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
53.2%2266/4258 W
Role
Sort
| # | Player | Team | W/C | Win% | Net RE | Net WPA | CDQ |
|---|---|---|---|---|---|---|---|
| 4 |  Drake Baldwin | ATL | 21/28 | 75% | +3.34 | +0.219 | +12.09 |
| 5 |  Carson Kelly | CHC | 28/34 | 82% | +6.58 | +0.584 | +11.80 |
| 6 |  Miguel Amaya | CHC | 25/40 | 63% | +2.53 | +0.180 | +9.64 |
| 7 |  J.T. Realmuto | PHI | 23/30 | 77% | +4.45 | +0.446 | +8.13 |
| 8 |  Iván Herrera | STL | 24/39 | 62% | +4.89 | +0.575 | +7.80 |
| 9 |  Victor Caratini | MIN | 31/48 | 65% | +4.29 | +0.388 | +7.58 |
| 10 |  Austin Wells | NYY | 30/50 | 60% | +3.91 | +0.250 | +7.56 |
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
Emil Jimenez called a strike on a pitch 6.3 inches outside the zone against batter Adley Rutschman in the bottom of the 5th6/11
- 10+ Win%
TEX gained 11.1% Win Probability from challenges in their game against KC6/11
- Big Overturn
Sandy León overturned a ball to a strike in the bottom of the 9th against CWS for 0.62 Runs and 12.8% Win Probability6/9
- 6+ Challenges
CIN attempted 7 challenges in their game against SD6/9
- 6+ Challenges
NYY attempted 6 challenges in their game against CLE6/9
- Missed Opp
Jose Altuve missed a chance to overturn a strike to a ball in the top of the 3rd against LAA for 1.12 Runs and 3.5% Win Probability6/9
- Missed Opp
Mitch Garver missed a chance to overturn a ball to a strike in the bottom of the 1st against BAL for 1.12 Runs and 10.2% Win Probability6/9
- 10+ Win%
- Big Overturn
- Ump Miss
Alan Porter called a ball on a pitch 5.7 inches inside the zone against pitcher Kevin Kelly in the top of the 7th6/8
- 6+ Challenges
ATH attempted 9 challenges in their game against MIL6/8
- 6+ Challenges
MIL attempted 7 challenges in their game against ATH6/8
- 6+ Challenges
- 1.5+ Runs
- 10+ Win%
- 10+ Win%
- 10+ Win%
- Ump Miss
Dan Iassogna called a strike on a pitch 5.2 inches outside the zone against batter Kyle Tucker in the bottom of the 7th6/7
- Big Overturn
Colson Montgomery overturned a strike to a ball in the top of the 5th against PHI for 0.96 Runs and 12.8% Win Probability6/7
- Ump Miss
- Ump Miss
Quinn Wolcott called a strike on a pitch 4.3 inches outside the zone against batter Spencer Horwitz in the top of the 5th6/7
- Ump Miss
D.J. Reyburn called a strike on a pitch 4.0 inches outside the zone against batter Anthony Seigler in the top of the 3rd6/7
- 6+ Challenges
CLE attempted 6 challenges in their game against TEX6/7
- 6+ Challenges
COL attempted 6 challenges in their game against MIL6/7
- 6+ Challenges
DET attempted 6 challenges in their game against SEA6/7
- 1.5+ Runs
LAA gained 1.93 net runs from challenges in their game against LAD6/7
- 10+ Win%
- 10+ Win%
- Big Overturn
Jimmy Crooks overturned a ball to a strike in the top of the 9th against CIN for 0.85 Runs and 26.1% Win Probability6/6
- 10+ Win%
- 10+ Win%
- Missed Opp
- 10+ Win%