The Colorado Rockies host the Miami Marlins on September 18, 2025. First pitch from Coors Field is scheduled for 3:10 p.m. EDT; the game will be broadcast on FDSFL.
The Marlins are going for the sweep after winning the first two games with scores of 6-5 and 8-4.
Find my MLB betting preview and Marlins vs Rockies prediction below, as well as probable pitchers, betting trends, injury reports and more.
My Marlins vs Rockies Prediction
- Marlins vs Rockies pick: Over 10.5 (+100)
My Marlins vs Rockies best bet is Over 10.5 total runs in this game. Make sure to find the best odds by checking our live MLB odds page.
Marlins vs Rockies Odds
| Marlins Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
-1.5 -115 | 10.5 100o / -120u | -170 |
| Rockies Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
+1.5 -105 | 10.5 100o / -120u | +145 |
Marlins vs Rockies Projected Starting Pitchers
| RHP Sandy Alcantara (MIA) | Stat | RHP Tanner Gordon (COL) |
|---|---|---|
| 9-12 | W-L | 6-6 |
| 1.8 | fWAR (FanGraphs) | 0.9 |
| 5.53 / 4.60 | ERA / xERA | 6.14 / 5.47 |
| 4.19 / 4.24 | FIP / xFIP | 4.47 / 4.25 |
| 1.29 | WHIP | 1.50 |
| 11.3 | K-BB% | 13.3 |
| 45.8 | GB% | 35.0 |
| 109 | Stuff+ | 84 |
| 101 | Location+ | 105 |
Marlins vs Rockies Preview
The first two games of this series already produced totals of 11 and 12 runs. This is Coors Field, the hitters' paradise of MLB, where even the worst lineup in the league, such as the Rockies', can score a ton of runs.
Sandy Alcantara will start for the Marlins, and although he improved his performance in August, there is still one concerning split: his ERA on the road is 7.24 this season. At Coors, that's as big a red flag as you can get.
Tanner Gordon will take the hill for the Rockies, and he also has an awful split for today: his ERA in day games is 7.43. In his past outing at home, Gordon gave up six runs in three and 2/3 innings against the Padres.
Both bullpens are also a problem. Colorado ranks next-to-last in ERA with 5.30 and the Marlins sit at 21st with 4.33.
Our Bet Labs system recommends sticking with the over for this series finale.
This system targets games played at Coors Field, known for its high-scoring potential due to its altitude.
The focus is on games in August, September, and October, when late-season dynamics can influence outcomes. The closing total for the game must be between 0 and 11.
This strategy takes the over as the recommended approach, leveraging the tendency for higher run outputs at Coors Field during these months.
Pick: Over 10.5 (+100, bet365)
Marlins vs Rockies Betting Trends
