Advanced Bullpen Data + Usage Tracking

Aroldis Chapman
Throws: L
Primary Role(s): Closer
Age: 37

Boston
Team Record: 83 - 69
Head Coach: Alex Cora
Pitching Coach: Andrew Bailey

Pitcher Snapshot
Pitcher Impact Rating: 
83.6
IP (last 7 gm): 
3.1
ERA (last 7 gm): 
5.41
Team BP Power Rank: 
#9

Cumulative Stats

Season	G	ERA	IP	PA	P/pa	SO/pa	BB/pa	HR/pa	SB/pa	G/AO	AVG	OBP	xWOBA	OPS
2025	64	1.23	58.1	217	3.95	37.8%	6.5%	1.4%	-	0.57	0.134	0.189	0.233	0.387
2025 SpringTr	8	2.45	7.1	30	4.20	46.7%	16.7%	0.0%	-	1.67	0.120	0.267	-	0.427
2025: Home	32	0.91	29.2	109	3.78	35.8%	7.3%	1.8%	-	0.63	0.130	0.193	-	0.403
2025: Away	32	1.57	28.2	108	4.11	39.8%	5.6%	0.9%	-	0.5	0.137	0.185	-	0.371
2025: Vs L	40	-	14.1	53	3.92	41.5%	1.9%	1.9%	-	0.47	0.154	0.170	-	0.420
2025: Vs R	64	-	44.0	164	3.98	36.6%	7.9%	1.2%	-	0.6	0.127	0.195	-	0.375

2025 Pitch Arsenal

Game Logs

Game Date	Opponent	IP	PA	R	H	2B	SO	NP-S	AVG
2025-09-17 (BOS)	vs Athletics	1.0	5	0	2	0	0	19-11	0.13
2025-09-14 (BOS)	vs Yankees	1.0 9	3	0	0	0	1	11-10	0.13
2025-09-13 (BOS)	vs Yankees	1.0 9	5	1	2	1	0	20-14	0.13
2025-09-10 (BOS)	@ Athletics	0.1 9	3	1	2	1	0	13-9	0.12
2025-09-07 (BOS)	@ D-backs	1.0 9	4	0	0	0	4	23-16	0.11
2025-09-01 (BOS)	vs Guardians	1.0 9	3	0	0	0	1	5-5	0.12
2025-08-31 (BOS)	vs Pirates	1.0 9	3	0	0	0	2	16-10	0.12

Advanced Stats

Advanced Stats will be released after the All-Star break

Last 7 Days

Player	IP	NP-S	ERA	Sep-17	Sep-16	Sep-14	Sep-13	Sep-12
Aroldis Chapman	3.0	50-35	5.41	1.0 19-11		1.0 9 11-10	1.0 9 20-14
Justin Wilson	2.0	42-27	6.00	0.1 16-9	0.1 6 6-4			1.1 6 20-14
Steven Matz	2.2	43-28	2.08	0.2 11-8	1.0 8 16-12	1.0 7 16-8
Dustin May	0	0-0	7.20
Chris Murphy	3.0	40-24	0.00	0.1 4-3			1.2 6 24-13	1.0 9 12-8
Greg Weissert	0.1	22-12	3.86		0.1 6 22-12
Garrett Whitlock	3.2	55-41	0.00	1.1 15-12		1.0 8 18-12	1.1 7 22-17
Kutter Crawford	0	0-0	9.00
Garrett Crochet	0	0-0	0.00
Zack Kelly	2.2	45-32	0.00	0.2 8-7	1.0 9 16-13			1.0 8 21-12
Justin Slaten	2.1	20-18	4.92	1.1 15-13	1.0 7 5-5
Hunter Dobbins	0	0-0	5.59
Kyle Harrison	0	0-0	6.77