Latest from the Blog

Measuring ABS Decision Quality
Evaluating each pitch based on its likelihood to be challenged gives us insight into who is tapping at the right time
Nate Burke · Apr 4, 2026
Leaderboard
53.0%1717/3238 W
Role
Sort
| # | Player | Team | W/C | Win% | Net RE | Net WPA | CDQ |
|---|---|---|---|---|---|---|---|
| 4 | ATL | 21/28 | 75% | +3.34 | +0.219 | +12.09 | |
| 5 | CHC | 24/28 | 86% | +5.95 | +0.497 | +12.01 | |
| 6 | MIN | 21/29 | 72% | +3.13 | +0.291 | +9.18 | |
| 7 | STL | 21/34 | 62% | +4.42 | +0.536 | +5.91 | |
| 8 | SEA | 20/34 | 59% | +5.02 | +0.456 | +5.79 | |
| 9 | PHI | 13/17 | 77% | +2.36 | +0.281 | +5.69 | |
| 10 | LAD | 30/42 | 71% | +4.98 | +0.525 | +5.68 |
League Challenge Trends
Average Challenge Inning
7 day rolling avg of each team's first challenge per game
Average:Challenge:Team:Outcome:
League
Recent Activity
Notable events from the last 7 days
- Ump Miss
Willie Traynor called a ball on a pitch 4.8 inches inside the zone against pitcher Mitch Keller in the bottom of the 6th5/24
- Ump Miss
Willie Traynor called a ball on a pitch 6.1 inches inside the zone against pitcher Dylan Cease in the top of the 1st5/24
- Missed Opp
Jackson Holliday missed a chance to overturn a strike to a ball in the bottom of the 9th against DET for 0.22 Runs and 8.3% Win Probability5/24
- 6+ Challenges
CLE attempted 7 challenges in their game against DET5/21
- Big Overturn
Kyle Karros overturned a strike to a ball in the bottom of the 4th against TEX for 1.79 Runs and 21.8% Win Probability5/20
- 1.5+ Runs
COL gained 2.37 net runs from challenges in their game against TEX5/20
- 10+ Win%
COL gained 31.2% Win Probability from challenges in their game against TEX5/20
- Big Overturn
Max Muncy overturned a strike to a ball in the top of the 9th against SD for 0.42 Runs and 10.5% Win Probability5/19
- Missed Opp
Mitch Garver missed a chance to overturn a ball to a strike in the top of the 8th against CWS for 0.70 Runs and 15.8% Win Probability5/19
- Missed Opp
Christopher Morel missed a chance to overturn a strike to a ball in the bottom of the 5th against ATL for 0.99 Runs and 8.1% Win Probability5/19
- 10+ Win%
CIN gained 11.8% Win Probability from challenges in their game against PHI5/19
- 10+ Win%
LAD gained 10.5% Win Probability from challenges in their game against SD5/19
- Big Overturn
Freddie Freeman overturned a strike to a ball in the top of the 7th against SD for 0.62 Runs and 11.6% Win Probability5/18
- Missed Opp
Rob Refsnyder missed a chance to overturn a strike to a ball in the bottom of the 6th against CWS for 0.81 Runs and 1.9% Win Probability5/18
- 10+ Win%
LAD gained 11.3% Win Probability from challenges in their game against SD5/18

