26 pitchers were tied for allowing the fewest runs in 2017, with 0 runs. The first three are Erick Aybar, Andrew Bailey and Pedro Beato.

Interpreted as:

MLB least runs allowed by a player 2017

	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	Erick Aybar E. Aybar	0	2017	SDP	2	0	0		0	0.00	0	0	0	0	1.1	0	0	0	1	0	2	0	4	0	0.00	6.75	0.00	0.00	0.0	25.0	0.75	.000	0.00	0	5.40	126	0.00	-0.2
2	Andrew Bailey A. Bailey	0	2017	LAA	4	2	0	1.000	0	0.00	2	0	0	0	4.0	1	0	0	0	0	2	0	13	0	4.50	0.00		0.00	15.4	0.0	0.25	.091	0.00	0	2.15	49	2.25	1
3	Pedro Beato P. Beato	0	2017	PHI	1	0	0		0	0.00	1	0	0	0	0.2	0	0	0	0	0	0	0	2	0	13.50	0.00		0.00	50.0	0.0	0.00	.000	0.00	0	0.15	3	0.00	0.3
4	Tyler Cloyd T. Cloyd	0	2017	SEA	1	1	0	1.000	0	0.00	1	0	0	0	1.0	2	0	0	0	0	0	0	4	0	9.00	0.00		0.00	25.0	0.0	2.00	.667	0.00	0	1.15	27	18.00	0.4
5	Tyler Danish T. Danish	0	2017	CWS	1	1	0	1.000	1	0.00	6	0	0	0	5.0	3	0	0	6	0	0	0	23	0	10.80	10.80	1.00	0.00	26.1	26.1	1.80	.273	0.00	0	4.35	98	5.40	0
6	J.D. Davis	0	2017	HOU	2	0	0		0	0.00	3	0	0	0	1.2	1	0	0	1	0	2	0	7	0	16.20	5.40	3.00	0.00	42.9	14.3	1.20	.333	0.00	0	1.35	31	5.40	0.6
7	Daniel Descalso D. Descalso	0	2017	ARI	2	0	0		0	0.00	0	0	0	0	2.0	0	0	0	0	0	2	0	6	0	0.00	0.00		0.00	0.0	0.0	0.00	.000	0.00	0	3.15	72	0.00	0.3
8	Roenis Elias R. Elias	0	2017	BOS	1	0	0		0	0.00	1	0	0	0	0.1	0	0	0	1	0	1	0	2	0	27.00	27.00	1.00	0.00	50.0	50.0	3.00		0.00	0	6.15	142	0.00	-0.1
9	Jake Esch J. Esch	0	2017	SDP	1	0	0		0		0	0	0	0	0.0	0	0	0	2	0	0	0	2	0			0.00		0.0	100.0
10	David Goforth D. Goforth	0	2017	MIL	1	0	0		0	0.00	0	0	0	0	1.0	0	0	0	1	0	1	0	4	0	0.00	9.00	0.00	0.00	0.0	25.0	1.00	.000	0.00	0	6.15	141	0.00	-0.2
11	Jason Gurka J. Gurka	0	2017	LAA	3	0	0		0	0.00	0	0	0	0	0.2	2	0	0	1	0	0	0	5	0	0.00	13.50	0.00	0.00	0.0	20.0	4.50	.500	0.00	0	7.65	174	27.00	-0.2
12	Jon Jay J. Jay	0	2017	CHC	1	0	0		0	0.00	0	0	0	0	1.0	1	0	0	0	0	1	0	4	0	0.00	0.00		0.00	0.0	0.0	1.00	.250	0.00	0	3.15	73	9.00	0.1
13	Damien Magnifico D. Magnifico	0	2017	LAA	1	0	0		0	0.00	1	0	0	0	0.1	0	0	0	2	0	0	0	3	0	27.00	54.00	0.50	0.00	33.3	66.7	6.00		0.00	0	15.15	345	0.00	-0.4
14	Michael Martinez M. Martinez	0	2017	TOT	1	0	0		0	0.00	0	0	0	0	1.0	1	0	0	0	0	1	0	4	0	0.00	0.00		0.00	0.0	0.0	1.00	.250	0.00	0	3.15	72	9.00	0.1
15	Miguel Montero M. Montero	0	2017	TOT	1	0	0		0	0.00	0	0	0	0	1.0	0	0	0	2	0	1	0	5	1	0.00	18.00	0.00	0.00	0.0	40.0	2.00	.000	0.00	0	9.15	212	0.00	-0.5
16	Mitch Moreland M. Moreland	0	2017	BOS	1	0	0		0	0.00	1	0	0	0	1.0	2	0	0	0	0	1	0	5	0	9.00	0.00		0.00	20.0	0.0	2.00	.500	0.00	0	1.15	26	18.00	0.4
17	Tyler Olson T. Olson	0	2017	CLE	30	1	0	1.000	0	0.00	18	0	0	1	20.0	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
18	Hernan Perez H. Perez	0	2017	MIL	1	0	0		0	0.00	0	0	0	0	1.0	1	0	0	1	0	1	0	5	0	0.00	9.00	0.00	0.00	0.0	20.0	2.00	.250	0.00	0	6.15	141	9.00	-0.2
19	Andrew Romine A. Romine	0	2017	DET	2	0	0		0	0.00	0	0	0	0	1.0	1	0	0	1	1	1	0	6	0	0.00	9.00	0.00	0.00	0.0	16.7	2.00	.250	0.00	0	9.15	207	9.00	-0.5
20	José Ruiz J. Ruiz	0	2017	SDP	1	0	0		0	0.00	1	0	0	0	1.0	0	0	0	1	0	1	0	4	0	9.00	9.00	1.00	0.00	25.0	25.0	1.00	.000	0.00	0	4.15	97	0.00	0
21	Luis Sardinas L. Sardinas	0	2017	SDP	1	0	0		0	0.00	0	0	0	0	1.0	1	0	0	0	0	1	0	4	0	0.00	0.00		0.00	0.0	0.0	1.00	.250	0.00	0	3.15	74	9.00	0.1
22	James Sherfy J. Sherfy	0	2017	ARI	11	2	0	1.000	0	0.00	9	0	0	1	10.2	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
23	Dan Slania D. Slania	0	2017	SFG	1	0	0		0	0.00	0	0	0	0	1.0	0	0	0	0	0	1	0	3	0	0.00	0.00		0.00	0.0	0.0	0.00	.000	0.00	0	3.15	78	0.00	0.1
24	Huston Street H. Street	0	2017	LAA	4	0	0		0	0.00	3	0	0	0	4.0	2	0	0	1	0	2	0	15	0	6.75	2.25	3.00	0.00	20.0	6.7	0.75	.182	0.00	0	2.40	55	4.50	0.9
25	Thyago Vieira T. Vieira	0	2017	SEA	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	1.15	27	0.00	0.4