which pitcher has the most career scoreless starts allowing 1 earned runs in the playoffs

Andy Pettitte has the most career starts in the postseason when allowing 1+ earned run, with 38 starts.

Interpreted as:

Which pitcher has the most career scoreless starts allowing 1 or more earned runs in the playoffs?

	NAME	GS	ER	G	W	L	W%	ERA	SO	CG	SHO	SV	IP	H	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Andy Pettitte A. Pettitte	38	117	38	15	11	.577	4.55	155	0	0	0	231.1	249	118	31	63	3	0	3	980	4	6.03	2.45	2.46	1.21	15.8	6.4	1.35	.299	4.59	9.69
2	Justin Verlander J. Verlander	31	90	32	12	12	.500	4.45	190	1	0	0	182.0	159	93	32	64	3	0	0	762	8	9.40	3.16	2.97	1.58	24.9	8.4	1.23	.268	4.60	7.86
3	Tom Glavine T. Glavine	29	80	29	8	16	.333	4.11	116	3	0	0	175.1	166	91	21	77	7	0	11	757	2	5.95	3.95	1.51	1.08	15.3	10.2	1.39	.271	4.67	8.52
4	Roger Clemens R. Clemens	29	83	29	8	8	.500	4.64	132	0	0	0	161.0	161	87	17	58	5	0	1	698	7	7.38	3.24	2.28	0.95	18.9	8.3	1.36	.296	4.86	9.00
5	Clayton Kershaw C. Kershaw	27	97	30	10	12	.455	5.74	172	0	0	0	152.0	151	99	30	44	3	0	3	640	9	10.18	2.61	3.91	1.78	26.9	6.9	1.28	.309	5.86	8.94
6	Greg Maddux G. Maddux	26	72	26	8	13	.381	3.98	101	1	0	0	163.0	175	86	14	45	8	0	14	702	4	5.58	2.48	2.24	0.77	14.4	6.4	1.35	.301	4.75	9.66
7	CC Sabathia	22	62	23	9	7	.563	4.52	116	1	0	0	123.1	134	67	15	59	7	0	9	555	5	8.46	4.31	1.97	1.09	20.9	10.6	1.56	.332	4.89	9.78
8	John Smoltz J. Smoltz	22	62	28	12	2	.857	3.52	150	1	0	2	158.1	135	64	17	52	2	4	6	654	6	8.53	2.96	2.88	0.97	22.9	8.0	1.18	.273	3.64	7.67
9	Max Scherzer M. Scherzer	21	60	24	5	8	.385	4.51	141	0	0	0	119.2	101	62	20	47	8	0	4	508	6	10.60	3.53	3.00	1.50	27.8	9.3	1.24	.277	4.66	7.60
10	Gerrit Cole G. Cole	19	41	19	9	6	.600	3.29	128	0	0	0	112.0	88	45	19	26	3	0	1	450	1	10.29	2.09	4.92	1.53	28.4	5.8	1.02	.252	3.62	7.07
11	Zack Greinke Z. Greinke	19	52	19	4	6	.400	4.63	89	0	0	0	101.0	95	55	19	31	2	0	0	423	1	7.93	2.76	2.87	1.69	21.0	7.3	1.25	.270	4.90	8.47
12	John Lackey J. Lackey	19	55	22	4	6	.400	4.50	86	0	0	0	110.0	118	58	7	43	4	1	6	481	7	7.04	3.52	2.00	0.57	17.9	8.9	1.46	.326	4.75	9.65
13	Mike Mussina M. Mussina	18	53	19	5	8	.385	4.11	124	0	0	0	116.0	109	56	19	30	3	0	7	487	2	9.62	2.33	4.13	1.47	25.5	6.2	1.20	.289	4.34	8.46
14	Jon Lester J. Lester	17	43	20	5	7	.417	3.35	102	0	0	0	115.2	93	45	15	32	3	1	0	465	4	7.94	2.49	3.19	1.17	21.9	6.9	1.08	.249	3.50	7.24
15	Dave Stewart D. Stewart	17	41	19	9	6	.600	3.02	66	2	0	0	122.1	93	45	13	45	4	1	0	498	4	4.86	3.31	1.47	0.96	13.3	9.0	1.13	.216	3.31	6.84
16	Catfish Hunter C. Hunter	17	48	18	7	6	.538	3.79	64	3	0	0	114.0	105	49	21	31	0	0	6	470	2	5.05	2.45	2.06	1.66	13.6	6.6	1.19	.237	3.87	8.29
17	Whitey Ford W. Ford	17	44	17	5	8	.385	3.76	72	4	0	0	105.1	108	49	8	30	1	0	2	445	4	6.15	2.56	2.40	0.68	16.2	6.7	1.31	.299	4.19	9.23
18	David Cone D. Cone	16	47	16	6	3	.667	4.39	83	1	0	0	96.1	90	52	12	52	2	0	1	427	6	7.75	4.86	1.60	1.12	19.4	12.2	1.47	.281	4.86	8.41
19	Framber Valdez F. Valdez	15	41	15	5	6	.455	5.05	81	0	0	0	73.0	76	43	14	32	4	0	0	316	0	9.99	3.95	2.53	1.73	25.6	10.1	1.48	.335	5.30	9.37
20	Adam Wainwright A. Wainwright	15	36	16	3	5	.375	3.53	96	1	0	0	91.2	92	39	11	18	2	0	1	380	3	9.43	1.77	5.33	1.08	25.3	4.7	1.20	.320	3.83	9.03
21	Curt Schilling C. Schilling	15	33	15	7	2	.778	2.90	97	2	0	0	102.1	86	36	12	19	3	0	0	409	1	8.53	1.67	5.11	1.06	23.7	4.6	1.03	.266	3.17	7.56
22	Chris Carpenter C. Carpenter	14	36	14	6	4	.600	4.08	54	0	0	0	79.1	88	43	11	31	5	0	2	355	0	6.13	3.52	1.74	1.25	15.2	8.7	1.50	.303	4.88	9.98
23	Randy Johnson R. Johnson	14	47	15	4	9	.308	4.35	107	1	0	0	97.1	97	51	15	29	0	1	2	411	0	9.89	2.68	3.69	1.39	26.0	7.1	1.29	.315	4.72	8.97
24	David Wells D. Wells	14	44	16	8	5	.615	4.03	56	1	0	0	98.1	100	47	12	17	6	0	1	403	1	5.13	1.56	3.29	1.10	13.9	4.2	1.19	.282	4.30	9.15
25	Orel Hershiser O. Hershiser	14	38	14	5	3	.625	3.64	64	2	0	0	94.0	87	43	8	33	3	0	3	395	4	6.13	3.16	1.94	0.77	16.2	8.4	1.28	.275	4.12	8.33