Los Angeles Angels @ Seattle Mariners
LAAAwayLos Angeles Angels31%
@SMHomeSeattle Mariners69%
Model PickSeattle Mariners 69%Market edge — disclosed after closing odds are collectedEvidence 12 structured · 3 qualitative
AI Summary grounded in real data · zero hallucination
The model projects a Seattle Mariners victory with a 69% probability, while the edge against the market is not calculated. The primary drivers supporting this pick are 'Starting Pitcher Matchup' and 'Home Advantage'. However, the key swing risk lies in the potential lack of motivation as both teams play out their end-of-season schedule.
Logistic-regression statistical model — predicts Los Angeles Angels vs Seattle Mariners by accumulating the log-odds contributions of 12 proven structured metrics. Only structured metrics enter the probability; qualitative and folklore factors get a label only. Predictions are sealed with SHA-256 before the game.
Model factor contribution How the 69% home win was derived
Home Advantage+2.5
Pythagorean Expectation+0.8
Season Win%+1.5
Last 10 Games Form+1.2
Home/Away Split+2.4
Team OBP+0.3
Team SLG+0.7
Team ERA+0.5
Team WHIP+2.1
Starting Pitcher Matchup+6.9
Baseline 50% → final home win68.9%
Each factor's log-odds contribution accumulated · only structured metrics reflected (qualitative/folklore excluded) · each %p converts log-odds to probability, so it's non-linear — a simple sum may not exactly equal (final − baseline)
Structured metric analysis 12 metrics · fully disclosed
| Metric | Analysis (home vs away) | Source |
|---|---|---|
| Home Advantage | Seattle Mariners at home — MLB historical home win rate ~.535 (ballpark familiarity, no travel) | MLB StatsAPI |
| Pythagorean Expectation | Home 45.8% (640 RS/702 RA) vs Away 43.8% (635/728) — strength from runs scored/allowed | MLB StatsAPI |
| Season Win% | Home 74-84 (.468) vs Away 60-98 (.380) | MLB StatsAPI |
| Last 10 Games Form | Home 5-5 vs Away 4-6 · Home W1 | MLB StatsAPI |
| Home/Away Split | Home team home 41-36 · away team away 26-51 | MLB StatsAPI |
| Team OBP | Home .312 vs Away .310 — foundation of scoring | MLB StatsAPI |
| Team SLG | Home .378 vs Away .369 (OPS .690/.679) | MLB StatsAPI |
| Team ERA | Home 4.20 vs Away 4.26 — lower is better | MLB StatsAPI |
| Team WHIP | Home 1.26 vs Away 1.35 — baserunners allowed per inning (lower is better) | MLB StatsAPI |
| Starting Pitcher Matchup | Home Bryan Woo (ERA 3.92) vs Away Grayson Rodriguez (ERA 5.96) | MLB StatsAPI |
| Hitting Detail (BABIP, K, BB) | Home BABIP .277 · K 1368 · BB 538 / Away BABIP .297 · K 1507 · BB 493 (BABIP is luck-driven → not factored into probability) | MLB StatsAPI |
| Pitching Detail (K/BB, HR9) | Home K/BB 3.19 · HR9 1.23 / Away K/BB 2.27 · HR9 1.04 | MLB StatsAPI |
Qualitative & folklore factors 3 factors · fully disclosed
Qualitative · Angels' 100-Loss Avoidance
The Angels are battling the Athletics to avoid a 100-loss season, which could significantly impact their motivation for this game.
Basis: LLM · news · Angels, Athletics battle to avoid 100-loss seasons
Qualitative · End-of-Season Slump
Reports indicate both the Angels and Mariners 'phoned in' their end-of-season games, potentially affecting the overall intensity and performance in this matchup.
Basis: LLM · news · The Angels And The Mariners Phoned In Their End-Of
Qualitative · Mariners' Frustration & Focus
The Mariners, despite recent frustration against the Rockies, are determined to maintain focus in their opener, which could carry over into this series opener against the Angels.
Basis: LLM · news · Frustrated Mariners determined to keep focus in op
12 source headlines (auto-collected · basis disclosed)
- Los Angeles Angels at Seattle Mariners - Where to Watch, Stream Info, TV Channel, and Live Updates (September 24, 2026)
- Mariners host the Angels to begin 4-game series
- Statcast Game Preview: Los Angeles Angels at Seattle Mariners - 2026-09-26
- Connor Prielipp fires 7 strong innings as Twins blank Angels
- The Angels And The Mariners Phoned In Their End-Of-Season Game
- Angels vs Mariners match player stats | 2026 Thursday, September 24th
- An In-Depth Conversation with Former Seattle Mariners Star Mark Langston
- Seattle Mariners vs. Los Angeles Angels Series Sept. 24-27: Odds, Starting Pitchers & Predictions
Frequently asked questions This game's prediction summary
Los Angeles Angels vs Seattle Mariners — who's more likely to win?
SealedSlate's logistic-regression statistical model gives Seattle Mariners a 69% chance to win (Home 69% · Away 31%). MLB · 2026-09-25 10:40 KST.
How was the 68.9% home-win probability calculated?
Starting from a 50% baseline, we additively accumulate the log-odds contributions of 12 proven structured statistical metrics to reach the final 68.9%. Each factor's %p contribution is fully disclosed on the page; qualitative and folklore factors are not reflected in the probability.
Can this prediction be altered later?
No. Every prediction is sealed with a SHA-256 hash before the game starts and permanently recorded in the track record, making after-the-fact changes impossible. SealedSlate runs a transparent ledger that never inflates the hit rate and leaves missed predictions exactly as they were.
We don't compete on hit rate — every factor is fully disclosed and labeled. Only 📊 structured stats feed the probability (each factor's contribution shown in %p); ⚔️🔮 are context to weigh. Predictions are locked and sealed before the game — verify the hits directly on the track record.