Seattle Mariners @ Los Angeles Angels
SMAwaySeattle Mariners51%
@LAAHomeLos Angeles Angels49%
Model PickSeattle Mariners 51%Market edge — disclosed after closing odds are collectedEvidence 12 structured · 1 qualitative
AI Summary grounded in real data · zero hallucination
Our model projects a Seattle Mariners victory, primarily driven by a positive delta in the 'Starting Pitcher Matchup'. However, the Mariners face disadvantages in 'Team WHIP' and 'Season Win%', and with no calculated market edge, confidence in this pick is limited.
Logistic-regression statistical model — predicts Seattle Mariners vs Los Angeles Angels 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 49% home win was derived
Home Advantage+2.5
Pythagorean Expectation-0.5
Season Win%-1.6
Last 10 Games Form-1.2
Home/Away Split+0.1
Team OBP-0.6
Team SLG-0.6
Team WHIP-2.2
Starting Pitcher Matchup+3.6
Baseline 50% → final home win49.4%
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 | Los Angeles Angels at home — MLB historical home win rate ~.535 (ballpark familiarity, no travel) | MLB StatsAPI |
| Pythagorean Expectation | Home 44.6% (604 RS/680 RA) vs Away 45.9% (612/670) — strength from runs scored/allowed | MLB StatsAPI |
| Season Win% | Home 56-93 (.376) vs Away 70-80 (.467) | MLB StatsAPI |
| Last 10 Games Form | Home 3-7 vs Away 4-6 · Home L3 | MLB StatsAPI |
| Home/Away Split | Home team home 30-44 · away team away 30-45 | MLB StatsAPI |
| Team OBP | Home .308 vs Away .312 — foundation of scoring | MLB StatsAPI |
| Team SLG | Home .372 vs Away .380 (OPS .680/.692) | MLB StatsAPI |
| Team ERA | Home 4.22 vs Away 4.22 — lower is better | MLB StatsAPI |
| Team WHIP | Home 1.34 vs Away 1.25 — baserunners allowed per inning (lower is better) | MLB StatsAPI |
| Starting Pitcher Matchup | Home Reid Detmers (ERA 3.32) vs Away Kade Anderson (ERA 4.29) | MLB StatsAPI |
| Hitting Detail (BABIP, K, BB) | Home BABIP .295 · K 1416 · BB 461 / Away BABIP .278 · K 1301 · BB 509 (BABIP is luck-driven → not factored into probability) | MLB StatsAPI |
| Pitching Detail (K/BB, HR9) | Home K/BB 2.22 · HR9 1.04 / Away K/BB 3.19 · HR9 1.26 | MLB StatsAPI |
Qualitative & folklore factors 1 factors · fully disclosed
Qualitative · Losing Streak Motivation
The Los Angeles Angels are currently on a losing streak and will be highly motivated to snap it in this matchup.
Basis: LLM · news · Angels aim to end losing streak
12 source headlines (auto-collected · basis disclosed)
- Seattle Mariners at Los Angeles Angels Preview - 09/14/2026
- Seattle Mariners at Los Angeles Angels - Where to Watch, Stream Info, TV Channel, and Live Updates (September 14, 2026)
- Angels aim to end losing streak in matchup with the Mariners
- Seattle Mariners vs. Los Angeles Angels
- How to Watch Mariners vs. Angels: Streaming & TV on Sept. 14
- Los Angeles Angels vs. Seattle Mariners Series Sept. 14-16: Odds, Starting Pitchers & Predictions
- Los Angeles Angels | Notable Players, Anaheim, History, & Facts
- 2026 MLB ABS challenge system tracker: Team, player rankings
Frequently asked questions This game's prediction summary
Seattle Mariners vs Los Angeles Angels — who's more likely to win?
SealedSlate's logistic-regression statistical model gives Seattle Mariners a 51% chance to win (Home 49% · Away 51%). MLB · 2026-09-15 10:38 KST.
How was the 49.4% 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 49.4%. 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.