ABS Challenges

2026

BOARD

CHAL. ORG.

OPP. ORG.

PITCH TYPE

ATTACK ZONE

IN/OUT OF ZONECHAL. CONF. REQ.

GROUP BY

MIN. CHAL.MIN. OPP. CHAL.

RK
	LEAGUE	−0.4	+0.0	4765	2328	2437	49%	646	324	4.5%	4.5%	−0.0	15681	3168	66%	20%
1	Kansas City Royals	+26.4	+4.8	155	85	70	55%	25	11	4.2%	4.6%	−0.3	535	113	73%	21%
2	Chicago Cubs	+26.0	+6.1	162	83	79	51%	20	16	4.0%	4.3%	−0.3	567	117	72%	21%
3	Athletics	+23.7	+4.0	155	88	67	57%	23	8	4.8%	4.9%	−0.0	512	114	74%	22%
4	Detroit Tigers	+17.2	+2.7	176	93	83	53%	26	10	4.7%	4.8%	−0.1	575	124	70%	22%
5	New York Yankees	+15.6	+0.8	185	96	89	52%	23	10	5.2%	4.3%	+1.0	478	121	65%	25%
6	Arizona Diamondbacks	+15.4	+1.9	144	82	62	57%	19	7	3.5%	4.1%	−0.6	555	100	69%	18%
7	Cincinnati Reds	+13.4	+4.1	170	92	78	54%	28	19	4.4%	5.0%	−0.6	595	119	70%	20%
8	Houston Astros	+11.4	−0.3	185	93	92	50%	17	11	5.5%	4.1%	+1.4	465	117	63%	25%
9	Toronto Blue Jays	+9.3	+1.7	153	84	69	55%	21	8	4.5%	4.2%	+0.3	479	101	66%	21%
10	Los Angeles Dodgers	+8.4	+2.1	159	81	78	51%	25	12	4.3%	4.7%	−0.3	557	116	73%	21%
11	Philadelphia Phillies	+4.6	−0.4	186	89	97	48%	16	9	5.2%	4.2%	+1.0	508	125	67%	25%
12	Texas Rangers	+4.4	+1.6	139	70	69	50%	32	7	3.9%	4.7%	−0.8	535	97	70%	18%
13	New York Mets	+4.4	−0.3	190	96	94	51%	19	11	5.5%	4.5%	+0.9	517	119	63%	23%
14	Chicago White Sox	+1.0	−1.7	161	80	81	50%	16	7	5.1%	4.6%	+0.6	497	107	66%	22%
15	St. Louis Cardinals	−0.3	+0.2	134	60	74	45%	15	5	3.5%	4.2%	−0.7	524	87	65%	17%
16	San Francisco Giants	−4.5	−0.5	148	69	79	47%	22	9	4.0%	4.1%	−0.1	488	99	67%	20%
17	Milwaukee Brewers	−4.5	+0.9	125	58	67	46%	15	10	3.0%	4.3%	−1.2	619	87	70%	14%
18	Minnesota Twins	−4.6	−0.4	181	89	92	49%	20	22	5.6%	4.3%	+1.3	465	110	61%	24%
19	Boston Red Sox	−5.9	−1.4	175	85	90	49%	26	12	4.8%	4.6%	+0.2	543	124	71%	23%
20	Atlanta Braves	−7.2	+0.3	120	50	70	42%	21	9	3.9%	4.4%	−0.6	444	77	64%	17%
21	Washington Nationals	−7.7	+0.1	131	59	72	45%	22	8	3.7%	4.6%	−0.9	528	83	63%	16%
22	San Diego Padres	−7.8	−0.2	130	58	72	45%	14	4	3.9%	4.1%	−0.1	456	80	62%	18%
23	Baltimore Orioles	−9.3	−0.3	168	79	89	47%	28	18	4.4%	4.9%	−0.4	596	111	66%	19%
24	Miami Marlins	−9.8	−0.6	158	80	78	51%	26	15	4.4%	4.6%	−0.2	566	112	71%	20%
25	Cleveland Guardians	−11.0	−1.6	142	62	80	44%	16	11	3.8%	4.3%	−0.4	526	87	61%	17%
26	Tampa Bay Rays	−14.7	−5.0	154	71	83	46%	17	5	4.4%	4.5%	−0.1	521	101	66%	19%
27	Los Angeles Angels	−17.3	−1.9	175	82	93	47%	27	21	5.2%	5.1%	+0.0	551	117	67%	21%
28	Pittsburgh Pirates	−21.6	−4.5	163	71	92	44%	23	8	4.8%	4.7%	+0.1	510	97	60%	19%
29	Seattle Mariners	−23.5	−5.4	163	68	95	42%	23	12	4.6%	4.4%	+0.2	531	102	63%	19%
30	Colorado Rockies	−32.0	−6.7	178	75	103	42%	21	9	6.7%	4.7%	+2.0	438	104	58%	24%

GLOSSARY

RK: Position on the board as it is currently sorted
NET: Overturns above the number an average challenger wins on the same calls
RUNS: Run value gained by those challenges, above expected
CHAL: Challenges used
WON: Challenges that overturned the call
LOST: Challenges that confirmed the call
WON%: Share of challenges overturned
+K: Strikeouts gained by an overturn
−BB: Walks erased by an overturn
RATE: Challenges per challengeable take
xRATE: Challenge rate an average challenger would have run in the same spots
±RATE: Challenge rate above or below that expectation, in points
OPP: Takes worth challenging — the call went against the taking side
RSN: Those opportunities that were actually challenged
%RSN: Share of challenges that were worth making
%OPP: Share of worthwhile opportunities taken

RK
	LEAGUE	−0.4	+0.0	4765	2328	2437	49%	646	324	4.5%	4.5%	−0.0	15681	3168	66%	20%
1	Kansas City Royals	+26.4	+4.8	155	85	70	55%	25	11	4.2%	4.6%	−0.3	535	113	73%	21%
2	Chicago Cubs	+26.0	+6.1	162	83	79	51%	20	16	4.0%	4.3%	−0.3	567	117	72%	21%
3	Athletics	+23.7	+4.0	155	88	67	57%	23	8	4.8%	4.9%	−0.0	512	114	74%	22%
4	Detroit Tigers	+17.2	+2.7	176	93	83	53%	26	10	4.7%	4.8%	−0.1	575	124	70%	22%
5	New York Yankees	+15.6	+0.8	185	96	89	52%	23	10	5.2%	4.3%	+1.0	478	121	65%	25%
6	Arizona Diamondbacks	+15.4	+1.9	144	82	62	57%	19	7	3.5%	4.1%	−0.6	555	100	69%	18%
7	Cincinnati Reds	+13.4	+4.1	170	92	78	54%	28	19	4.4%	5.0%	−0.6	595	119	70%	20%
8	Houston Astros	+11.4	−0.3	185	93	92	50%	17	11	5.5%	4.1%	+1.4	465	117	63%	25%
9	Toronto Blue Jays	+9.3	+1.7	153	84	69	55%	21	8	4.5%	4.2%	+0.3	479	101	66%	21%
10	Los Angeles Dodgers	+8.4	+2.1	159	81	78	51%	25	12	4.3%	4.7%	−0.3	557	116	73%	21%
11	Philadelphia Phillies	+4.6	−0.4	186	89	97	48%	16	9	5.2%	4.2%	+1.0	508	125	67%	25%
12	Texas Rangers	+4.4	+1.6	139	70	69	50%	32	7	3.9%	4.7%	−0.8	535	97	70%	18%
13	New York Mets	+4.4	−0.3	190	96	94	51%	19	11	5.5%	4.5%	+0.9	517	119	63%	23%
14	Chicago White Sox	+1.0	−1.7	161	80	81	50%	16	7	5.1%	4.6%	+0.6	497	107	66%	22%
15	St. Louis Cardinals	−0.3	+0.2	134	60	74	45%	15	5	3.5%	4.2%	−0.7	524	87	65%	17%
16	San Francisco Giants	−4.5	−0.5	148	69	79	47%	22	9	4.0%	4.1%	−0.1	488	99	67%	20%
17	Milwaukee Brewers	−4.5	+0.9	125	58	67	46%	15	10	3.0%	4.3%	−1.2	619	87	70%	14%
18	Minnesota Twins	−4.6	−0.4	181	89	92	49%	20	22	5.6%	4.3%	+1.3	465	110	61%	24%
19	Boston Red Sox	−5.9	−1.4	175	85	90	49%	26	12	4.8%	4.6%	+0.2	543	124	71%	23%
20	Atlanta Braves	−7.2	+0.3	120	50	70	42%	21	9	3.9%	4.4%	−0.6	444	77	64%	17%
21	Washington Nationals	−7.7	+0.1	131	59	72	45%	22	8	3.7%	4.6%	−0.9	528	83	63%	16%
22	San Diego Padres	−7.8	−0.2	130	58	72	45%	14	4	3.9%	4.1%	−0.1	456	80	62%	18%
23	Baltimore Orioles	−9.3	−0.3	168	79	89	47%	28	18	4.4%	4.9%	−0.4	596	111	66%	19%
24	Miami Marlins	−9.8	−0.6	158	80	78	51%	26	15	4.4%	4.6%	−0.2	566	112	71%	20%
25	Cleveland Guardians	−11.0	−1.6	142	62	80	44%	16	11	3.8%	4.3%	−0.4	526	87	61%	17%
26	Tampa Bay Rays	−14.7	−5.0	154	71	83	46%	17	5	4.4%	4.5%	−0.1	521	101	66%	19%
27	Los Angeles Angels	−17.3	−1.9	175	82	93	47%	27	21	5.2%	5.1%	+0.0	551	117	67%	21%
28	Pittsburgh Pirates	−21.6	−4.5	163	71	92	44%	23	8	4.8%	4.7%	+0.1	510	97	60%	19%
29	Seattle Mariners	−23.5	−5.4	163	68	95	42%	23	12	4.6%	4.4%	+0.2	531	102	63%	19%
30	Colorado Rockies	−32.0	−6.7	178	75	103	42%	21	9	6.7%	4.7%	+2.0	438	104	58%	24%

GLOSSARY

RK: Position on the board as it is currently sorted
NET: Overturns above the number an average challenger wins on the same calls
RUNS: Run value gained by those challenges, above expected
CHAL: Challenges used
WON: Challenges that overturned the call
LOST: Challenges that confirmed the call
WON%: Share of challenges overturned
+K: Strikeouts gained by an overturn
−BB: Walks erased by an overturn
RATE: Challenges per challengeable take
xRATE: Challenge rate an average challenger would have run in the same spots
±RATE: Challenge rate above or below that expectation, in points
OPP: Takes worth challenging — the call went against the taking side
RSN: Those opportunities that were actually challenged
%RSN: Share of challenges that were worth making
%OPP: Share of worthwhile opportunities taken