12 pitchers were tied for allowing the fewest runs in 1990, with 0 runs. The first three are Doug Dascenzo, Mauro Gozzo and Randy Hennis.

Interpreted as:

least runs allowed by a player 1990

	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	Doug Dascenzo D. Dascenzo	0	1990	CHC	1	0	0		0	0.00	0	0	0	0	1.0	1	0	0	0	0	1	0	3	0	0.00	0.00		0.00	0.0	0.0	1.00	.333	0.00	0	2.80	72	9.00	0.1
2	Mauro Gozzo M. Gozzo	0	1990	CLE	2	0	0		0	0.00	2	0	0	0	3.0	2	0	0	2	0	1	0	13	0	6.00	6.00	1.00	0.00	15.4	15.4	1.33	.222	0.00	0	3.47	90	6.00	0.1
3	Randy Hennis R. Hennis	0	1990	HOU	3	0	0		1	0.00	4	0	0	0	9.2	1	0	0	3	1	1	0	34	0	3.72	2.79	1.33	0.00	11.8	8.8	0.41	.038	0.00	0	3.21	89	0.93	0.4
4	Donnie Hill D. Hill	0	1990	CAL	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	3.80	96	0.00	0
5	Howard Hilton H. Hilton	0	1990	STL	2	0	0		0	0.00	2	0	0	0	3.0	2	0	0	3	0	1	0	14	0	6.00	9.00	0.67	0.00	14.3	21.4	1.67	.222	0.00	0	4.47	118	6.00	-0.2
6	Al Leiter A. Leiter	0	1990	TOR	4	0	0		0	0.00	5	0	0	0	6.1	1	0	0	2	0	2	0	22	0	7.11	2.84	2.50	0.00	22.7	9.1	0.47	.067	0.00	0	2.17	54	1.42	1.3
7	Bob MacDonald B. MacDonald	0	1990	TOR	4	0	0		0	0.00	0	0	0	0	2.1	0	0	0	2	0	1	0	8	0	0.00	7.71	0.00	0.00	0.0	25.0	0.86	.000	0.00	0	5.37	133	0.00	-0.3
8	Bob Malloy B. Malloy	0	1990	MON	1	0	0		0	0.00	1	0	0	0	2.0	1	0	0	1	0	0	0	8	0	4.50	4.50	1.00	0.00	12.5	12.5	1.00	.167	0.00	0	3.30	89	4.50	0.1
9	Junior Noboa J. Noboa	0	1990	MON	1	0	0		0	0.00	0	0	0	0	0.2	0	0	0	1	0	1	0	2	0	0.00	13.50	0.00	0.00	0.0	50.0	1.50	.000	0.00	0	7.30	197	0.00	-0.3
10	Vicente Palacios V. Palacios	0	1990	PIT	7	0	0		0	0.00	8	0	0	3	15.0	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
11	Jeff Richardson J. Richardson	0	1990	CAL	1	0	0		0	0.00	0	0	0	0	0.1	1	0	0	0	0	1	0	2	0	0.00	0.00		0.00	0.0	0.0	3.00	.500	0.00	0	2.80	71	27.00	0
12	Rich Thompson R. Thompson	0	1990	MON	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	2.80	75	9.00	0.1
13	Stan Clarke S. Clarke	1	1990	STL	2	0	0		0	2.70	3	0	0	0	3.1	2	1	0	0	0	2	0	12	0	8.10	0.00		0.00	25.0	0.0	0.60	.222	2.70	71	1.00	26	5.40	1
14	Brett Gideon B. Gideon	1	1990	MON	1	0	0		0	9.00	0	0	0	0	1.0	2	1	0	4	0	0	1	8	0	0.00	36.00	0.00	0.00	0.0	50.0	6.00	.500	9.00	237	14.80	399	18.00	-1.3
15	Tom Gilles T. Gilles	1	1990	TOR	2	1	0	1.000	0	6.75	1	0	0	0	1.1	2	1	0	0	0	1	0	6	0	6.75	0.00		0.00	16.7	0.0	1.50	.400	6.75	171	1.30	32	13.50	0.4
16	Danny Heep D. Heep	1	1990	BOS	1	0	0		0	9.00	0	0	0	0	1.0	4	1	0	0	0	1	0	6	0	0.00	0.00		0.00	0.0	0.0	4.00	.667	9.00	219	2.80	71	36.00	0.1
17	Shawn Hillegas S. Hillegas	1	1990	CWS	7	0	0		0	0.79	5	0	0	0	11.1	4	1	0	5	0	3	1	43	2	3.97	3.97	1.00	0.00	11.6	11.6	0.79	.121	0.79	20	3.24	85	3.18	0.7
18	Vance Lovelace V. Lovelace	1	1990	SEA	5	0	0		0	3.86	1	0	0	0	2.1	3	1	0	6	1	1	0	17	2	3.86	23.14	0.17	0.00	5.9	35.3	3.86	.333	3.86	97	10.94	274	11.57	-1.8
19	Steve Lyons S. Lyons	1	1990	CWS	1	0	0		0	4.50	1	0	0	0	2.0	2	1	0	4	0	1	0	12	0	4.50	18.00	0.25	0.00	8.3	33.3	3.00	.286	4.50	115	7.80	204	9.00	-0.9
20	Gino Minutelli G. Minutelli	1	1990	CIN	2	0	0		0	9.00	0	0	0	0	1.0	0	1	0	2	1	0	0	6	1	0.00	18.00	0.00	0.00	0.0	33.3	2.00	.000	9.00	231	11.80	297	0.00	-0.8
21	Brad Moore B. Moore	1	1990	PHI	3	0	0		0	3.38	1	0	0	0	2.2	4	1	0	2	0	3	1	13	1	3.38	6.75	0.50	0.00	7.7	15.4	2.25	.400	3.38	88	4.30	112	13.50	-0.1
22	Dickie Noles D. Noles	1	1990	PHI	1	0	1	.000	0	27.00	0	0	0	0	0.1	2	1	0	0	0	1	0	3	0	0.00	0.00		0.00	0.0	0.0	6.00	.667	27.00	705	2.80	73	54.00	0
23	Mike Schwabe M. Schwabe	1	1990	DET	1	0	0		0	2.45	1	0	0	0	3.2	5	1	0	0	0	0	0	15	0	2.45	0.00		0.00	6.7	0.0	1.36	.357	2.45	63	2.25	56	12.27	0.7
24	Doug Sisk D. Sisk	1	1990	ATL	3	0	0		0	3.86	1	0	0	0	2.1	1	1	0	4	0	2	0	13	1	3.86	15.43	0.25	0.00	7.7	30.8	2.14	.125	3.86	97	7.09	182	3.86	-0.8
25	Steve Chitren S. Chitren	2	1990	OAK	8	1	0	1.000	0	1.02	19	0	0	0	17.2	7	2	0	4	0	4	0	64	2	9.68	2.04	4.75	0.00	29.7	6.3	0.62	.171	1.02	27	1.33	35	3.57	5