Get the Mariners vs. Rockies prediction with odds, series recap, player props, parlay picks and best bets for this Tuesday MLB game.
The Seattle Mariners (87–69) look to strengthen their playoff positioning as they host the struggling Colorado Rockies (43–113) on Tuesday night at T-Mobile Park.
With Bryce Miller on the hill, Seattle is a heavy favorite against McCade Brown, who’s still searching for his first MLB win.
First pitch is scheduled for 9:40 p.m. ET on ROOT Sports NW and COLR.
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📺 Where To Watch Mariners vs. Rockies? (September 23, 2025)
| Matchup | Colorado Rockies vs. Seattle Mariners |
| When | Tuesday, Sept. 23, 2025 – 9:40 PM ET |
| Where | T-Mobile Park – Seattle, WA |
| TV | ROOT Sports NW, COLR |
| Live Stream | Fubo |
| Tickets | Available via Vivid Seats |
💰 Betting Odds
| Team | Spread | Moneyline | Total (O/U) |
| Mariners | -1.5 (-115) | -248 | O 8 (-110) |
| Rockies | +1.5 (-105) | +203 | U 8 (-110) |
- ATS Prediction: Mariners -1.5
- Total Prediction: Over 8
- Moneyline Prediction: Mariners ML (-248)
⚾ Pitching Matchup
Mariners Starter – Bryce Miller (RHP)
- Record: 12-8
- ERA: 3.96
- WHIP: 1.12
- K/BB: 3.5
- BAA: .238
📈 Career Stats: 358 K in 391 IP, 24–20 record. Solid command and rarely beats himself.
Rockies Starter – McCade Brown (RHP)
- Record: 0-4
- ERA: 9.42
- WHIP: 2.15
- BAA: .346
- K/BB: 11 K, 13 BB (career)
📉 Brown has struggled to adjust to big-league hitters, allowing 12.6 hits per 9 innings.
Edge: Mariners — massive mismatch on the mound.
📊 Team Trends
Mariners (Last 10 Games)
- AVG: .267
- HR: 17
- Runs/Game: 5.2
- Hot Bat: Cal Raleigh (5 HR, .293 AVG).
- Pitching ERA: 2.84
Rockies (Last 10 Games)
- AVG: .236
- HR: 11
- Runs/Game: 3.1
- Hot Bat: Mickey Moniak (.378 AVG, 5 HR, 11 RBI).
- Pitching ERA: 5.69
📋 Injury Report
Mariners
- Bryan Woo (Pectoral) – Day-to-day
- Logan Evans (Elbow) – 15-Day IL
- Gregory Santos (Knee) – 60-Day IL
- Ryan Bliss (Biceps) – 60-Day IL
Rockies
- Thairo Estrada (Hamstring) – 60-Day IL
- Kris Bryant (Lumbar) – 60-Day IL
- Chase Dollander (Knee) – 15-Day IL
- Warming Bernabel (Concussion) – 7-Day IL
🔑 Key Players to Watch
Mariners
- Cal Raleigh (C): 58 HR, 121 RBI – elite power threat.
- Julio Rodríguez (CF): .268 AVG, 27 HR, 90 RBI – sparks lineup with speed & pop.
- Josh Naylor (1B): Team-best .291 AVG with 88 RBI.
Rockies
- Hunter Goodman (C/1B): .279 AVG, 30 HR, 88 RBI – lone consistent slugger.
- Mickey Moniak (OF): .270 AVG, 24 HR – red-hot in September.
- Jordan Beck (OF): .266 AVG, 15 HR, steady contributor.
🔒 Best Prop Bets
| Bet | Line | Pick |
| Bryce Miller Strikeouts | 6.5 | Over |
| Cal Raleigh HR | +300 | Yes |
| Total Runs | 8 | Over |
🧾 Same-Game Parlay (SGP)
| Leg | Pick | Odds* |
| Mariners ML | -248 | |
| Over 8 Runs | -110 | |
| Cal Raleigh HR | +300 |
Parlay Payout: +475 (Bet $100 → Win $475)
*Approximate combined odds.
🔮 Final ClutchBuzz Prediction
Seattle’s playoff push continues against a Rockies team that’s already looking toward 2026. With Bryce Miller holding the clear advantage over McCade Brown, expect the Mariners’ power bats (Raleigh, Julio, Naylor) to tee off early. Colorado’s recent hitting surge won’t be enough to overcome their league-worst pitching staff.
Final Score: Mariners 7 – Rockies 2
- Best Bet: Mariners -1.5 (-115)
- Total: Over 8 Runs
- Prop Play: Cal Raleigh HR (+300)
