Chicago Cubs @ St. Louis Cardinals
CCAwayChicago Cubs65%
@SLCHomeSt. Louis Cardinals35%
Model PickChicago Cubs 65%Market edge — disclosed after closing odds are collectedEvidence 12 structured
AI Summary grounded in real data · zero hallucination
Our model projects the Chicago Cubs with a 65% win probability, favoring them over the St. Louis Cardinals. This prediction is primarily driven by the Cubs' superior 'Last 10 Games Form' (-5 deltaPct) and 'Team OBP' (-3.5 deltaPct). However, 'Home Advantage' (2.5 deltaPct) presents a key swing risk that could benefit the Cardinals. The market edge for this pick is currently uncalculated.
Logistic-regression statistical model — predicts Chicago Cubs vs St. Louis Cardinals 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 35% home win was derived
Home Advantage+2.5
Pythagorean Expectation-3.1
Season Win%-1.2
Last 10 Games Form-5
Home/Away Split-1
Team OBP-3.5
Team SLG-2.4
Team ERA+0.5
Team WHIP-1.6
Baseline 50% → final home win35.3%
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 | St. Louis Cardinals at home — MLB historical home win rate ~.535 (ballpark familiarity, no travel) | MLB StatsAPI |
| Pythagorean Expectation | Home 49.5% (469 RS/474 RA) vs Away 57.2% (548/468) — strength from runs scored/allowed | MLB StatsAPI |
| Season Win% | Home 53-53 (.500) vs Away 60-46 (.566) | MLB StatsAPI |
| Last 10 Games Form | Home 2-8 vs Away 6-4 · Home L2 | MLB StatsAPI |
| Home/Away Split | Home team home 27-30 · away team away 30-24 | MLB StatsAPI |
| Team OBP | Home .315 vs Away .339 — foundation of scoring | MLB StatsAPI |
| Team SLG | Home .381 vs Away .415 (OPS .696/.754) | MLB StatsAPI |
| Team ERA | Home 4.16 vs Away 4.22 — lower is better | MLB StatsAPI |
| Team WHIP | Home 1.34 vs Away 1.27 — baserunners allowed per inning (lower is better) | MLB StatsAPI |
| Starting Pitcher Matchup | Home TBD (ERA ?) vs Away Colin Rea (ERA 4.85) | MLB StatsAPI |
| Hitting Detail (BABIP, K, BB) | Home BABIP .278 · K 817 · BB 340 / Away BABIP .293 · K 913 · BB 460 (BABIP is luck-driven → not factored into probability) | MLB StatsAPI |
| Pitching Detail (K/BB, HR9) | Home K/BB 2.30 · HR9 1.01 / Away K/BB 2.57 · HR9 1.53 | MLB StatsAPI |
Qualitative & folklore factors None
This game has no extracted qualitative factors — we don't invent factors without a basis.
12 source headlines (auto-collected · basis disclosed)
- Chicago Cubs at St. Louis Cardinals Preview - 07/27/2026
- Chicago Cubs vs. St. Louis Cardinals preview, Monday 7/27, 6:45 CT
- Cubs vs. Cardinals: How to Watch, Rain Delay — Wainwright on the WBC
- St. Louis Cardinals Game Discussion vs Chicago Cubs Monday Night
- Cubs vs. Cardinals Lineup: Slumping Bregman Returns, Can PCA Stay Hot? More
- Cubs 7-3 Cardinals (Jul 27, 2026) Game Recap
- St. Louis Cardinals Game Discussion vs Chicago Cubs Monday Night
- How to watch Cubs vs. Cardinals: TV channel and streaming options for July 27
Frequently asked questions This game's prediction summary
Chicago Cubs vs St. Louis Cardinals — who's more likely to win?
SealedSlate's logistic-regression statistical model gives Chicago Cubs a 65% chance to win (Home 35% · Away 65%). MLB · 2026-07-29 08:45 KST.
How was the 35.3% 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 35.3%. 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.