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ALDS Game 5 – Detroit Tigers vs Seattle Mariners Betting Report (Friday, Oct 10, 2025)

It all comes down to this — Game 5 in Seattle. The winner moves on to the ALCS, the loser goes golfing. Both clubs have traded punches all series, but tonight we get an ace-on-ace showdown: Tarik Skubal vs George Kirby — two control artists, one elimination game.


Detroit Tigers (91-78) @ Seattle Mariners (92-74)

Line: DET -1.5 (-138) SEA +1.5 (+113)Total: 6
Pitchers: Tarik Skubal (L) 13-6 2.21 ERA vs George Kirby (R) 10-8 4.21 ERA


Market Snapshot

  • Forecast (Raymond Report Model): DET 4.64 – SEA 2.41 (O/U 7.05)
  • C.O.W.: Detroit 71.43% | Seattle 25%
  • C.O.G.O.: 39% → leans Under 6
  • Cycle/Form: Detroit Neutral (10D) | Seattle Bearish (2D)
  • SOS (last 7 games): SEA 69% vs DET 35% — Mariners have faced stiffer pitching.
  • Line Movement: Opened DET -120, now -138 → sharp money leaning Tigers.

Situational Edges

Category Detroit Seattle Edge
Last 10 SU 5-5 5-5 Even
Last 10 O/U 3-6-1 (Unders) 4-5-1 (Unders) Under trend
Off Win/Loss Split DET After Win 21-24 SEA After Loss 20-13 SEA bounce-back potential
Pitcher Form (L7 starts) Skubal 5-2, 3.43 ERA Kirby 4-3, 3.29 ERA Even – Slight DET edge
Home/Away DET 44-42 road SEA 52-31 home SEA comfort zone
Night Games DET 30-33 SEA 52-28 SEA thrives under the lights

Raymond Report Angle

Skubal’s been nails — 15-5 SU last 20 team starts, and the Tigers have covered seven of their last ten as a short favorite. Seattle, meanwhile, has lost five of their past seven when facing left-handed pitching, and their offense has gone quiet (3.1 runs avg last 7).

Kirby will keep them close early, but his 4.84 ERA at home vs. LHP-heavy lineups is a red flag. Detroit’s lineup is making better contact (team AVG .274 last 5 games) and the bullpen is rested.


Prediction

  • Score Projection: Detroit 4 – Seattle 2
  • Lean: Tigers -138 (ML)
  • Run Line: Detroit -1.5 (+125 value if you’re bold)**
  • Total Lean: Under 6 (Playoff pressure + ace tempo = low variance)

🧾 Raymond Report Key Numbers

  • Detroit After Win: 21-24 SU, but 9-2 with 1 day off (ideal prep spot).
  • Seattle After Loss: 20-13 SU at home — good bounce-back record, but only .216 AVG vs LHP this month.
  • Detroit vs AL West: 8-10 SU road team record but 2.95 ERA — deceptively strong.
  • Seattle vs AL Central: 12-6 SU team record — good matchups historically, but Detroit has momentum.

💰 Raymond Report Playoff Value Play

👉 Detroit Tigers -138 ML & Under 6
(Pitching + momentum edge + Under cycle = profitable combo)


📊 Takeaway:
Game 5’s are built on nerves, not names. Detroit’s bullpen and left-handed ace give them the edge. Seattle’s crowd will be loud, but numbers don’t yell — they whisper “Under.”

🎯 Final Call: Detroit 4 – Seattle 2 (Under 6 Cashes)