• The Mariners are -190 favorites vs the Rockies
• Mariners vs Rockies Over / Under today: 10.5 Runs
• Mariners / Rockies TV Channel: MRTV | ROTV

The Seattle Mariners (-190) visit Coors Field to take on the Colorado Rockies (+154) on September 18, 2026. First pitch is scheduled for 8:10 pm in Denver, CO.

This season, the Mariners are 71-82 against the spread (ATS), while the Rockies are 79-74 ATS.

Mariners vs Rockies Starting Pitchers Today:

• Mariners starting pitcher: Bryan Woo 12-9, 3.88 ERA
• Rockies starting pitcher: Undecided 0-0, 0.00 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 Friday‘s MLB game with 60.5% confidence, factoring in game simulations, recent player performances, starting pitchers and injuries.

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

Best Mariners Player Prop Bets Today:

• Dominic Canzone has hit the Total Bases Over in 19 of his last 25 away games (+15.95 Units / 52% ROI)
• Dominic Canzone has hit the Hits Over in 21 of his last 25 away games (+14.90 Units / 33% ROI)
• Randy Arozarena has hit the Home Runs Over in 4 of his last 9 away games (+13.90 Units / 154% ROI)
• Josh Naylor has hit the Singles Over in 18 of his last 25 away games (+9.85 Units / 33% ROI)
• Josh Naylor has hit the Hits Runs and RBIs Over in 17 of his last 25 away games (+9.30 Units / 34% ROI)

And here are some favorite MLB player prop bets for Rockies players for Friday‘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 7 games at home (+16.10 Units / 230% ROI)
• Connor Norby has hit the Hits Over in 20 of his last 25 games (+10.80 Units / 24% ROI)
• T.J. Rumfield has hit the Singles Over in 18 of his last 25 games (+9.55 Units / 31% ROI)
• T.J. Rumfield has hit the Total Bases Over in 13 of his last 20 games (+8.20 Units / 35% ROI)
• T.J. Rumfield has hit the RBIs Over in 6 of his last 8 games at home (+7.80 Units / 98% ROI)

Mariners Best Bets Today:

• The Seattle Mariners have hit the Game Total Over in 33 of their last 50 away games (+16.80 Units / 31% ROI)
• The Seattle Mariners have hit the 1st Five Innings (F5) Team Total Over in 20 of their last 30 games (+9.50 Units / 27% ROI)
• The Seattle Mariners have hit the Team Total Over in 7 of their last 9 away games (+4.70 Units / 46% ROI)
• The Seattle Mariners have covered the 1st Five Innings (F5) Run Line in 5 of their last 8 away games (+1.35 Units / 14% ROI)
• The Seattle Mariners have covered the Run Line in 5 of their last 9 away games (+1.25 Units / 11% ROI)

Rockies Best Bets Today:

• The Colorado Rockies have hit the 1st Five Innings (F5) Team Total Under in 24 of their last 35 games (+12.00 Units / 29% ROI)
• The Colorado Rockies have hit the Game Total Over in 10 of their last 13 games (+8.95 Units / 62% ROI)
• The Colorado Rockies have hit the Team Total Over in 6 of their last 8 games at home (+3.85 Units / 41% ROI)
• The Colorado Rockies have covered the Run Line in 7 of their last 10 games at home (+3.85 Units / 32% ROI)
• The Colorado Rockies have hit the Moneyline in 4 of their last 9 games at home (+0.65 Units / 7% ROI)

Mariners Against the Spread (ATS) Record

Against the spread this season, the Mariners are 58-94 against the Run Line (-33.75 Units / -18.92% ROI).

• 71-82 when betting on the Moneyline for -33.2 Units / -16.23% ROI
• 81-64 when betting on the total runs Over for +10.8 Units / 6.39% ROI
• 64-81 when betting on the total runs Under for -24.65 Units / -14.68% ROI

Rockies Against the Spread (ATS) Record

Against the spread this season, the Rockies are 79-74 against the Run Line (-8.9 Units / -4.65% ROI).

• 56-97 when betting on the Moneyline for -15.4 Units / -9.99% ROI
• 75-73 when betting on the total runs Over for -6.05 Units / -3.55% ROI
• 73-75 when betting on the total runs Under for -8.4 Units / -5.05% ROI

Mariners Keys to the Game vs. the Rockies

The Mariners are just 2-69 (.028) when trailing entering the 8th inning this season — tied for lowest in MLB.

The Mariners are just 31-47 (.397) on the road this season — 5th lowest in MLB.

The Mariners are just 15-31 (.326) vs the top 10 runs allowed teams this season Today, they face Rockies (30th fewest runs allowed).

The Mariners are just 22-25 (.468) when they’ve scored in the first inning this season — 2nd lowest in MLB.

Rockies Keys to the Game vs. the Mariners

The Rockies are just 37-27 (.578) when scoring 5 or more runs this season — lowest in MLB.

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 3-8 (.273) when tied entering the 7th inning this season — 3rd lowest in MLB.

The Rockies are just 50-73 (.407) when allowing 5 or more extra base hits this season — 2nd lowest in MLB.

Mariners Hitting Stats & Trends

Mariners hitters are slugging just .478 on the first pitch of at-bats this season — lowest in MLB.

The Mariners are just 30-48 (.385) against the run line (-20.7% ROI) on the road this season — lowest in MLB.

Mariners hitters are slugging just .345 against LHP this season — lowest in MLB.

Mariners hitters have an OPS of just .649 (1,928 PA’s) against LHP this season — lowest in MLB.

Rockies Hitting Stats & Trends

Rockies hitters have chased 36% of pitches out of the zone against LHP 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 a swing rate of 52% this season — highest in MLB.

Rockies hitters have a swing rate of 41% on the first pitch of at-bats 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 — tied for 2nd best in MLB.

Rockies Pitching Stats & Trends

Opponents are hitting .289 against Rockies pitchers this season — highest in MLB.

Rockies pitchers have an ERA of 5.91 (681.0 IP) at home this season — 2nd highest in MLB.

Rockies pitchers have allowed opponents to score in three different innings in 63% of their games this season — highest in MLB.

Rockies pitchers have an ERA of 5.62 (1343.1 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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