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Aaron Bummer

Atlanta Braves · RP Throws: L Bats: L Height: 6'4 Weight: 215 Born: Sep 21, 1993 (31)

Percentile Ranks
vs LHH
vs RHH K%
79.5
42.2 xWOBA
0.282 · 96%
0.357 · 16%
xSLG
98.8
43.1

Year	Team	G	GS	W-L	IP	ERA	WHIP	K%	CSW%	BB%	xAVG	xSLG	xwOBA	xISO	BAR%	SS%	HH%	GB%	LD%	FB%	Z%	Z Sw%	OZ%	OZ Sw%	Apr	May	Jun	Jul	Aug	Sep
2025		41	2	3-2	53.0	3.91	1.30	22.0%	0.0%	7.8%	.274	.381	.323	.107	3.3%	34.0%	40%	56%	28%	16%	48%	12%	52%	45%	3.9	3.7	3.0	2.1	6.8	0.0
2024		56	0	4-3	55.1	3.58	1.43	28.3%	0.0%	7.4%	.232	.283	.261	.052	1.3%	29.0%	33%	61%	26%	9%	48%	19%	52%	40%	0.0	0.0	0.0	0.0	0.0	0.0
2023		61	0	5-5	58.1	6.79	1.53	29.2%	0.0%	13.5%	.218	.303	.292	.085	2.7%	27.0%	45%	60%	22%	16%	48%	19%	52%	56%	0.0	0.0	0.0	0.0	0.0	0.0
2022		32	0	2-1	26.2	2.36	1.53	25.6%	0.0%	8.5%	.257	.355	.308	.099	6.7%	30.7%	45%	64%	27%	9%	48%	18%	52%	49%	0.0	0.0	0.0	0.0	0.0	0.0
2021	White Sox	62	0	5-5	56.1	3.51	1.21	31.4%	0.0%	10.9%	.180	.235	.249	.055	2.2%	14.2%	42%	77%	11%	10%	48%	17%	52%	64%	0.0	0.0	0.0	0.0	0.0	0.0
2020	White Sox	9	0	1-0	9.1	0.96	1.10	36.8%	0.0%	13.2%	.173	.286	.262	.113	5.3%	21.1%	47%	68%	16%	16%	44%	21%	56%	54%	0.0	0.0	0.0	0.0	0.0	0.0
2019	White Sox	58	0	0-0	67.2	2.13	0.98	23.0%	0.0%	8.8%	.189	.265	.246	.076	2.3%	18.3%	38%	71%	15%	10%	51%	16%	49%	46%	0.0	0.0	0.0	0.0	0.0	0.0
2018	White Sox	37	0	0-1	31.2	4.26	1.60	24.3%	0.0%	6.9%	.262	.372	.308	.110	7.1%	30.6%	43%	62%	25%	10%	51%	16%	49%	45%	0.0	0.0	0.0	0.0	0.0	0.0

2025

Box Score														Pitch Usage/Velo												DFS
#	Date		Opp	IP	BF	PC	H	HR	ER	BB	SO	SwStr	CSW%	SI		CU		ST		FF		FC		CH		Rating	DK $	DK	FD $	FD
1	2025	Aug, 23	NYM	1.1	4	14	0	0	0	0	0	0	14.3														n/a	3.00	n/a	4
2	2025	Aug, 17	@CLE	2.0	8	27	1	0	0	0	1	1	25.9														n/a	9.90	n/a	15
3	2025	Aug, 13	@NYM	2.1	10	51	2	0	0	1	3	6	31.4	43.1%	90.3	21.6%	81.0	25.5%	81.2	9.8%	90.7						n/a	13.45	n/a	22
4	2025	Aug, 09	MIA	1.2	6	30	2	0	1	0	1	2	26.7	26.7%	90.0	10.0%	81.7	36.7%	81.2	26.7%	91.3						n/a	2.55	n/a	5
5	2025	Aug, 06	MIL	2.1	10	45	2	0	0	0	1	3	26.7	51.1%	91.3	15.6%	81.8	20.0%	82.5	13.3%	92.0						n/a	6.05	n/a	10
6	2025	Aug, 04	MIL	1.2	6	20	0	0	0	0	1	1	45.0	25.0%	92.0	5.0%	80.5	45.0%	81.8	25.0%	91.9						n/a	5.75	n/a	8
7	2025	Jul, 29	@KC	0.2	5	23	2	0	2	1	1	1	17.4														n/a	-2.30	n/a	-1
8	2025	Jul, 25	@TEX	0.2	4	14	1	0	0	1	0	0	28.6	21.4%	90.6			50.0%	79.3	28.6%	90.2						n/a	0.30	n/a	2
9	2025	Jul, 23	SF	0.2	3	11	1	0	0	0	0	2	27.3	9.1%	91.2			72.7%	81.3	18.2%	94.0						n/a	0.90	n/a	2
10	2025	Jul, 21	SF	1.0	5	14	1	0	0	0	0	1	28.6	50.0%	92.9	42.9%	82.3			7.1%	93.1						n/a	1.65	n/a	3
11	2025	Jul, 18	NYY	0.2	5	17	3	0	3	0	1	1	17.6	17.6%	93.3	52.9%	82.3	11.8%	81.0	17.6%	93.1						n/a	-4.30	n/a	-4
12	2025	Jul, 12	@STL	2.0	10	33	4	1	3	0	1	3	27.3	42.4%	91.3	42.4%	81.4	3.0%	82.2	9.1%	91.8						n/a	-1.90	n/a	0
13	2025	Jul, 10	@ATH	0.1	3	6	1	0	0	1	1	1	50.0	16.7%	90.2	16.7%	80.1	66.7%	79.5								n/a	1.55	n/a	4
14	2025	Jul, 05	BAL	2.1	11	52	2	2	3	1	5	10	38.5	25.0%	91.6	53.8%	82.3	13.5%	81.4	7.7%	92.8					68.00	4,000	7.45	5,500	13
15	2025	Jul, 02	LAA	2.1	7	24	0	0	0	0	3	1	45.8	25.0%	90.5	66.7%	81.1	4.2%	82.2	4.2%	91.2						n/a	15.25	n/a	22
16	2025	Jun, 25	@NYM	2.2	11	35	3	0	0	0	2	5	28.6														n/a	8.20	n/a	14
17	2025	Jun, 20	@MIA	1.1	7	28	1	0	2	3	0	1	10.7														n/a	-3.40	n/a	-2
18	2025	Jun, 15	COL	0.2	3	16	1	0	0	0	0	1	18.8	43.8%	91.4	43.8%	81.3	6.3%	81.2	6.3%	91.3						n/a	0.90	n/a	2
19	2025	Jun, 13	COL	0.2	3	8	2	0	0	0	0	0	25.0	37.5%	90.9	37.5%	80.2	25.0%	81.3								n/a	0.30	n/a	2
20	2025	Jun, 10	@MIL	0.2	5	19	1	0	1	1	0	0	10.5	36.8%	90.6	5.3%	81.5	47.4%	80.8	10.5%	91.7						n/a	-1.70	n/a	-1

2024

Box Score														Pitch Usage/Velo												DFS
#	Date		Opp	IP	BF	PC	H	HR	ER	BB	SO	SwStr	CSW%	SI		ST		CU		FF		FC		CH		Rating	DK $	DK	FD $	FD

2023

Box Score														Pitch Usage/Velo												DFS
#	Date		Opp	IP	BF	PC	H	HR	ER	BB	SO	SwStr	CSW%	SI		ST		CU		FF		FC		CH		Rating	DK $	DK	FD $	FD

2022

Box Score														Pitch Usage/Velo												DFS
#	Date		Opp	IP	BF	PC	H	HR	ER	BB	SO	SwStr	CSW%	SI		CU		ST		FF		FC		CH		Rating	DK $	DK	FD $	FD

2021

Box Score														Pitch Usage/Velo												DFS
#	Date		Opp	IP	BF	PC	H	HR	ER	BB	SO	SwStr	CSW%	SI		CU		ST		FF		FC		CH		Rating	DK $	DK	FD $	FD

2020

Box Score														Pitch Usage/Velo												DFS
#	Date		Opp	IP	BF	PC	H	HR	ER	BB	SO	SwStr	CSW%	SI		CU		ST		FF		FC		CH		Rating	DK $	DK	FD $	FD

2019

Box Score														Pitch Usage/Velo												DFS
#	Date		Opp	IP	BF	PC	H	HR	ER	BB	SO	SwStr	CSW%	SI		CU		ST		FF		FC		CH		Rating	DK $	DK	FD $	FD

2018

Box Score														Pitch Usage/Velo												DFS
#	Date		Opp	IP	BF	PC	H	HR	ER	BB	SO	SwStr	CSW%	SI		CU		ST		FF		FC		CH		Rating	DK $	DK	FD $	FD

2025 Splits				vs LHB									vs RHB
Pitch	Type	MPH	SPIN	Whiff%	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR
4-Seamer	Fastball	MPH		0%	10%	.483	.459	50.0	0.0	.569	.000	0	67%	.381	.456	16.7	11.1	.619	.313	1
Sweeper	Breaking	MPH		28%	89%	.182	.216	30.0	10.0	.241	.125	0	33%	.220	.304	36.4	9.1	.277	.111	0
Changeup	Offspeed	MPH		0%	1%	.000	.000	0.0	0.0	.000	.000	0

2024 Splits				vs LHB									vs RHB
Pitch	Type	MPH	SPIN	Whiff%	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR
4-Seamer	Fastball	MPH		0%	13%	.171	.302	40.0	20.0	.331	.000	0	20%	.188	.245	32.0	8.0	.236	.045	0
Cutter	Fastball	87.4 MPH	2369	24%	14%	.225	.255	33.3	0.0	.371	.500	1	6%	.326	.333	14.3	0.0	.441	.143	0
Sweeper	Breaking	MPH		44%	74%	.219	.217	45.2	2.4	.249	.000	0	71%	.188	.200	50.9	3.5	.224	.075	0
Changeup	Offspeed	84.2 MPH	1762	13%	3%	.228	.211	0.0	0.0	.283	.000	0

2023 Splits				vs LHB									vs RHB
Pitch	Type	MPH	SPIN	Whiff%	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR
4-Seamer	Fastball	93.1 MPH	2071	32%	4%	.134	.267	25.0	25.0	.136	.000	0	8%	.116	.258	50.0	25.0	.141	.083	0
Cutter	Fastball	87.2 MPH	2344	52%	8%	.000	.568	0.0	0.0	.531	.490	0	12%	.282	.392	25.0	12.5	.562	.429	1
Sinker	Fastball	94.3 MPH	1967	15%	43%	.314	.416	11.9	21.4	.382	.167	0	45%	.289	.347	8.3	12.5	.406	.113	1
Sweeper	Breaking	MPH		45%	45%	.118	.125	45.5	2.3	.140	.047	0	34%	.175	.261	46.6	11.0	.276	.111	2
Changeup	Offspeed	88.1 MPH	1548	67%	1%	.333	.294	66.7	0.0	.333	1.000	0

Splits	vs LHB								vs RHB
Year	PA	xBAVG	xWOBA	xSLG	ISO	K%	BB%	HR	PA	xBAVG	xWOBA	xSLG	ISO	K%	BB%	HR
2025	103	.247	.282	.325	.098	25.2%	8.7%	1	125	.296	.357	.428	.147	20.0%	4.0%	2
2024	87	.223	.261	.289	.127	31.0%	6.9%	2	155	.237	.261	.280	.064	27.1%	6.5%	0
2023	92	.205	.272	.244	.090	28.3%	12.0%	0	172	.226	.304	.335	.122	30.2%	12.8%	4
2022	47	.199	.283	.300	.026	25.5%	14.9%	0	70	.292	.325	.389	.123	25.7%	4.3%	2

	Home								Road
Season	PA	xAVG	xWOBA	K%	BB%	xSLG	ISO	HR	PA	xAVG	xWOBA	K%	BB%	xSLG	ISO	HR
2025	117	.250	.298	26.5%	2.6%	.363	.102	2	111	.301	.349	18.0%	9.9%	.402	.151	1
2024	132	.214	.227	33.3%	3.8%	.251	.073	1	110	.254	.302	22.7%	10.0%	.325	.104	1
2023	138	.229	.313	33.3%	14.5%	.320	.123	2	126	.208	.270	25.4%	10.3%	.286	.099	2
2022	47	.249	.316	23.4%	10.6%	.363	.075	0	70	.263	.304	27.1%	7.1%	.351	.094	2

Split	Games	Wind 0-9 mph+	Wind 10+ mph	Humid 0-25	Humid 25-50	Humid 50-75	Humid 75-100	Temp 0-40	Temp 40-60	Temp 61-79	Temp 80+
Road	2.75	2.10	3.51	0.00	2.23	2.16	5.60	0.00	3.60	2.82	2.20
Home	3.97	4.00	5.10	0.00	3.82	4.31	4.71	0.00	5.10	3.63	4.79