Chicago Cubs @ Pittsburgh Pirates
CCAwayChicago Cubs47%
@PPHomePittsburgh Pirates53%
Model PickPittsburgh Pirates 53%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 53% win probability, making them the pick against the Chicago Cubs. The Pirates benefit from 'Home Advantage' (deltaPct 2.5) and 'Last 10 Games Form' (deltaPct 1.2), but with no calculated market edge, betting value is unclear. A key risk factor is the Pirates' disadvantage in 'Team WHIP' (deltaPct -1).
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 53% home win was derived
Home Advantage+2.5
Pythagorean Expectation-0.6
Season Win%-0.8
Last 10 Games Form+1.2
Home/Away Split-0.1
Team OBP+0.1
Team SLG+0.8
Team ERA+0.1
Team WHIP-1
Starting Pitcher Matchup+0.4
Baseline 50% → final home win52.7%
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 54.5% (543 RS/492 RA) vs Away 56.1% (520/455) — strength from runs scored/allowed | MLB StatsAPI |
| Season Win% | Home 53-50 (.515) vs Away 57-45 (.559) | MLB StatsAPI |
| Last 10 Games Form | Home 6-4 vs Away 5-5 · Home L1 | MLB StatsAPI |
| Home/Away Split | Home team home 27-24 · away team away 27-23 | MLB StatsAPI |
| Team OBP | Home .339 vs Away .338 — foundation of scoring | MLB StatsAPI |
| Team SLG | Home .424 vs Away .413 (OPS .763/.751) | MLB StatsAPI |
| Team ERA | Home 4.26 vs Away 4.27 — lower is better | MLB StatsAPI |
| Team WHIP | Home 1.31 vs Away 1.27 — baserunners allowed per inning (lower is better) | MLB StatsAPI |
| Starting Pitcher Matchup | Home Jared Jones (ERA 4.05) vs Away Matthew Boyd (ERA 4.15) | MLB StatsAPI |
| Hitting Detail (BABIP, K, BB) | Home BABIP .322 · K 985 · BB 382 / Away BABIP .288 · K 868 · BB 448 (BABIP is luck-driven → not factored into probability) | MLB StatsAPI |
| Pitching Detail (K/BB, HR9) | Home K/BB 2.55 · HR9 1.05 / Away K/BB 2.57 · HR9 1.56 | MLB StatsAPI |
Qualitative & folklore factors 3 factors · fully disclosed
Qualitative · Prospect Call-Up Boost
The Chicago Cubs announced a roster decision regarding a promising prospect before the Pirates series, which could inject new energy into the team.
Basis: LLM · news · Chicago Cubs Announce Roster Decision on Promising
Qualitative · Key Player Demotion Impact
The Chicago Cubs quietly announced the demotion of a 24-year-old player before the Pirates series, which could negatively impact team morale or strategy.
Basis: LLM · news · Chicago Cubs Quietly Announce Demotion of 24-Year-
Qualitative · Home Win Streak Momentum
The Pittsburgh Pirates are hosting the Cubs on a 3-game home win streak, which could provide a significant boost in confidence and performance.
Basis: LLM · news · Pirates host the Cubs on 3-game home win streak
12 source headlines (auto-collected · basis disclosed)
- Chicago Cubs at Pittsburgh Pirates Preview - 07/24/2026
- Where to watch Chicago Cubs vs Pittsburgh Pirates: TV channel, start time, streaming for July 24
- Pirates Announce Starting Pitchers vs. Cubs
- Chicago Cubs vs. Pittsburgh Pirates - Live Score - July 25, 2026
- Chicago Cubs vs. Pittsburgh Pirates 7/25/26 - Stream the Game Live
- Chicago Cubs at Pittsburgh Pirates odds, picks and predictions
- Chicago Cubs Announce Roster Decision on Promising Prospect Before Pirates Series
- Pittsburgh Pirates vs. Chicago Cubs Series July 24-26: Odds, Starting Pitchers & Predictions
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 53% chance to win (Home 53% · Away 47%). MLB · 2026-07-25 07:40 KST.
How was the 52.7% 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 52.7%. 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.