Explore · League trends
How the challenge game is trending
League-wide distributions and how they've moved over the season: where challenges pay off by distance, how umpires are calling it, and which counts and pitch types drive overturns.
Challenge rate by distance
Of called-ball chances at each distance from the edge, the share catchers actually challenge — they jump on clear misses and back off fast toward the edge.
Overturn rate by distance
How often a challenge is overturned by how far the pitch was from the edge — near-certain deep in the zone, a coin flip right at the line.
Challenges per game over the season
Rolling challenge volume — are teams using the system more as the season goes on?
League umpire miss rate over time
Share of called pitches where the umpire disagreed with ABS, on a rolling window — is the human zone tightening as the season wears on?
Overturn rate by count
How often challenges succeed in each count (≥15 challenges).
Overturn rate by pitch type
Which pitches draw the most successful challenges (≥20 challenges).
Challenge rate by count
Where in the count teams spend challenges — the share of opportunities challenged (≥50 opps).