most runs allowed by a relief pitcher in one appearance

Tyler Kinley has allowed the most runs by a relief pitcher this season, with 28 runs.

Interpreted as:

most runs allowed by a relief pitcher in one appearance this regular season

	NAME	R	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Tyler Kinley T. Kinley	28	2025	COL	34	0	3	.000	0	6.89	32	0	0	2	32.2	31	25	2	24	1	10	4	155	5	8.82	6.61	1.33	0.55	20.6	15.5	1.68	.302	7.71	8.54
2	Jose A. Ferrer J. A. Ferrer	27	2025	WSH	38	2	3	.400	0	5.63	33	0	0	0	40.0	43	25	3	10	5	2	0	172	2	7.43	2.25	3.30	0.68	19.2	5.8	1.33	.331	6.08	9.68
3	Mitch Spence M. Spence	26	2025	ATH	22	1	1	.500	0	4.38	37	0	0	1	39.0	38	19	4	14	3	3	1	171	1	8.54	3.23	2.64	0.92	21.6	8.2	1.33	.301	6.00	8.77
4	Noah Murdock N. Murdock	25	2025	ATH	14	1	1	.500	0	13.24	21	0	0	0	17.0	26	25	0	20	2	2	3	98	0	11.12	10.59	1.05	0.00	21.4	20.4	2.71	.473	13.24	13.76
5	Jorge Alcala J. Alcala	25	2025	TOT	24	0	2	.000	0	8.20	29	0	0	0	26.1	29	24	5	15	1	8	0	120	3	9.91	5.13	1.93	1.71	24.2	12.5	1.67	.343	8.54	9.91
6	Jackson Rutledge J. Rutledge	24	2025	WSH	26	1	1	.500	0	5.94	29	0	0	0	33.1	38	22	7	14	5	8	0	153	5	7.83	3.78	2.07	1.89	19.0	9.2	1.56	.316	6.48	10.26
7	Tyler Ferguson T. Ferguson	24	2025	ATH	34	2	2	.500	0	6.00	31	0	0	1	33.0	29	22	3	18	3	6	1	144	1	8.45	4.91	1.72	0.82	21.5	12.5	1.42	.292	6.55	7.91
8	Brenan Hanifee B. Hanifee	24	2025	DET	34	3	2	.600	0	3.69	27	0	0	0	39.0	45	16	2	10	1	6	1	171	0	6.23	2.31	2.70	0.46	15.8	5.8	1.41	.328	5.54	10.38
9	Eduardo Salazar E. Salazar	24	2025	WSH	25	0	1	.000	0	8.51	19	0	0	0	24.1	42	23	5	14	1	7	0	129	3	7.03	5.18	1.36	1.85	14.7	10.9	2.30	.411	8.88	15.53
10	Angel Chivilli A. Chivilli	23	2025	COL	20	1	2	.333	0	6.14	21	0	0	0	29.1	34	20	6	13	1	1	1	134	4	6.44	3.99	1.62	1.84	15.7	9.7	1.60	.301	7.06	10.43
11	Tyler Alexander T. Alexander	23	2025	TOT	21	3	5	.375	0	5.29	25	0	0	1	34.0	41	20	2	8	0	8	2	144	0	6.62	2.12	3.13	0.53	17.4	5.6	1.44	.358	6.09	10.85
12	Joe Ross J. Ross	22	2025	PHI	25	2	1	.667	0	5.40	25	0	0	0	35.0	37	21	7	12	2	4	1	156	0	6.43	3.09	2.08	1.80	16.0	7.7	1.40	.273	5.66	9.51
13	Cionel Pérez C. Pérez	22	2025	BAL	19	0	0		0	8.31	21	0	0	0	21.2	28	20	3	18	2	6	1	110	1	8.72	7.48	1.17	1.25	19.1	16.4	2.12	.379	9.14	11.63
14	Graham Ashcraft G. Ashcraft	21	2025	CIN	29	5	4	.556	0	4.19	38	0	0	0	34.1	38	16	2	14	0	4	0	151	2	9.96	3.67	2.71	0.52	25.2	9.3	1.51	.371	5.50	9.96
15	Jordan Romano J. Romano	21	2025	PHI	31	0	3	.000	0	6.51	35	0	0	8	27.2	28	20	4	13	2	13	1	121	0	11.39	4.23	2.69	1.30	28.9	10.7	1.48	.358	6.83	9.11
16	Cole Sands C. Sands	21	2025	MIN	34	3	3	.500	0	4.64	24	0	0	2	33.0	33	17	3	9	1	9	0	139	2	6.55	2.45	2.67	0.82	17.3	6.5	1.27	.294	5.73	9.00
17	Chris Stratton C. Stratton	20	2025	TOT	15	0	0		0	7.71	22	0	0	0	21.0	32	18	4	10	0	9	0	104	0	9.43	4.29	2.20	1.71	21.2	9.6	2.00	.412	8.57	13.71
18	Jeff Hoffman J. Hoffman	20	2025	TOR	34	6	2	.750	0	5.29	44	0	0	17	32.1	26	19	8	10	1	29	1	133	1	12.25	2.78	4.40	2.23	33.1	7.5	1.11	.257	5.57	7.24
19	Bryse Wilson B. Wilson	20	2025	CWS	14	0	1	.000	0	7.61	13	0	0	0	23.2	35	20	7	9	0	7	0	109	0	4.94	3.42	1.44	2.66	11.9	8.3	1.86	.350	7.61	13.31
20	Joey Wentz J. Wentz	20	2025	TOT	22	2	1	.667	0	5.52	23	0	0	0	29.1	32	18	3	16	1	7	2	137	1	7.06	4.91	1.44	0.92	16.8	11.7	1.64	.309	6.14	9.82
21	Collin Snider C. Snider	20	2025	SEA	24	2	1	.667	0	5.47	24	0	0	0	26.1	32	16	3	6	2	4	1	119	1	8.20	2.05	4.00	1.03	20.2	5.0	1.44	.345	6.84	10.94
22	Beau Brieske B. Brieske	20	2025	DET	21	1	3	.250	0	6.97	14	0	0	1	20.2	24	16	5	11	0	9	1	98	2	6.10	4.79	1.27	2.18	14.3	11.2	1.69	.279	8.71	10.45
23	Kevin Ginkel K. Ginkel	19	2025	AZ	17	1	3	.250	0	11.57	18	0	0	1	14.0	18	18	2	10	2	3	0	73	1	11.57	6.43	1.80	1.29	24.7	13.7	2.00	.390	12.21	11.57
24	Matt Sauer M. Sauer	19	2025	LAD	8	2	1	.667	0	6.46	20	0	0	1	23.2	30	17	4	6	2	4	0	104	1	7.61	2.28	3.33	1.52	19.2	5.8	1.52	.361	7.23	11.41
25	Raisel Iglesias R. Iglesias	19	2025	ATL	29	4	5	.444	0	5.93	29	0	0	8	27.1	32	18	7	6	1	23	1	118	0	9.55	1.98	4.83	2.30	24.6	5.1	1.39	.333	6.26	10.54