Mariners vs Rockies Prediction, Odds, Moneyline, Spread & Over/Under for Sept. 18

Odds updated as of 7:12 p.m.

The Seattle Mariners will face the Colorado Rockies in MLB action on Friday.

We've got you covered, in terms of the most important information regarding this game before you take a look at the MLB odds and spreads on FanDuel Sportsbook.

Mariners vs Rockies Game Info

• Seattle Mariners (71-82) vs. Colorado Rockies (56-97)
• Date: Friday, September 18, 2026
• Time: 8:10 p.m. ET
• Venue: Coors Field -- Denver, Colorado
• Coverage: Rockies.TV and Mariners.TV

Mariners vs Rockies Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-186) | COL: (+156)
• Spread: SEA: -1.5 (-122) | COL: +1.5 (+102)
• Total: 10.5 -- Over: (-115) | Under: (-105)

Mariners vs Rockies Probable Starting Pitchers

Probable Pitchers: Bryan Woo (Mariners) - 12-9, 3.88 ERA vs Gabriel Hughes (Rockies) - 0-8, 6.37 ERA

This contest's pitching matchup is set, as the Mariners will send Bryan Woo (12-9) to the mound, while Gabriel Hughes (0-8) will answer the bell for the Rockies. When Woo starts, his team is 14-14-0 against the spread this season. When Woo starts a game and his team is the favorite on the moneyline, they have a record of 13-8. When Hughes starts, the Rockies have gone 4-8-0 against the spread. The Rockies have been the moneyline underdog in 11 of Hughes' starts this season, and they went 2-9 in those matchups.

Mariners vs Rockies Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (64.4%)

Mariners vs Rockies Moneyline

• Looking at the moneyline for Mariners-Rockies, Seattle is the favorite at -186, and Colorado is +156 playing at home.

Mariners vs Rockies Spread

• The Mariners are 1.5-run road favorites on the runline against the Rockies. The Mariners are -122 to cover, and the Rockies are +102.

Mariners vs Rockies Over/Under

• The over/under for Mariners-Rockies on Sept. 18 is 10.5. The over is -115, and the under is -105.

Bet on Seattle Mariners vs. Colorado Rockies on FanDuel today!

Mariners vs Rockies Betting Trends

• The Mariners have come away with 57 wins in the 116 contests they have been listed as the favorites in this season.
• This season Seattle has been victorious eight times in 12 chances when named as a favorite of at least -186 on the moneyline.
• Contests with the Mariners have gone over the total set by sportsbooks in 81 of 151 chances this season.
• In 151 games with a line this season, the Mariners have a mark of 56-95-0 against the spread.
• The Rockies have a 53-93 record in games they were listed as the moneyline underdog (winning 36.3% of those games).
• When playing as a moneyline underdog with odds of +156 or longer, Colorado has gone 17-44 (27.9%).
• The Rockies have played in 150 games with a set over/under, and have combined with opponents to go over the total 75 times (75-72-3).
• The Rockies have collected a 78-72-0 record against the spread this season.

Mariners Player Leaders

• Randy Arozarena has 150 hits this season and a team-best OBP of .375. He has a .278 batting average and a slugging percentage of .476.
• Among all qualified batters in MLB, he is 24th in batting average, 11th in on-base percentage, and 29th in slugging.
• Arozarena has recorded a base hit in six straight games. During his last 10 outings he is batting .359 with two doubles, three home runs, four walks and nine RBIs.
• Josh Naylor has an OPS of .692, fueled by an OBP of .327 and a team-best slugging percentage of .365 this season. He's batting .272.
• He is 38th in batting average, 75th in on-base percentage and 119th in slugging among qualified hitters.
• Naylor takes a two-game streak with at least one hit into this matchup. During his last five outings he is hitting .409 with two doubles, a walk and three RBIs.
• Julio Rodriguez has 137 hits this season and has a slash line of .243/.304/.397.
• Rodriguez takes a two-game hitting streak into this game. In his last five games he is hitting .333 with three doubles, three walks and an RBI.
• Cole Young is batting .247 with a .309 OBP and 65 RBI for Seattle this season.

Rockies Player Leaders

• Jake McCarthy is batting .295 with 30 doubles, 11 triples, 15 home runs and 29 walks. He's slugging .485 with an on-base percentage of .340.
• Including all the qualifying players in MLB, he ranks eighth in batting average, 55th in on-base percentage and 20th in slugging percentage.
• TJ Rumfield has a .393 on-base percentage while slugging .456. Both are team-highs. He has a batting average of .301.
• He is currently seventh in batting average, third in on-base percentage and 41st in slugging percentage among all qualified hitters.
• Hunter Goodman leads the Rockies with 118 hits.
• Kyle Karros is hitting .260 with 21 doubles, three triples, 12 home runs and 50 walks.

Sign up for FanDuel Sportsbook and FanDuel Daily Fantasy today!