Seattle Mariners @ Athletics
SMAwaySeattle Mariners64%
@ATHHomeAthletics36%
Model PickSeattle Mariners 64%Market edge — disclosed after closing odds are collectedEvidence 12 structured · 3 qualitative
AI Summary grounded in real data · zero hallucination
Our model projects a 64% win probability for the Seattle Mariners, making them the recommended pick, though the edge against the market is uncalculated. The primary drivers supporting this pick are 'Last 10 Games Form' and 'Team SLG', which favor Seattle. However, a significant negative delta in 'Team ERA' remains the primary swing risk that could undermine their pitching stability.
Logistic-regression statistical model — predicts Seattle Mariners vs Athletics 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 36% home win was derived
Home Advantage+2.5
Pythagorean Expectation-2.3
Season Win%-1.1
Last 10 Games Form+2.5
Home/Away Split-0.2
Team OBP+1.5
Team SLG+2.2
Team ERA-9.7
Team WHIP-5.9
Starting Pitcher Matchup-3.8
Baseline 50% → final home win35.8%
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 | Athletics at home — MLB historical home win rate ~.535 (ballpark familiarity, no travel) | MLB StatsAPI |
| Pythagorean Expectation | Home 38.6% (647 RS/833 RA) vs Away 44.5% (586/661) — strength from runs scored/allowed | MLB StatsAPI |
| Season Win% | Home 60-88 (.405) vs Away 69-79 (.466) | MLB StatsAPI |
| Last 10 Games Form | Home 7-3 vs Away 5-5 · Home W2 | MLB StatsAPI |
| Home/Away Split | Home team home 28-45 · away team away 29-44 | MLB StatsAPI |
| Team OBP | Home .319 vs Away .309 — foundation of scoring | MLB StatsAPI |
| Team SLG | Home .404 vs Away .374 (OPS .723/.683) | MLB StatsAPI |
| Team ERA | Home 5.33 vs Away 4.22 — lower is better | MLB StatsAPI |
| Team WHIP | Home 1.49 vs Away 1.25 — baserunners allowed per inning (lower is better) | MLB StatsAPI |
| Starting Pitcher Matchup | Home Gage Jump (ERA 5.12) vs Away Bryan Woo (ERA 4.03) | MLB StatsAPI |
| Hitting Detail (BABIP, K, BB) | Home BABIP .293 · K 1262 · BB 482 / Away BABIP .275 · K 1291 · BB 497 (BABIP is luck-driven → not factored into probability) | MLB StatsAPI |
| Pitching Detail (K/BB, HR9) | Home K/BB 2.14 · HR9 1.50 / Away K/BB 3.23 · HR9 1.25 | MLB StatsAPI |
Qualitative & folklore factors 3 factors · fully disclosed
Qualitative · Walk-off Loss Hangover
The Mariners suffered a tough 6-5 walk-off loss in the 10th inning of their last game against the Athletics, which could negatively impact team morale.
Basis: LLM · news · Donovan Walton hits a 10th-inning walk-off 2-run h
Qualitative · Woo's Strong Recent Start
Mariners' starting pitcher Bryan Woo recently led his team to a 2-0 victory over the Athletics, indicating he's in good form against this opponent.
Basis: LLM · news · Woo, Raleigh and Crawford power the Mariners to a
Qualitative · Revenge Game Motivation
Having just lost to the Athletics on a walk-off, the Mariners will likely be highly motivated to get revenge in this game.
Basis: LLM · news · Regrets: Mariners vs. Athletics Series Preview
12 source headlines (auto-collected · basis disclosed)
- Seattle Mariners at Athletics Game Story, Scores/Highlights - 09/11/2026
- Athletics at Seattle Mariners Game Story, Scores/Highlights - 09/06/2026
- Seattle Mariners at Athletics - Where to Watch, Stream Info, TV Channel, and Live Updates (September 11, 2026)
- Seattle Mariners at Athletics MLB Prediction, Picks & Odds for Sept. 11, 2026
- Regrets: Mariners vs. Athletics Series Preview
- Athletics at Seattle Mariners MLB Prediction, Picks & Odds for Sept. 6, 2026
- Photos: Seattle Mariners take on Athletics
- Donovan Walton hits a 10th-inning walk-off 2-run homer as the Athletics beat the Mariners 6-5
Frequently asked questions This game's prediction summary
Seattle Mariners vs Athletics — who's more likely to win?
SealedSlate's logistic-regression statistical model gives Seattle Mariners a 64% chance to win (Home 36% · Away 64%). MLB · 2026-09-13 10:40 KST.
How was the 35.8% 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 35.8%. 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.