Athletics @ Cleveland Guardians
ATHAwayAthletics15%
@CGHomeCleveland Guardians85%
Model PickCleveland Guardians 85%Market edge — disclosed after closing odds are collectedEvidence 12 structured · 1 qualitative
AI Summary grounded in real data · zero hallucination
Our model projects an 85% win probability for the Cleveland Guardians, indicating a strong advantage over the Athletics. This forecast is primarily driven by the Guardians' dominant 'Team ERA' and 'Starting Pitcher Matchup' advantages, alongside their superior 'Pythagorean Expectation'. However, with no market edge calculated, the quantitative value of this pick remains undefined.
Logistic-regression statistical model — predicts Athletics vs Cleveland Guardians 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 85% home win was derived
Home Advantage+2.5
Pythagorean Expectation+5.1
Season Win%+2.1
Last 10 Games Form+4.7
Home/Away Split+1.1
Team OBP-0.3
Team SLG-1.6
Team ERA+12.1
Team WHIP+4.1
Starting Pitcher Matchup+5.1
Baseline 50% → final home win85%
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 | Cleveland Guardians at home — MLB historical home win rate ~.535 (ballpark familiarity, no travel) | MLB StatsAPI |
| Pythagorean Expectation | Home 50.1% (648 RS/647 RA) vs Away 37.2% (670/892) — strength from runs scored/allowed | MLB StatsAPI |
| Season Win% | Home 80-75 (.516) vs Away 61-94 (.394) | MLB StatsAPI |
| Last 10 Games Form | Home 7-3 vs Away 3-7 · Home W4 | MLB StatsAPI |
| Home/Away Split | Home team home 40-40 · away team away 32-48 | MLB StatsAPI |
| Team OBP | Home .315 vs Away .317 — foundation of scoring | MLB StatsAPI |
| Team SLG | Home .378 vs Away .401 (OPS .693/.718) | MLB StatsAPI |
| Team ERA | Home 3.80 vs Away 5.46 — lower is better | MLB StatsAPI |
| Team WHIP | Home 1.26 vs Away 1.50 — baserunners allowed per inning (lower is better) | MLB StatsAPI |
| Starting Pitcher Matchup | Home Gavin Williams (ERA 3.78) vs Away Jack Perkins (ERA 6.14) | MLB StatsAPI |
| Hitting Detail (BABIP, K, BB) | Home BABIP .281 · K 1226 · BB 547 / Away BABIP .290 · K 1316 · BB 501 (BABIP is luck-driven → not factored into probability) | MLB StatsAPI |
| Pitching Detail (K/BB, HR9) | Home K/BB 2.86 · HR9 1.10 / Away K/BB 2.13 · HR9 1.52 | MLB StatsAPI |
Qualitative & folklore factors 1 factors · fully disclosed
Qualitative · Guardians' Hot Bats
The Guardians' offense is red-hot, scoring 12 runs in their last game with Bazzana and Ramirez hitting homers, and Martinez delivering a 4-hit performance.
Basis: LLM · news · Guardians 12-6 Athletics (Sep 19, 2026) Game Stats
12 source headlines (auto-collected · basis disclosed)
- Athletics at Cleveland Guardians Game Story, Scores/Highlights - 09/18/2026
- Guardians 12-6 Athletics (Sep 19, 2026) Game Stats
- How to watch Athletics vs. Guardians: TV channel and streaming options for September 19
- How to watch Athletics vs. Guardians: TV channel and streaming options for September 19
- Athletics at Cleveland Guardians Game Story, Scores/Highlights - 09/19/2026
- Best photos from Cleveland Guardians vs. Athletics series
- Guardians score, recap vs A's. Bazzana, Ramirez power Cleveland to win
- Martinez leads Guardians against the Athletics following 4-hit performance
Frequently asked questions This game's prediction summary
Athletics vs Cleveland Guardians — who's more likely to win?
SealedSlate's logistic-regression statistical model gives Cleveland Guardians a 85% chance to win (Home 85% · Away 15%). MLB · 2026-09-21 02:40 KST.
How was the 85% 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 85%. 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.