2026Regular Season

Jonah Heim

Bats SThrows RHt/Wt 6'4", 220 lbAge 31Born Jun 27, 1995 in Buffalo, NYDebut 2020

Career Splits

		Challenge Stats									Batter Decision Quality									Catcher Decision Quality									Call Context
Year	TM	Won	Att	Win%	CDQ	ROE	Net RE	Net WPA	xChall	COE	bCDQ	bCDQ/P	CS	CC	BC	MO	ROE	WOE	Win%	cCDQ	cCDQ/P	CB	CC	BC	MO	ROE	WOE	Win%	Call LI	cBE%	acBE%	xChall%
2026	ATH	66	104	63.5%	21.87	+5.68	+11.737	+1.017	78.06	+25.94	1.18	0.0055	214	2	3	12	+0.01	+0.015	40.0%	20.69	0.0058	3568	64	35	91	+5.67	+0.472	64.6%	1.20	53.7%	19.9%	24.2%
Career		66	104	63.5%	21.87	+5.68	+11.737	+1.017	78.06	+25.94	1.18	0.0055	214	2	3	12	+0.01	+0.015	40.0%	20.69	0.0058	3568	64	35	91	+5.67	+0.472	64.6%	1.20	53.7%	19.9%	24.2%

2026 Challenges

Result

Role

Window

104 of 104 challenges

	Date▼	Opp	Role	Inn	Count	Outs	Ch. Rem.	Dist (in.)	LI	Net RE	Net WPA
✕	Sep 23	LAA	catcher	▲ 7	0-0	2	1	-0.23	0.53	-0.054	-0.2%
✓	Sep 22	LAA	catcher	▲ 2	1-2	1	2	0.25	1.59	+0.269	+2.4%
✕	Sep 20	CLE	catcher	▼ 6	1-1	0	2	-1.05	0.56	-0.013	-0.2%
✓	Sep 18	CLE	catcher	▼ 6	3-1	0	2	0.85	1.74	+0.320	+2.6%
✓	Sep 12	SEA	catcher	▲ 3	0-2	0	2	0.69	0.30	+0.168	+0.5%
✓	Sep 12	SEA	catcher	▲ 1	0-1	1	2	2.02	0.60	+0.132	+0.9%
✓	Sep 11	SEA	catcher	▲ 2	3-1	0	2	1.78	3.22	+0.479	+4.9%
✓	Sep 8	TOR	catcher	▲ 2	0-0	0	2	0.04	0.41	+0.069	+0.6%
✕	Sep 7	TOR	catcher	▲ 2	2-0	0	2	-0.25	1.34	-0.049	-0.5%
✓	Sep 5	SEA	catcher	▼ 4	0-2	2	2	0.40	0.81	+0.161	+1.2%
✓	Sep 5	SEA	catcher	▼ 4	0-1	2	2	1.60	0.35	+0.069	+0.5%
✓	Sep 5	SEA	catcher	▼ 3	0-2	0	2	0.30	1.26	+0.168	+1.9%
✓	Sep 5	SEA	catcher	▼ 2	2-2	0	2	0.91	2.14	+0.301	+3.3%
✓	Sep 4	SEA	catcher	▼ 9	0-0	1	1	0.27	2.17	+0.090	+3.3%
✓	Sep 4	SEA	catcher	▼ 8	0-1	1	1	0.43	1.29	+0.099	+2.0%
✓	Sep 1	TEX	catcher	▼ 8	1-2	0	1	0.08	0.03	+0.202	+0.0%
✕	Sep 1	TEX	catcher	▼ 3	3-2	2	2	-0.01	2.71	-0.033	-0.4%
✕	Aug 31	TEX	catcher	▼ 5	3-2	0	1	-0.25	1.26	-0.082	-0.3%
✕	Aug 31	TEX	catcher	▼ 1	2-0	1	2	-1.70	0.81	-0.052	-0.5%
✓	Aug 30	BAL	batter	▼ 9	0-0	0	2	-2.57	0.46	+0.069	+0.7%
✕	Aug 29	BAL	catcher	▲ 9	0-2	0	2	-0.55	0.64	-0.001	-0.0%
✓	Aug 28	BAL	catcher	▲ 8	2-0	2	2	0.22	0.46	+0.067	+0.7%
✓	Aug 28	BAL	catcher	▲ 5	0-2	1	2	0.49	0.59	+0.114	+0.9%
✓	Aug 28	BAL	catcher	▲ 5	1-1	0	2	0.92	0.47	+0.098	+0.7%
✕	Aug 26	MIN	catcher	▲ 9	0-1	2	2	-0.56	0.84	-0.001	-0.0%

1–25 of 104

Strike Zone (Catcher's View)

Batter

5 pitches

5.1% larger than league avg by area

Defensive

99 pitches

Zone varies by batter

By Count

cell = win% · won/att · ΔRE

strikes →balls ↓

0-060%

15/25+0.81

0-190%

9/10+0.96

0-289%

8/9+1.69

1-075%

3/4+0.36

1-171%

5/7+0.60

1-254%

7/13+2.02

2-040%

2/5+0.15

2-133%

2/6+0.16

2-278%

7/9+2.34

3-0100%

1/1+0.24

3-157%

4/7+1.04

3-238%

3/8+1.36

Low (<1)

63% (37/59)win

15% (37/244)chall

Med (1–2)

64% (18/28)win

35% (18/51)chall

High (2+)

65% (11/17)win

50% (11/22)chall

Vertical tick = league avg win%. Bar = Jonah Heim's win%. Challenge% = correct challenges / winnable opportunities.