Chicago Cubs @ Pittsburgh Pirates
CCAwayChicago Cubs50%
@PPHomePittsburgh Pirates50%
Model PickPittsburgh Pirates 50%Market edge — disclosed after closing odds are collectedEvidence 12 structured · 3 qualitative
AI Summary grounded in real data · zero hallucination
Our model projects the Pittsburgh Pirates with a 50% win probability, seeing an even matchup against the Chicago Cubs. The most significant positive factor for the Pirates is the 'Starting Pitcher Matchup' (deltaPct 5.3), though this is somewhat offset by 'Last 10 Games Form' (deltaPct -2.5) and 'Home Advantage' (deltaPct 2.5). The market edge for this pick is currently uncalculated.
Logistic-regression statistical model — predicts Chicago Cubs vs Pittsburgh Pirates 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 50% home win was derived
Home Advantage+2.5
Pythagorean Expectation-1.5
Season Win%-1.1
Last 10 Games Form-2.5
Home/Away Split-0.6
Team OBP-0.3
Team SLG+0.5
Team ERA-1
Team WHIP-1.2
Starting Pitcher Matchup+5.3
Baseline 50% → final home win50.2%
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 | Pittsburgh Pirates at home — MLB historical home win rate ~.535 (ballpark familiarity, no travel) | MLB StatsAPI |
| Pythagorean Expectation | Home 53.4% (545 RS/506 RA) vs Away 57.1% (534/457) — strength from runs scored/allowed | MLB StatsAPI |
| Season Win% | Home 53-52 (.505) vs Away 59-45 (.567) | MLB StatsAPI |
| Last 10 Games Form | Home 5-5 vs Away 7-3 · Home L3 | MLB StatsAPI |
| Home/Away Split | Home team home 27-26 · away team away 29-23 | MLB StatsAPI |
| Team OBP | Home .337 vs Away .339 — foundation of scoring | MLB StatsAPI |
| Team SLG | Home .420 vs Away .413 (OPS .757/.752) | MLB StatsAPI |
| Team ERA | Home 4.30 vs Away 4.19 — lower is better | MLB StatsAPI |
| Team WHIP | Home 1.31 vs Away 1.26 — baserunners allowed per inning (lower is better) | MLB StatsAPI |
| Starting Pitcher Matchup | Home Braxton Ashcraft (ERA 3.95) vs Away Jameson Taillon (ERA 5.38) | MLB StatsAPI |
| Hitting Detail (BABIP, K, BB) | Home BABIP .320 · K 998 · BB 386 / Away BABIP .291 · K 895 · BB 455 (BABIP is luck-driven → not factored into probability) | MLB StatsAPI |
| Pitching Detail (K/BB, HR9) | Home K/BB 2.57 · HR9 1.05 / Away K/BB 2.57 · HR9 1.52 | MLB StatsAPI |
Qualitative & folklore factors 3 factors · fully disclosed
Qualitative · Cubs' Batting Surge
The Cubs' offense exploded in their previous game against the Pirates, securing a dominant 11-0 victory.
Basis: LLM · news · Cubs 11-0 Pirates (Jul 25, 2026) Final Score
Qualitative · Pirates' Pitching Strain
The previous day's 11-run loss likely put significant strain on the Pirates' bullpen, potentially impacting their pitching strategy for the upcoming game.
Basis: LLM · news · Cubs 11-0 Pirates (Jul 25, 2026) Final Score
Qualitative · Cubs' Defensive Focus
The Cubs displayed strong defensive play in a recent game, highlighted by Pete Crow-Armstrong's homer and key defensive gems, indicating high team focus.
Basis: LLM · news · Cubs 3, Pirates 2: Defensive gems, a Pete Crow-Arm
12 source headlines (auto-collected · basis disclosed)
- Chicago Cubs at Pittsburgh Pirates Game Story, Scores/Highlights - 07/24/2026
- Where to watch Chicago Cubs vs Pittsburgh Pirates: TV channel, start time, streaming for July 25
- Chicago Cubs at Pittsburgh Pirates Game Story, Scores/Highlights - 07/25/2026
- Cubs 11-0 Pirates (Jul 25, 2026) Final Score
- Chicago Cubs at Pittsburgh Pirates Preview - 07/25/2026
- Cubs vs. Pirates (Jul 26, 2026) Live Score
- Cubs 3, Pirates 2: Defensive gems, a Pete Crow-Armstrong homer, and Matthew Boyd’s pitching
- Cubs vs Pirates Prediction, Picks & Odds for Tonight's MLB Game
Frequently asked questions This game's prediction summary
Chicago Cubs vs Pittsburgh Pirates — who's more likely to win?
SealedSlate's logistic-regression statistical model gives Pittsburgh Pirates a 50% chance to win (Home 50% · Away 50%). MLB · 2026-07-27 02:35 KST.
How was the 50.2% 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 50.2%. 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.