10 pitchers were tied for allowing the fewest runs in 2001, with 0 runs. The first three are Brian Bowles, Chris Donnels and Steve Finley.

Interpreted as:

fewest runs allowed by a player in 2001

	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	ERA-	FIP	FIP-	H/9	PRAA
1	Brian Bowles B. Bowles	0	2001	TOR	2	0	0		0	0.00	4	0	0	0	3.2	4	0	0	1	0	0	0	15	1	9.82	2.45	4.00	0.00	26.7	6.7	1.36	.400	0.00	0	1.68	38	9.82	1.1
2	Chris Donnels C. Donnels	0	2001	LAD	1	0	0		0	0.00	0	0	0	0	0.1	0	0	0	0	0	1	0	1	0	0.00	0.00		0.00	0.0	0.0	0.00	.000	0.00	0	3.04	70	0.00	0
3	Steve Finley S. Finley	0	2001	ARI	1	0	0		0	0.00	0	0	0	0	1.0	0	0	0	1	1	1	0	4	0	0.00	9.00	0.00	0.00	0.0	25.0	1.00	.000	0.00	0	9.04	204	0.00	-0.5
4	Chad Harville C. Harville	0	2001	OAK	3	0	0		0	0.00	2	0	0	0	3.0	2	0	0	0	0	1	0	11	1	6.00	0.00		0.00	18.2	0.0	0.67	.222	0.00	0	1.71	39	6.00	0.9
5	Tim Laker T. Laker	0	2001	CLE	1	0	0		0	0.00	1	0	0	0	1.0	1	0	0	1	0	1	0	5	0	9.00	9.00	1.00	0.00	20.0	20.0	2.00	.333	0.00	0	4.04	90	9.00	0
6	Mark Loretta M. Loretta	0	2001	MIL	1	0	0		0	0.00	2	0	0	0	1.0	1	0	0	1	0	1	0	5	0	18.00	9.00	2.00	0.00	40.0	20.0	2.00	.500	0.00	0	2.04	46	9.00	0.3
7	Doug Nickle D. Nickle	0	2001	PHI	2	0	0		0	0.00	1	0	0	0	2.0	1	0	0	0	0	2	0	7	0	4.50	0.00		0.00	14.3	0.0	0.50	.167	0.00	0	2.04	47	4.50	0.5
8	Jimmy Osting J. Osting	0	2001	SDP	3	0	0		0	0.00	3	0	0	0	2.0	1	0	0	2	0	1	1	9	0	13.50	9.00	1.50	0.00	33.3	22.2	1.50	.250	0.00	0	3.04	72	4.50	0.3
9	Desi Relaford D. Relaford	0	2001	NYM	1	0	0		0	0.00	1	0	0	0	1.0	0	0	0	0	0	1	0	3	0	9.00	0.00		0.00	33.3	0.0	0.00	.000	0.00	0	1.04	24	0.00	0.4
10	Scott Williamson S. Williamson	0	2001	CIN	2	0	0		0	0.00	0	0	0	0	0.2	1	0	0	2	1	0	0	6	1	0.00	27.00	0.00	0.00	0.0	33.3	4.50	.333	0.00	0	16.54	365	13.50	-0.9
11	Tim Christman T. Christman	1	2001	COL	1	0	0		0	4.50	2	0	0	0	2.0	1	1	1	0	0	1	0	7	0	9.00	0.00		4.50	28.6	0.0	0.50	.000	4.50	86	7.54	156	4.50	-0.5
12	Francisco Cordero F. Cordero	1	2001	TEX	3	0	1	.000	0	3.86	1	0	0	0	2.1	3	1	0	2	0	2	1	12	1	3.86	7.71	0.50	0.00	8.3	16.7	2.14	.333	3.86	82	4.76	104	11.57	0
13	Valerio De Los Santos V. De Los Santos	1	2001	MIL	1	0	0		0	9.00	1	0	0	0	1.0	1	1	0	1	0	0	0	5	0	9.00	9.00	1.00	0.00	20.0	20.0	2.00	.333	9.00	207	4.04	91	9.00	0
14	Jason Karnuth J. Karnuth	1	2001	STL	4	0	0		0	1.80	1	0	0	0	5.0	6	1	1	4	1	1	0	24	0	1.80	7.20	0.25	1.80	4.2	16.7	2.00	.294	1.80	42	8.24	187	10.80	-2.1
15	Ariel Prieto A. Prieto	1	2001	TBD	3	0	0		0	2.45	2	0	0	0	3.2	6	1	0	2	1	2	0	19	0	4.91	4.91	1.00	0.00	10.5	10.5	2.18	.429	2.45	55	4.41	101	14.73	0
16	Scot Shields S. Shields	1	2001	ANA	8	0	0		0	0.00	7	0	0	0	11.0	8	0	0	7	1	6	0	48	2	5.73	5.73	1.00	0.00	14.6	14.6	1.36	.242	0.82	0	3.95	89	6.55	0.6
17	Scott Sobkowiak S. Sobkowiak	1	2001	ATL	1	0	0		0	9.00	0	0	0	0	1.0	2	1	0	0	0	1	0	5	0	0.00	0.00		0.00	0.0	0.0	2.00	.400	9.00	211	3.04	70	18.00	0.1
18	Tim Spooneybarger T. Spooneybarger	1	2001	ATL	4	0	1	.000	0	2.25	3	0	0	0	4.0	5	1	0	2	0	3	1	19	0	6.75	4.50	1.50	0.00	15.8	10.5	1.75	.357	2.25	53	3.04	70	11.25	0.6
19	Joe Strong J. Strong	1	2001	FLA	5	0	0		0	1.35	4	0	0	0	6.2	3	1	1	3	0	2	0	25	0	5.40	4.05	1.33	1.35	16.0	12.0	0.90	.118	1.35	32	5.14	121	4.05	-0.7
20	Billy Taylor B. Taylor	1	2001	PIT	1	0	0		0	4.50	3	0	0	0	2.0	2	1	1	0	0	0	0	8	0	13.50	0.00		4.50	37.5	0.0	1.00	.250	4.50	103	6.54	150	9.00	-0.5
21	Bobby Bonilla B. Bonilla	2	2001	STL	1	0	0		0	18.00	0	0	0	0	1.0	3	2	1	1	0	1	0	6	0	0.00	9.00	0.00	9.00	0.0	16.7	4.00	.500	18.00	422	19.04	433	27.00	-1.6
22	Carlos Castillo C. Castillo	2	2001	BOS	2	0	0		0	6.00	0	0	0	0	3.0	3	2	1	0	0	1	0	12	0	0.00	0.00		3.00	0.0	0.0	1.00	.182	6.00	131	7.38	172	9.00	-1.1
23	Scott Chiasson S. Chiasson	2	2001	CHC	6	1	1	.500	0	2.70	6	0	0	0	6.2	5	2	2	2	1	3	0	28	1	8.10	2.70	3.00	2.70	21.4	7.1	1.05	.176	2.70	63	6.49	148	6.75	-1.6
24	Steve Green S. Green	2	2001	ANA	1	0	0		1	3.00	4	0	0	0	6.0	4	2	0	6	0	0	0	27	2	6.00	9.00	0.67	0.00	14.8	22.2	1.67	.235	3.00	68	4.71	106	6.00	-0.2
25	Carlos Hernandez C. Hernandez	2	2001	HOU	3	1	0	1.000	3	1.02	17	0	0	0	17.2	11	2	1	7	0	0	0	70	2	8.66	3.57	2.43	0.51	24.3	10.0	1.02	.222	1.02	22	3.04	68	5.60	2.7