The Seattle Mariners (up 2–1) can punch their ticket to the ALCS on Wednesday afternoon, while the Detroit Tigers look to force a decisive Game 5 at Comerica Park. It’s Bryce Miller vs. Casey Mize on FS1, and the market is tight: some books list Tigers -113 (Total 8.5), while others still show Seattle as the chalk from earlier pricing.
Seattle’s thump (No. 3 in HRs) and a locked-in pitching staff (3.13 ERA last 10) meet a Detroit club that’s been stingy on the mound lately (3.06 ERA last 10) but quietly light with the bats (3.0 runs per game in that span).
You can find the best baseball betting strategy here.
⚾ MLB Betting Promos and Bonuses
| Sportsbook | Offer | How to Claim? |
| Caesars Sportsbook | 💰 Bet $1, Get Double Winnings on Your Next 10 Bets | Claim here |
| Fanatics Sportsbook | 🔁 Bet & Get Up to $1,000 in No-Sweat Bets | Claim here |
| bet365 Sportsbook | 🎁 Bet $5, Receive $150 in Bonus Bets — Win or Lose | Claim here |
| DraftKings Sportsbook | 🚀 Bet $5, Instantly Unlock $200 in Bonus Bets | Claim here |
| BetMGM Sportsbook | 🏆 First Bet Offer: Bet $10, Win $150 | Claim here |
| FanDuel Sportsbook | ✅ Bet $5, Get $200 in Bonus Bets If Your Bet Wins | Claim here |
📺 Where To Watch Mariners vs. Tigers ALDS Game 4? (October 8, 2025)
| Item | Details |
| Matchup | Mariners at Tigers — ALDS Game 4 (SEA leads 2–1) |
| Date/Time | Wed, Oct. 8, 2025 – 3:08 p.m. ET |
| Venue | Comerica Park — Detroit, MI |
| TV/Stream | FS1 • Fubo (stream) |
💰 Betting Odds Snapshot
(Lines referenced in the materials you provided)
| Market | Side/Total | Price |
| Moneyline | Tigers | -113 |
| Moneyline | Mariners | -106 |
| Alt Moneyline (earlier) | Mariners | -196 |
| Alt Moneyline (earlier) | Tigers | +162 |
| Total | 8.5 | O -105 / U -115 |
Read the room: If you can grab Seattle near -105, that’s value relative to earlier numbers. If the market swings back toward Detroit -110/-115, the Under gains appeal with Mize’s floor and Comerica’s run suppression.
⚾ Probable Starters (2025 Snapshot)
| Pitcher | Team | GS | W-L | ERA | IP | K | BB | WHIP | Recent Note |
| Casey Mize (R) | DET | 28 | 14-6 | 3.87 | 149.2 | 139 | 36 | 1.27 | 10/1 @CLE: 3.0 IP, 1 ER, 1 H |
| Bryce Miller (R) | SEA | 18 | 4-6 | 5.68 | 90.1 | 74 | 34 | 1.41 | 9/28 vs LAD: 4.0 IP, 4 ER |
Last 5 Starts — Form Guide
| Pitcher | Opponent (Date) | IP | H | ER | K | BB |
| Mize | @CLE (10/1) | 3.0 | 1 | 1 | 1 | 2 |
| @BOS (9/26) | 6.1 | 6 | 2 | 8 | 0 | |
| vs ATL (9/21) | 5.2 | 5 | 3 | 5 | 3 | |
| vs CLE (9/16) | 5.1 | 7 | 3 | 8 | 1 | |
| @NYY (9/9) | 6.0 | 4 | 2 | 8 | 0 | |
| Miller | vs LAD (9/28) | 4.0 | 5 | 4 | 2 | 2 |
| vs COL (9/23) | 5.2 | 5 | 3 | 4 | 1 | |
| @KC (9/17) | 5.0 | 8 | 3 | 4 | 2 | |
| vs LAA (9/11) | 5.2 | 6 | 4 | 11 | 0 | |
| @ATL (9/6) | 5.1 | 5 | 2 | 3 | 2 |
Read: Mize’s baseline is steadier; Miller’s stuff pops (see 11 K vs LAA) but contact damage is real.
📊 Team Snapshot (Full-Season Context)
Mariners — Offense & Pitching
- Runs/Game: 4.7 (10th)
- HR: 238 (3rd) • SLG: .420 • OBP: .320
- Team ERA: 3.87 (13th) • WHIP: 1.22 (top-10)
- Last 10 (bats): 4.5 R/G • 16 HR • .418 SLG
Tigers — Offense & Pitching
- Runs/Game: 4.68 (11th)
- HR: 198 (10th) • SLG: .413 • OBP: .316
- Team ERA: 3.95 (15th) • WHIP: 1.25
- Last 10 (bats): 3.0 R/G • 6 HR • .297 SLG
🔥 Recent Hitting Notes
Mariners
- Cal Raleigh: .317 last 10, 4 HR, 9 RBI (60 HR / 125 RBI on season)
- J.P. Crawford: HR in Game 3; table-setting well
- Jorge Polanco: .611 SLG last 10
Tigers
- Jahmai Jones: .438 last 10 (small sample heater)
- Javier Báez: .342 last 10 with pop signs returning
- Riley Greene: 36 HR, 111 RBI (team leader)
🚑 Injury Watch
Tigers: Reese Olson (60-IL, shoulder), Jason Foley (60-IL), multiple arms on IL — bullpen depth thinner than the ERA suggests.
Mariners: Bryan Woo (DTD, pec) listed; back-end pen pieces on IL, but staff 3.13 ERA last 10.
🧮 Advanced Betting Angles
1) Total 8.5 — Lean UNDER
- Tigers offense last 10: 3.0 R/G, .297 SLG
- Comerica suppresses HRs; Mize’s contact profile plays here.
- Mariners staff form: 3.13 ERA last 10; 9 HR allowed in that span.
Risk note: One swing can blow this up (Seattle’s power), so consider live Unders if Mize settles and Miller survives the first pass through the order.
2) Side — Mariners at short plus/near pick’em
- If you can grab Seattle at -106 to +100, it offsets Miller’s variance with:
- Bullpen edge in current form
- Top-tier power (No. 3 in MLB HR)
- Closeout leverage (aggressive pen usage, no saving arms)
If the number stays Tigers -110/-115, your value tilts to the Under and SEA +1.5 (RL) in parlays.
🎯 Player Props (data-driven leans)
(Play at standard prices only if you see reasonable numbers available)
- Cal Raleigh — 1.5 Total Bases (Over)
Form + volume + mistake-pitches park-agnostic power. - Julio Rodríguez — Hit (Yes)
Contact quality + speed adds infield hit equity. - Riley Greene — 0.5 RBI (Yes, plus-money only)
Run-producer with platoon pop, Miller’s contact issue helps. - Casey Mize — Under K (if line ≥ 5.5)
Pitch-to-contact profile; Seattle whiffs but Mize’s K/9 ~8.4, hook lands often at 5.
🧩 ClutchBuzz Same-Game Parlay (SGP)
- Mariners ML (or +1.5 if you prefer safety)
- Total Under 9.5 (Alt)
- Cal Raleigh 1+ Hit
Target: +250 to +320 range depending on sportsbook.
🏁 Final Mariners vs. Tigers ALDS Prediction
| Market | Pick |
| Moneyline | Mariners -106 (play to -112) |
| Total | Under 8.5 (or wait for 9 live) |
| Score | Mariners 4, Tigers 3 |
Why: Seattle’s staff form + power floor + closeout urgency > Detroit’s contact-heavy lineup that’s cooled. Mize keeps it tight, but the Mariners’ late-inning run prevention and one timely extra-base hit (Raleigh/Julio) swing it.
