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Chicago Cubs @ Cincinnati Reds

MLB · 2026-09-21 02:40 KST · Scheduled
CCAwayChicago Cubs75%
@
CRHomeCincinnati Reds25%
Model PickChicago Cubs 75%Market edge — disclosed after closing odds are collectedEvidence 12 structured · 3 qualitative
AI Summary grounded in real data · zero hallucination

Our model projects the Chicago Cubs with a 75% win probability, significantly favoring them over the Cincinnati Reds at 25%. This projection is primarily driven by the Cubs' substantial advantages in 'Team ERA' and 'Pythagorean Expectation' compared to the Reds. However, 'Home Advantage' presents a key swing risk, potentially benefiting the Reds and impacting the Cubs' win probability. The market edge for this game is currently uncalculated.

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Logistic-regression statistical model — predicts Chicago Cubs vs Cincinnati Reds 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 25% home win was derived
Home Advantage+2.5
Pythagorean Expectation-7.4
Season Win%-1.6
Last 10 Games Form-2.4
Home/Away Split-0.7
Team OBP-4.7
Team SLG-2.5
Team ERA-5.1
Team WHIP-3.5
Baseline 50% → final home win24.6%
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
MetricAnalysis (home vs away)Source
Home AdvantageCincinnati Reds at home — MLB historical home win rate ~.535 (ballpark familiarity, no travel)MLB StatsAPI
Pythagorean ExpectationHome 40.2% (641 RS/796 RA) vs Away 58.7% (826/682) — strength from runs scored/allowedMLB StatsAPI
Season Win%Home 72-83 (.465) vs Away 86-69 (.555)MLB StatsAPI
Last 10 Games FormHome 3-7 vs Away 5-5 · Home L1MLB StatsAPI
Home/Away SplitHome team home 38-42 · away team away 41-36MLB StatsAPI
Team OBPHome .307 vs Away .340 — foundation of scoringMLB StatsAPI
Team SLGHome .394 vs Away .431 (OPS .701/.771)MLB StatsAPI
Team ERAHome 4.87 vs Away 4.18 — lower is betterMLB StatsAPI
Team WHIPHome 1.45 vs Away 1.27 — baserunners allowed per inning (lower is better)MLB StatsAPI
Starting Pitcher MatchupHome Rhett Lowder (ERA 5.79) vs Away TBD (ERA ?)MLB StatsAPI
Hitting Detail (BABIP, K, BB)Home BABIP .279 · K 1474 · BB 542 / Away BABIP .291 · K 1284 · BB 650 (BABIP is luck-driven → not factored into probability)MLB StatsAPI
Pitching Detail (K/BB, HR9)Home K/BB 1.93 · HR9 1.35 / Away K/BB 2.51 · HR9 1.48MLB StatsAPI
Qualitative & folklore factors 3 factors · fully disclosed
Qualitative · Cubs Bullpen Woes
Cubs reliever Clay Holmes issued too many walks in the previous game, contributing to the team's loss, which highlights ongoing bullpen instability.
Basis: LLM · news · Too many walks, Clay Holmes
Qualitative · Reds' Momentum
The Reds started hot and rallied late to beat the Cubs in their last game, indicating strong team morale and performance.
Basis: LLM · news · Reds Start Hot, Rally Late to Beat Cubs
Qualitative · Cubs' Losing Streak Pressure
Having lost consecutive games to the Reds, the Cubs are likely under significant psychological pressure to break their losing streak, which could fuel their motivation.
Basis: LLM · news · Reds 6, Cubs 4
12 source headlines (auto-collected · basis disclosed)
  • Chicago Cubs at Cincinnati Reds Game Story, Scores/Highlights - 09/18/2026
  • Cubs vs Reds Prediction, Pick, MLB Odds for Friday, September 18
  • Cubs vs. Reds (Sep 18, 2026) Live Score
  • How to watch Cubs vs. Reds: TV channel and streaming options for September 18
  • Cincinnati Reds Start Hot, Rally Late to Beat Cubs 6-4
  • Reds 6, Cubs 4: Too many walks, Clay Holmes
  • Chicago Cubs at Cincinnati Reds - Where to Watch, Stream Info, TV Channel, and Live Updates (September 19, 2026)
  • How to Watch Cubs vs. Reds Saturday: Time, TV Channel, Live Stream
Frequently asked questions This game's prediction summary
Chicago Cubs vs Cincinnati Reds — who's more likely to win?
SealedSlate's logistic-regression statistical model gives Chicago Cubs a 75% chance to win (Home 25% · Away 75%). MLB · 2026-09-21 02:40 KST.
How was the 24.6% 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 24.6%. 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.