Randy Johnson had the most games pitched when striking out 13+ batters, with 69 games.

Interpreted as:

most 13 or more strikeout regular-season games by a pitcher

	NAME	G	SO	W	L	W%	GS	ERA	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Randy Johnson R. Johnson	69	1,002	43	10	.811	68	1.75	29	12	0	556.1	345	108	124	34	146	17	1	5	2,145	10	16.21	2.36	6.86	0.55	46.7	6.8	0.88	.329	2.01	5.58
2	Nolan Ryan N. Ryan	56	823	36	11	.766	56	1.61	38	12	0	504.2	241	90	108	18	231	13	0	6	1,983	26	14.68	4.12	3.56	0.32	41.5	11.6	0.94	.248	1.93	4.30
3	Sandy Koufax S. Koufax	31	433	27	3	.900	31	1.30	26	10	0	291.0	138	42	51	18	87	2	0	6	1,099	7	13.39	2.69	4.98	0.56	39.4	7.9	0.77	.215	1.58	4.27
4	Roger Clemens R. Clemens	26	379	21	2	.913	26	1.05	17	8	0	222.0	147	26	29	7	25	5	0	2	832	5	15.36	1.01	15.16	0.28	45.6	3.0	0.77	.337	1.18	5.96
5	Pedro Martinez P. Martinez	23	329	17	3	.850	23	1.02	9	5	0	184.2	105	21	26	4	34	7	0	1	700	2	16.03	1.66	9.68	0.19	47.0	4.9	0.75	.310	1.27	5.12
6	Chris Sale C. Sale	20	276	11	2	.846	20	1.22	2	0	0	154.2	72	21	23	8	19	5	0	0	559	2	16.06	1.11	14.53	0.47	49.4	3.4	0.59	.255	1.34	4.19
7	Sam McDowell S. McDowell	20	282	14	4	.778	20	1.26	15	2	0	178.1	95	25	30	6	72	4	1	5	696	5	14.23	3.63	3.92	0.30	40.5	10.3	0.94	.268	1.51	4.79
8	Max Scherzer M. Scherzer	18	259	13	0	1.000	18	1.18	3	2	0	137.0	69	18	20	10	23	4	0	1	505	1	17.01	1.51	11.26	0.66	51.3	4.6	0.67	.282	1.31	4.53
9	Curt Schilling C. Schilling	18	250	14	3	.824	18	1.84	4	2	0	142.0	90	29	31	17	20	1	0	0	530	3	15.85	1.27	12.50	1.08	47.2	3.8	0.77	.302	1.96	5.70
10	Tom Seaver T. Seaver	17	241	13	2	.867	17	1.06	13	5	0	153.0	69	18	18	8	28	2	0	2	553	1	14.18	1.65	8.61	0.47	43.6	5.1	0.63	.223	1.06	4.06
11	Steve Carlton S. Carlton	16	230	11	4	.733	16	2.94	14	1	0	141.0	120	46	49	15	36	0	0	2	567	8	14.68	2.30	6.39	0.96	40.6	6.3	1.11	.367	3.13	7.66
12	Bob Gibson B. Gibson	16	218	13	3	.813	16	1.45	16	6	0	149.0	88	24	28	4	25	1	0	2	554	1	13.17	1.51	8.72	0.24	39.4	4.5	0.76	.275	1.69	5.32
13	Clayton Kershaw C. Kershaw	15	203	13	0	1.000	15	0.66	7	5	0	123.0	50	9	9	6	9	1	0	0	425	2	14.85	0.66	22.56	0.44	47.8	2.1	0.48	.214	0.66	3.66
14	Jacob deGrom J. deGrom	13	177	4	2	.667	13	1.78	1	1	0	91.0	55	18	21	7	11	0	0	1	336	1	17.51	1.09	16.09	0.69	52.7	3.3	0.73	.340	2.08	5.44
15	Mickey Lolich M. Lolich	13	182	8	2	.800	13	1.64	8	0	0	115.0	72	21	21	3	30	8	0	0	450	3	14.24	2.35	6.07	0.23	40.4	6.7	0.89	.304	1.64	5.63
16	Jim Maloney J. Maloney	12	165	10	1	.909	12	0.82	9	5	0	109.1	42	10	10	1	35	1	0	0	396	3	13.58	2.88	4.71	0.08	41.7	8.8	0.70	.211	0.82	3.46
17	Bob Feller B. Feller	12	172	10	2	.833	12	1.21	12	4	0	112.0	69	15	18	2	56	3	0		458	3	13.82	4.50	3.07	0.16	37.6	12.2	1.12	.298	1.45	5.54
18	Gerrit Cole G. Cole	11	156	6	0	1.000	11	1.75	1	1	0	77.1	38	15	17	10	9	2	0	0	283	4	18.16	1.05	17.33	1.16	55.1	3.2	0.61	.264	1.98	4.42
19	J.R. Richard	11	150	9	1	.900	11	1.44	9	2	0	100.0	52	16	19	4	22	1	0	2	379	9	13.50	1.98	6.82	0.36	39.6	5.8	0.74	.238	1.71	4.68
20	Herb Score H. Score	11	151	10	1	.909	11	1.36	10	3	0	99.1	49	15	16	3	55	0	0	0	400	6	13.68	4.98	2.75	0.27	37.8	13.8	1.05	.241	1.45	4.44
21	Corey Kluber C. Kluber	10	139	7	0	1.000	10	1.55	0	0	0	75.2	45	13	16	6	13	2	0	1	285	0	16.53	1.55	10.69	0.71	48.8	4.6	0.77	.312	1.90	5.35
22	Stephen Strasburg S. Strasburg	10	136	8	1	.889	10	1.38	0	0	0	71.2	33	11	13	4	12	1	0	0	258	1	17.08	1.51	11.33	0.50	52.7	4.7	0.63	.276	1.63	4.14
23	Justin Verlander J. Verlander	10	137	7	0	1.000	10	1.44	1	1	0	75.0	44	12	15	5	9	1	0	0	282	1	16.44	1.08	15.22	0.60	48.6	3.2	0.71	.300	1.80	5.28
24	Kerry Wood K. Wood	10	142	7	0	1.000	10	1.30	2	2	0	76.0	30	11	12	4	27	3	0	1	285	0	16.82	3.20	5.26	0.47	49.8	9.5	0.75	.239	1.42	3.55
25	Don Wilson D. Wilson	10	143	9	1	.900	10	1.52	10	2	0	89.0	51	15	19	6	32	1	0	1	350	6	14.46	3.24	4.47	0.61	40.9	9.1	0.93	.268	1.92	5.16