most er by a pitcher in a game last 20 years

Between May 11, 2005 and May 11, 2025, Vin Mazzaro has given up the most earned runs in a game, with 14 earned runs versus the Cleveland Indians on May 16, 2011.

Interpreted as:

most er by a pitcher in a regular-season game last 20 years

	NAME	ER	DATE	TM		OPP	DEC	GS	ERA	SO	CG	SHO	SV	IP	H	R	HR	BB	HBP	GF	IBB	TBF	WP
1	Vin Mazzaro V. Mazzaro	14	5/16/2011	KCR	vs	CLE		0	54.00	2	0	0	0	2.1	11	14	1	3	0	0	0	21	1
2	Ben Lively B. Lively	13	8/1/2023	CIN	@	CHC	L	1	29.25	2	0	0	0	4.0	13	13	4	2	1	0	0	27	0
3	Scott Kazmir S. Kazmir	13	7/10/2010	LAA	@	OAK	L	1	23.40	2	0	0	0	5.0	11	13	3	3	1	0	1	30	2
4	Jason Marquis J. Marquis	13	6/21/2006	STL	@	CWS	L	1	23.40	3	0	0	0	5.0	14	13	4	1	0	0	0	30	0
5	Bradley Blalock B. Blalock	12	5/10/2025	COL	vs	SDP	L	1	29.45	1	0	0	0	3.2	13	12	3	2	0	0	0	26	1
6	Jordan Yamamoto J. Yamamoto	12	9/9/2020	MIA	@	ATL		0	40.50	3	0	0	0	2.2	11	13	4	2	0	0	0	22	0
7	Masahiro Tanaka M. Tanaka	12	7/25/2019	NYY	@	BOS	L	1	32.40	4	0	0	0	3.1	12	12	2	3	0	0	0	25	0
8	A.J. Burnett	12	5/2/2012	PIT	@	STL	L	1	40.50	2	0	0	0	2.2	12	12	2	1	1	0	0	22	0
9	Randy Wolf R. Wolf	12	7/21/2010	MIL	@	PIT	L	1	19.06	4	0	0	0	5.2	13	12	2	2	0	0	0	31	0
10	Jason Marquis J. Marquis	12	7/18/2006	STL	vs	ATL	L	1	21.60	4	0	0	0	5.0	14	12	3	2	1	0	0	31	0
11	Tanner Houck T. Houck	11	4/14/2025	BOS	@	TBR	L	1	42.43	1	0	0	0	2.1	10	12	2	2	0	0	0	20	1
12	Braxton Garrett B. Garrett	11	5/3/2023	MIA	vs	ATL	L	1	22.85	3	0	0	0	4.1	14	11	4	2	0	0	0	28	0
13	Luis Cessa L. Cessa	11	4/16/2023	CIN	vs	PHI	L	1	33.00	0	0	0	0	3.0	14	11	1	3	1	0	0	27	1
14	Kohei Arihara K. Arihara	11	9/10/2022	TEX	vs	TOR	L	1	33.00	1	0	0	0	3.0	12	11	2	5	0	0	0	26	0
15	Ryan Weber R. Weber	11	6/13/2021	BOS	vs	TOR		0	17.47	7	0	0	0	5.2	13	11	4	2	0	0	0	30	0
16	Alec Bettinger A. Bettinger	11	5/2/2021	MIL	vs	LAD	L	1	24.75	0	0	0	0	4.0	11	11	2	2	1	0	0	26	1
17	Germán Márquez G. Márquez	11	7/15/2019	COL	vs	SFG	L	1	37.13	3	0	0	0	2.2	11	11	2	0	0	0	0	19	0
18	Austin Bibens-Dirkx A. Bibens-Dirkx	11	7/21/2018	TEX	vs	CLE		0	24.75	0	0	0	0	4.0	13	11	3	1	1	0	0	27	0
19	Jeff Locke J. Locke	11	7/3/2017	MIA	@	STL	L	1	37.13	2	0	0	0	2.2	11	11	0	4	0	0	1	23	0
20	Edinson Volquez E. Volquez	11	6/24/2016	KCR	vs	HOU	L	1	99.00	0	0	0	0	1.0	8	12	1	3	0	0	0	15	0
21	Jeff Locke J. Locke	11	6/9/2016	PIT	@	COL	L	1	21.21	2	0	0	0	4.2	11	11	1	3	0	0	0	28	1
22	Derek Holland D. Holland	11	5/5/2016	TEX	@	TOR	L	1	37.13	0	0	0	0	2.2	11	11	1	3	0	0	1	22	1
23	Chris Rusin C. Rusin	11	8/22/2015	COL	vs	NYM	L	1	49.50	3	0	0	0	2.0	12	11	1	2	0	0	0	20	0
24	David Buchanan D. Buchanan	11	8/11/2015	PHI	@	ARI	L	1	59.40	1	0	0	0	1.2	11	11	2	2	0	0	0	18	0
25	Jeremy Guthrie J. Guthrie	11	5/25/2015	KCR	@	NYY	L	1	99.00	1	0	0	0	1.0	9	11	4	3	1	0	0	16	1