- accuracy
- Percentage of predictions that were correct (0–100%), only available after games complete
- bbRate
- Walk rate; percentage of plate appearances ending in a walk (0–100%)
- confidence
- Model confidence in the prediction, based on input data quality and historical accuracy
- dome
- Retractable or permanent roof protecting field from weather; eliminates wind/weather factors
- edge
- Expected value of the bet relative to public betting odds; positive = favorable for NRFI
- ensembleModel
- Combination of multiple prediction models (Poisson, Markov, ZIP) for increased robustness
- kelly
- Kelly Criterion fraction; recommended bet size as a percentage of bankroll (use cautiously)
- kRate
- Strikeout rate; percentage of plate appearances ending in strikeout (0–100%)
- nrfiRate
- Empirical rate at which neither team scored in the first inning over a sample period (0–100%)
- ops
- On-base plus slugging; combined measure of offensive output (scale: 0–1.0+)
- parkFactor
- Adjustment factor for home-run-friendly or pitcher-friendly stadiums (0.8–1.2)
- playoff
- Post-season tournament; higher intensity and different roster composition than regular season
- pNRFI
- Poisson-calculated probability that neither team scores a run in the first inning (0–100%)
- pYRFI
- Poisson-calculated probability that at least one team scores a run in the first inning (0–100%)
- relief
- A pitcher who enters the game after the starter, typically in later innings
- roi
- Return on investment if you bet at published odds on all recommendations (e.g., +12.5%)
- starter
- The primary pitcher assigned to start the game, usually pitching the first 5–7 innings
- weather
- Environmental conditions (temperature, wind direction/speed) affecting ball carry and play
- woba
- Weighted on-base average; measures offensive value per plate appearance (scale: 0–.450)
- xR
- Expected runs in the first inning, calculated from Statcast data and team stats
- yrfiRate
- Empirical rate at which a team scored in the first inning over a sample period (0–100%)
Data sources: Metrics are calculated from MLB Statcast data, weather APIs, and stadium factors. The prediction engine uses Poisson, Markov, and ZIP models to estimate first-inning run probability.
Disclaimer: These predictions are for informational purposes only and should not be construed as financial or betting advice. Past performance does not guarantee future results.