• The Mariners are -160 favorites vs the Rockies
• Mariners vs Rockies Over / Under today: 10.5 Runs
• Mariners / Rockies TV Channel: MRTV | ROTV

The Seattle Mariners (-160) visit Coors Field to take on the Colorado Rockies (+135) on September 20, 2026. First pitch is scheduled for 3:10 pm in Denver, CO.

This season, the Mariners are 72-83 against the spread (ATS), while the Rockies are 81-74 ATS.

Mariners vs Rockies Starting Pitchers Today:

• Mariners starting pitcher: Kade Anderson 1-2, 5.33 ERA
• Rockies starting pitcher: Tomoyuki Sugano 12-10, 5.55 ERA

Mariners vs. Rockies Odds, Run Line, Over/Under & Moneyline

Mariners vs Rockies Prediction for Today’s Game

Based on recent trends the model predicts the Mariners will win Sunday‘s MLB game with 61.3% confidence, factoring in game simulations, recent player performances, starting pitchers and injuries.

Bet now on Mariners vs Rockies and all games with BetMGM

We’ve highlighted some favorite MLB player prop bets for Mariners players for Sunday‘s game, looking at profitable historical betting trends:

Best Mariners Player Prop Bets Today:

• J.P. Crawford has hit the Home Runs Over in 3 of his last 7 games (+18.90 Units / 270% ROI)
• Dominic Canzone has hit the Total Bases Over in 19 of his last 25 away games (+15.85 Units / 52% ROI)
• Dominic Canzone has hit the Hits Over in 16 of his last 20 away games (+11.45 Units / 33% ROI)
• Randy Arozarena has hit the Walks Under in 17 of his last 20 away games (+11.20 Units / 30% ROI)
• Julio Rodriguez has hit the Runs Under in 19 of his last 25 away games (+9.70 Units / 25% ROI)

And here are some favorite MLB player prop bets for Rockies players for Sunday‘s game, looking at profitable historical betting trends:

Best Rockies Player Prop Best Bets Today:

• Cole Carrigg has hit the Home Runs Over in 3 of his last 9 games at home (+14.10 Units / 157% ROI)
• Connor Norby has hit the Hits Over in 21 of his last 25 games (+13.25 Units / 28% ROI)
• Ezequiel Tovar has hit the Total Bases Under in 18 of his last 25 games at home (+11.95 Units / 36% ROI)
• Connor Norby has hit the Hits Runs and RBIs Over in 18 of his last 25 games (+11.00 Units / 36% ROI)
• Jordan Beck has hit the Runs Under in 16 of his last 20 games at home (+9.65 Units / 29% ROI)

Mariners Best Bets Today:

• The Seattle Mariners have hit the Game Total Over in 32 of their last 50 away games (+14.50 Units / 26% ROI)
• The Seattle Mariners have hit the 1st Five Innings (F5) Team Total Over in 23 of their last 35 games (+10.50 Units / 25% ROI)
• The Seattle Mariners have hit the Team Total Under in 26 of their last 45 away games (+4.85 Units / 9% ROI)
• The Seattle Mariners have hit the 1st Five Innings (F5) Moneyline in 7 of their last 10 away games (+2.50 Units / 17% ROI)
• The Seattle Mariners have covered the 1st Five Innings (F5) Run Line in 6 of their last 10 away games (+1.35 Units / 11% ROI)

Rockies Best Bets Today:

• The Colorado Rockies have hit the 1st Five Innings (F5) Team Total Under in 29 of their last 45 games (+11.90 Units / 22% ROI)
• The Colorado Rockies have hit the Game Total Over in 10 of their last 15 games (+6.65 Units / 40% ROI)
• The Colorado Rockies have covered the Run Line in 9 of their last 12 games at home (+5.85 Units / 41% ROI)
• The Colorado Rockies have hit the Team Total Over in 7 of their last 10 games at home (+3.85 Units / 33% ROI)
• The Colorado Rockies have hit the Moneyline in 5 of their last 11 games at home (+0.90 Units / 8% ROI)

Mariners Against the Spread (ATS) Record

Against the spread this season, the Mariners are 58-96 against the Run Line (-35.95 Units / -19.91% ROI).

• 72-83 when betting on the Moneyline for -33.7 Units / -16.21% ROI
• 81-66 when betting on the total runs Over for +8.5 Units / 4.96% ROI
• 66-81 when betting on the total runs Under for -22.65 Units / -13.32% ROI

Rockies Against the Spread (ATS) Record

Against the spread this season, the Rockies are 81-74 against the Run Line (-6.9 Units / -3.57% ROI).

• 57-98 when betting on the Moneyline for -15.15 Units / -9.7% ROI
• 75-75 when betting on the total runs Over for -8.35 Units / -4.84% ROI
• 75-75 when betting on the total runs Under for -6.4 Units / -3.8% ROI

Mariners Keys to the Game vs. the Rockies

The Mariners are just 2-73 (.027) when trailing entering the 9th inning this season — tied for 3rd lowest in MLB.

The Mariners are just 26-39 (.400) vs bottom 10 scoring offenses this season Today, they face the Rockies (seventh in runs scored).

The Mariners are just 23-26 (.469) when they’ve scored in the first inning this season — 2nd lowest in MLB.

The Mariners are just 2-70 (.028) when trailing entering the 8th inning this season — 2nd lowest in MLB.

Rockies Keys to the Game vs. the Mariners

The Rockies are just 25-24 (.510) when they’ve hit 2 or more home runs this season — lowest in MLB.

The Rockies are just 33-26 (.559) when they’ve had 10 or more hits this season — lowest in MLB.

The Rockies are just 38-27 (.585) when scoring 5 or more runs this season — lowest in MLB.

The Rockies are just 19-37 (.339) after a win this season — lowest in MLB.

Mariners Hitting Stats & Trends

The Mariners are batting just .152 with two-strikes this season — lowest in MLB.

The Mariners are just 58-97 (.374) against the run line (-20.8% ROI) this season — lowest in MLB.

Mariners hitters have 107 extra-base hits out of 380 total hits (just 28%) against LHP this season — lowest in MLB.

The Mariners are batting just .221 against LHP this season — lowest in MLB.

Rockies Hitting Stats & Trends

Rockies hitters have a swing rate of 41% on the first pitch of at-bats this season — highest in MLB.

Rockies hitters have a swing rate of 52% this season — highest in MLB.

The Rockies have won just 45% of games in which they have scored first this season — lowest in MLB.

Rockies hitters have chased 36% of pitches out of the zone against LHP this season — highest in MLB.

Mariners Pitching Stats & Trends

Mariners pitchers have a first-pitch strike rate of 66% this season — highest in MLB.

Mariners pitchers have walked 7% of batters this season — 2nd best in MLB.

Mariners pitchers have thrown at least two strikes in their first three pitches to 69% of opposing batters this season — highest in MLB.

Mariners pitchers have walked 7% of batters when facing the leadoff batter in the inning this season — 3rd best in MLB.

Rockies Pitching Stats & Trends

Rockies pitchers have an ERA of 5.86 (699.0 IP) at home this season — 2nd highest in MLB.

Rockies pitchers have allowed a slugging percentage of .490 this season — highest in MLB.

The Rockies have allowed 6.21 runs per game (478/77) at home this season — 2nd highest in MLB.

Rockies pitchers have an ERA of 5.60 (1361.1 IP) this season — highest in MLB.

More MLB Reading:

• Home Run Predictions Today
• Best NRFI Bets Today
• Strikeout Props Today
• MLB Starting Pitchers Today

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