most innings pitched in a season without allowing a run

Tyler Olson has pitched the most innings with exactly 0 runs allowed in a season, with 20 innings in his rookie season in 2017.

Interpreted as:

most innings pitched in a season without allowing a run by a player

	NAME	IP	R	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	H	ER	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Tyler Olson T. Olson	20.0	0	2017	CLE	30	1	0	1.000	0	0.00	18	0	0	1	13	0	0	6	1	4	0	77	0	8.10	2.70	3.00	0.00	23.4	7.8	0.95	.250	0.00	0	2.40	55	5.85	4.4
2	Karl Spooner K. Spooner	18.0	0	1954	BKN	2	2	0	1.000	2	0.00	27	2	2	0	7	0	0	6	0	0		68	0	13.50	3.00	4.50	0.00	39.7	8.8	0.72	.200	0.00	0	0.40	10	3.50	7.3
3	Brad Wieck B. Wieck	17.0	0	2021	CHC	15	0	0		0	0.00	28	0	0	0	10	0	0	10	0	5	0	71	0	14.82	5.29	2.80	0.00	39.4	14.1	1.18	.303	0.00	0	1.63	39	5.29	4.9
4	Danny Coulombe D. Coulombe	16.2	0	2025	MIN	19	1	0	1.000	0	0.00	19	0	0	2	8	0	0	2	0	6	0	60	0	10.26	1.08	9.50	0.00	31.7	3.3	0.60	.205	0.00	0	1.15	28	4.32	5.4
5	Bob McClure B. McClure	15.1	0	1975	KCR	12	1	0	1.000	0	0.00	15	0	0	1	4	0	0	14	0	4	2	66	0	8.80	8.22	1.07	0.00	22.7	21.2	1.17	.108	0.00	0	3.36	90	2.35	0.6
6	Vicente Palacios V. Palacios	15.0	0	1990	PIT	7	0	0		0	0.00	8	0	0	3	4	0	0	2	0	4	0	50	2	4.80	1.20	4.00	0.00	16.0	4.0	0.40	.100	0.00	0	2.13	57	2.40	2.7
7	Dave Ford D. Ford	15.0	0	1978	BAL	2	1	0	1.000	1	0.00	5	0	0	0	10	0	0	2	0	1	0	53	0	3.00	1.20	2.50	0.00	9.4	3.8	0.80	.217	0.00	0	2.31	62	6.00	2.4
8	Evan Scribner E. Scribner	14.0	0	2016	SEA	12	0	0		0	0.00	15	0	0	0	5	0	0	2	1	0	1	49	0	9.64	1.29	7.50	0.00	30.6	4.1	0.50	.161	0.00	0	1.64	39	3.21	4
9	Drew Pomeranz D. Pomeranz	13.2	0	2025	CHC	15	2	0	1.000	1	0.00	15	0	0	1	4	0	0	3	3	3	0	50	0	9.88	1.98	5.00	0.00	30.0	6.0	0.51	.138	0.00	0	2.20	57	2.63	2.6
10	Ken Brett K. Brett	13.1	0	1980	KCR	8	0	0		0	0.00	4	0	0	1	8	0	0	5	1	3	0	54	0	2.70	3.38	0.80	0.00	7.4	9.3	0.98	.182	0.00	0	3.49	89	5.40	0.7
11	Erik Sabrowski E. Sabrowski	12.2	0	2024	CLE	8	0	0		0	0.00	19	0	0	1	6	0	0	4	0	4	0	47	1	13.50	2.84	4.75	0.00	40.4	8.5	0.79	.250	0.00	0	1.11	27	4.26	4.2
12	Shawn Kelley S. Kelley	12.2	0	2011	SEA	10	0	0		0	0.00	10	0	0	0	7	0	0	3	0	2	1	47	0	7.11	2.13	3.33	0.00	21.3	6.4	0.79	.206	0.00	0	2.15	55	4.97	2.6
13	Pat Perry P. Perry	12.1	0	1985	STL	6	1	0	1.000	0	0.00	6	0	0	0	3	0	0	3	0	1	1	42	1	4.38	2.19	2.00	0.00	14.3	7.1	0.49	.091	0.00	0	2.44	69	2.19	1.6
14	Shane Bieber S. Bieber	12.0	0	2024	CLE	2	2	0	1.000	2	0.00	20	0	0	0	10	0	0	1	0	0	0	45	0	15.00	0.75	20.00	0.00	44.4	2.2	0.92	.417	0.00	0	0.08	2	7.50	5.3
15	Hal White H. White	12.0	0	1949	DET	9	1	0	1.000	0	0.00	4	0	0	2	5	0	0	4	0	8		44	0	3.00	3.00	1.00	0.00	9.1	9.1	0.75	.139	0.00	0	2.84	67	3.75	1.9
16	Todd Frohwirth T. Frohwirth	11.0	0	1987	PHI	10	1	0	1.000	0	0.00	9	0	0	0	12	0	0	2	0	2	0	43	0	7.36	1.64	4.50	0.00	20.9	4.7	1.27	.375	0.00	0	1.77	43	9.82	2.8
17	Jack Bentley J. Bentley	11.0	0	1913	WSH	3	1	0	1.000	1	0.00	5	0	0	1	5	0	0	2	0	1		35	1	4.09	1.64	2.50	0.00	14.3	5.7	0.64	.179	0.00	0	2.19	73	4.09	1
18	James Sherfy J. Sherfy	10.2	0	2017	ARI	11	2	0	1.000	0	0.00	9	0	0	1	5	0	0	2	0	2	0	37	0	7.59	1.69	4.50	0.00	24.3	5.4	0.66	.192	0.00	0	2.03	46	4.22	2.7
19	Adam Ottavino A. Ottavino	10.1	0	2015	COL	10	1	0	1.000	0	0.00	13	0	0	3	3	0	0	2	1	5	0	35	0	11.32	1.74	6.50	0.00	37.1	5.7	0.48	.158	0.00	0	1.48	36	2.61	2.9
20	Matt Moore M. Moore	10.0	0	2019	DET	2	0	0		2	0.00	9	0	0	0	3	0	0	1	0	0	0	33	0	8.10	0.90	9.00	0.00	27.3	3.0	0.40	.130	0.00	0	1.70	37	2.70	3.2
21	Howard Bailey H. Bailey	10.0	0	1982	DET	8	0	0		0	0.00	3	0	0	1	6	0	0	2	0	5	1	37	0	2.70	1.80	1.50	0.00	8.1	5.4	0.80	.188	0.00	0	2.71	65	5.40	1.6
22	Tim Jones T. Jones	10.0	0	1977	PIT	3	1	0	1.000	1	0.00	5	0	0	0	4	0	0	3	0	2	0	37	0	4.50	2.70	1.67	0.00	13.5	8.1	0.70	.138	0.00	0	2.63	67	3.60	1.5
23	Dick Brodowski D. Brodowski	10.0	0	1958	CLE	5	1	0	1.000	0	0.00	12	0	0	0	3	0	0	6	0	1	0	37	0	10.80	5.40	2.00	0.00	32.4	16.2	0.90	.158	0.00	0	1.87	50	2.70	2.1
24	Joey Jay J. Jay	10.0	0	1953	MIL	3	1	0	1.000	1	0.00	4	1	1	0	6	0	0	5	0	1		37	1	3.60	4.50	0.80	0.00	10.8	13.5	1.10	.214	0.00	0	3.29	84	5.40	0.7
25	Larry Cheney L. Cheney	10.0	0	1911	CHC	3	1	0	1.000	1	0.00	11	0	0	0	8	0	0	3	0	2		38	0	9.90	2.70	3.67	0.00	28.9	7.9	1.10	.333	0.00	0	1.47	42	7.20	2.2