.
Meanwhile, the Rockies continue to limp through the schedule, dropping three of their last five and sitting on a dreadful 18-58 road record. With numbers that ugly away from home, it’s nearly impossible to find betting value backing Colorado in this spot.
Given Seattle’s current momentum and the Rockies’ inability to perform on the road, the Mariners are the clear side here.
Additionally, T-Mobile Park has been a fortress for Seattle, and their confidence at home only adds to the edge. The Mariners’ ability to generate timely runs and shut down opponents makes them extremely tough to fade right now.
Therefore, the runline at -1.5 provides the best value, as Seattle’s recent stretch has seen them cover comfortably.
Of course, if you’re feeling adventurous you could tack on the moneyline for a parlay.
Today’s MLB Free Pick
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MLB Betting Tweet Of The Day
Soak it in 🥂 #SeizeTheMoment pic.twitter.com/Tp4lr2DW7p
— Seattle Mariners – x (@Mariners) September 24, 2025
Signing off. Let’s do it again tomorrow. #SeizeTheMoment pic.twitter.com/A3MZRIbE9O
— Seattle Mariners – x (@Mariners) September 24, 2025
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