Detroit Tigers @ Chicago Cubs
DTAwayDetroit Tigers56%
@CCHomeChicago Cubs44%
Model PickDetroit Tigers 56%Market edge — disclosed after closing odds are collectedEvidence 12 structured · 4 qualitative
The model favors Detroit Tigers at 56% — a moderate favorite. The main drivers are Starting Pitcher Matchup, Team ERA, offset by Team OBP.
Logistic-regression statistical model — predicts Detroit Tigers vs Chicago Cubs 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 44% home win was derived
Home Advantage+2.5
Pythagorean Expectation+0.8
Season Win%+1.6
Last 10 Games Form-1.2
Home/Away Split+2.2
Team OBP+3.5
Team SLG+0.9
Team ERA-6
Team WHIP-1.5
Starting Pitcher Matchup-8.8
Baseline 50% → final home win44.1%
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 | Chicago Cubs at home — MLB historical home win rate ~.535 (ballpark familiarity, no travel) | MLB StatsAPI |
| Pythagorean Expectation | Home 55.7% (508 RS/448 RA) vs Away 53.7% (426/393) — strength from runs scored/allowed | MLB StatsAPI |
| Season Win% | Home 56-44 (.560) vs Away 47-53 (.470) | MLB StatsAPI |
| Last 10 Games Form | Home 6-4 vs Away 7-3 · Home L1 | MLB StatsAPI |
| Home/Away Split | Home team home 29-21 · away team away 20-30 | MLB StatsAPI |
| Team OBP | Home .337 vs Away .313 — foundation of scoring | MLB StatsAPI |
| Team SLG | Home .413 vs Away .400 (OPS .750/.713) | MLB StatsAPI |
| Team ERA | Home 4.29 vs Away 3.59 — lower is better | MLB StatsAPI |
| Team WHIP | Home 1.28 vs Away 1.22 — baserunners allowed per inning (lower is better) | MLB StatsAPI |
| Starting Pitcher Matchup | Home David Peterson (ERA 6.45) vs Away Framber Valdez (ERA 4.10) | MLB StatsAPI |
| Hitting Detail (BABIP, K, BB) | Home BABIP .288 · K 847 · BB 436 / Away BABIP .279 · K 875 · BB 354 (BABIP is luck-driven → not factored into probability) | MLB StatsAPI |
| Pitching Detail (K/BB, HR9) | Home K/BB 2.54 · HR9 1.56 / Away K/BB 2.82 · HR9 1.00 | MLB StatsAPI |
Qualitative & folklore factors 4 factors · fully disclosed
Qualitative · Bullpen Strain
The Detroit Tigers played a 10-inning extra-inning game against the Chicago Cubs, likely leading to significant bullpen usage and fatigue.
Basis: LLM · news · scamper in 10th inning to beat Chicago Cubs
Qualitative · Key Bullpen Injury
The Cubs' bullpen depth is impacted as reliever Maton was placed back on the IL with right knee tendinitis.
Basis: LLM · news · place Maton back on the IL with right knee tendini
Qualitative · Starter Returns
The Cubs activated starting pitcher Taillon, bolstering their rotation, though he is not the starter for this game.
Basis: LLM · news · Cubs activate Taillon
Qualitative · Road Trip Fatigue
The Tigers are opening the second half of their road trip, which could lead to accumulated fatigue from travel and game schedule.
Basis: LLM · news · Tigers open up second half of road trip
12 source headlines (auto-collected · basis disclosed)
- Detroit Tigers at Chicago Cubs Game Story, Scores/Highlights - 07/20/2026
- Tigers open up second half of road trip vs Cubs on Monday
- Detroit Tigers rain delay: Game vs Chicago Cubs pushed by 30 minutes
- Cubs activate Taillon and place Maton back on the IL with right knee tendinitis
- GameThread: Detroit Tigers vs. Chicago Cubs, 8:05 p.m.
- How to watch Tigers vs. Cubs: TV channel and streaming options for July 20
- Tigers vs. Cubs (21 Jul, 2026) Live Score
- How to Watch Tigers Series Opener vs. Cubs: TV Channel, Radio, Injuries
Frequently asked questions This game's prediction summary
Detroit Tigers vs Chicago Cubs — who's more likely to win?
SealedSlate's logistic-regression statistical model gives Detroit Tigers a 56% chance to win (Home 44% · Away 56%). MLB · 2026-07-22 09:05 KST.
How was the 44.1% 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 44.1%. 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.