The Slip Lab is a live MLB intelligence system. This guide explains where to start, what each page is built to answer, how to read its metrics and tags, and how to combine signals without mistaking any one score for certainty.
The site is most useful as a funnel: begin with the slate, narrow the field, inspect the matchup, and confirm the game environment before making a decision.
Check the MLB live indicator, update time, game count and probable-pitcher status. A confirmed lineup is stronger evidence than a projected lineup.
Use AI Says, Slate, or the Decision Center to create a shortlist. Treat these as discovery tools—not final answers.
On the Slate, use Compare game to select up to five matchups, then open the consolidated analysis. It places the existing pitcher risk, top hitter score, lineup, weather and bullpen signals side by side without creating a separate score.
Open Pitcher Vulnerability and Matchup Lab. Look for a vulnerable starter, relevant handedness and pitch-type damage that supports the hitter.
Use Power Zones and the player-card Zones tab. Strong hitter zones are most useful when they overlap the pitcher’s leak areas.
Review weather, park, bullpen support and batting-order position. Lineup protection and expected plate appearances can change the quality of the opportunity.
Use Results and the Hall of Fame to compare pregame signals with what happened. A good process can miss; a home run alone does not prove the process was good.
Each page answers a different question. Using the right page for the right job keeps one attractive number from dominating the decision.
The game-first view of today’s MLB schedule.
The broad player pool when you want every available option.
A comparison surface for hitter-versus-pitcher context.
Probable starters ranked by a live 0–100 risk index.
Where hitter damage meets pitcher leak locations.
The focused shortlist hub for model-backed candidates and signal tags.
Players whose recent signals are strengthening now live inside AI Says.
Signal movement and recent-form reads now appear inside player-card explanations.
Temperature, wind, roof and carry context by venue.
Tracked home runs with distance, exit velocity and pregame signals.
Purpose-built sections for best picks, safety, value, pitch type, weather and bullpen.
The canonical public AI sections and player explanations.
Historical AI calls connected to actual home-run results.
The most detailed view of one player’s complete signal stack.
Scores on different pages answer different questions. Never treat two metrics with similar-looking numbers as interchangeable.
| Metric | What it tells you | How to use it |
|---|---|---|
| AI score | The AI layer’s combined read of the available player and matchup signals. | Use it for ordering candidates, then inspect the supporting explanation. |
| HR Model | The model’s home-run signal for the current player profile. | Compare players on the same live slate. Do not read it as a sportsbook price or guarantee. |
| HR Confidence | A composite board-strength signal used to rank and group candidates. | Look for support from power, pitcher, zone and environment instead of using confidence alone. |
| Power score | The strength of the hitter’s power profile. | Power is the foundation. Matchup and environment should confirm it rather than manufacture it. |
| Risk Index | A 0–100 ranking of probable-starter vulnerability. | Higher risk identifies a pitcher/offense matchup to investigate. It is not HR probability. |
| Pitch edge | How well a hitter’s damage profile matches the opposing pitcher’s pitch mix or attack. | Prioritize edges tied to pitches the starter is likely to throw. |
| Zone overlap | Where hitter damage zones align with pitcher leak zones. | More meaningful when the pitch type, handedness and likely attack location also agree. |
| Recent form | Short-term movement in results or underlying contact signals. | Use as confirmation. Small samples should not outweigh stable power and matchup evidence. |
| Barrel / BBL | Barreled-contact information or a displayed barrel-rate label. | Use it as evidence of ideal power contact; verify the context shown on the player card. |
| Exit velocity (EV) | How hard a tracked ball was hit. | Higher EV supports contact authority, but launch angle and location still determine the outcome. |
| ISO | Isolated power: extra-base production separated from batting average. | Use it to distinguish true power from a batting-average-driven profile. |
| SLG / OPS | Slugging measures total-base power; OPS combines on-base and slugging production. | Useful context for overall offensive quality, not a direct home-run forecast. |
| ERA / WHIP / HR allowed | Run prevention, baserunner traffic and home-run history for the pitcher. | Read together with innings and sample size. One extreme number in a short sample can mislead. |
| Weather / carry | How temperature, wind, roof and venue may affect flight. | Use after hitter and matchup quality. Weather amplifies power; it does not create it. |
| Bullpen support | Potential late-game opportunity after the starter exits. | Useful for full-game HR exposure, especially when the opposing relief group is vulnerable. |
Some displayed values are normalized scores or component strengths. Always use the page label and explanation to understand what the number represents.
The zone grid divides the hitting area into locations. Color strength helps show where damage is weakest or strongest.
| Zone Overlap | The primary hitter-versus-pitcher view. It highlights locations where the hitter’s damage and the pitcher’s leak profile intersect. | |
| Pitcher Leak | Locations where the pitcher has been most vulnerable to damage. | |
| AVG | Batting average by zone. It describes hit frequency, not power by itself. | |
| ISO | Isolated power by zone. It is one of the cleaner ways to locate extra-base damage. | |
| SLG | Slugging damage by zone, combining hit frequency and total-base impact. | |
| HR | Home-run production by zone. Read it with opportunity and sample size. | |
A hitter’s hot area matters most when the opposing pitcher is likely to attack—or leak—into the same location.
The card is designed to move from explanation to evidence. Not every tab will have the same amount of data for every player.
| Why | The model’s plain-language case for keeping the player on the board, including supporting signals and risks. | |
| Recent | Short-term form and recent performance. Look for contact-quality support, not results alone. | |
| Zones | Hitter damage, pitcher leaks and overlap by location. | |
| Pitches | Pitch-type matchup. Focus on pitches the opponent throws often enough for the edge to matter. | |
| Spot | Batting order, lineup protection and opportunity context. | |
| Splits | Performance by pitcher handedness or relevant split. | |
| Hist | Historical matchup information where available. Treat small batter-versus-pitcher samples cautiously. | |
| Spray | Batted-ball direction and pull tendencies, useful with park dimensions and wind direction. | |
| Stats | The broader statistical profile behind the current grade. | |
| L7G | Last-seven-game context. Useful for form, but inherently a short sample. | |
| BP | Bullpen context for later plate appearances. | |