Automated Ball-Strike Challenge Tracker
2026 MLB Season
Teams
Team leaderboard with challenge stats, overturn rates, and opponent breakdowns
Players
Player leaderboard with challenge counts and overturn rates by position
Umpires
Umpire accuracy rankings and challenge frequency per game
The Leaderboard and the Loserboard
Best and worst challengers — top and bottom players, teams, and umpires by overturn rate
Pitch Analysis
Strike zone plot, pitch type breakdowns, and distance-from-edge analysis
Overview (In Progress)
Daily trends, challenge breakdowns by role, call type, and inning
Overturn Rate Over Time
Daily Challenges (Last 7 Days)
By Challenger Role
By Original Call
By Inning
Team Leaderboard
| # | Team | Challenges Made | ||||
|---|---|---|---|---|---|---|
| Total | OT | OT% | ||||
Player Leaderboard
| # | Player | Challenges | Overturned | OT% |
|---|
Umpire Leaderboard
| # | Umpire | Challenges | Overturned | OT% |
|---|
By Pitch Type Group
By Pitch Type
Strike Zone — Challenge Locations
Distance from Zone Edge
The Leaderboard
Top Players
| # | Player | Challenges | OT% |
|---|
Top Teams
| # | Team | Challenges | OT% |
|---|
Most Accurate Umpires
| # | Umpire | Challenges | OT% |
|---|
The Loserboard
Bottom Players
| # | Player | Challenges | OT% |
|---|
Bottom Teams
| # | Team | Challenges | OT% |
|---|
Least Accurate Umpires
| # | Umpire | Challenges | OT% |
|---|
Worst Missed Calls (Overturned, farthest from zone)
| # | Date | Game | Inning | Count | Pitch | MPH | Call | Umpire | Challenger | Dist |
|---|
Worst Challenges (Confirmed, farthest from zone)
| # | Date | Game | Inning | Count | Pitch | MPH | Call | Umpire | Challenger | Dist |
|---|