who is all-time strikeout leader in first 15 seasons

Randy Johnson struck out the most batters by a pitcher in his first 15 seasons, with 3,746 strikeouts.

	NAME	SO	G	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	ERA-	FIP	FIP-	H/9	PRAA
1	Randy Johnson R. Johnson	3,746	436	224	106	.679	426	3.06	87	34	2	3008.1	2,310	1,023	1,154	267	1,231	138	5	19	12,411	91	11.21	3.68	3.04	0.80	30.2	9.9	1.18	.291	3.45	70	3.03	70	6.91	451
2	Nolan Ryan N. Ryan	3,249	452	189	174	.521	418	3.11	178	47	3	3074.0	2,193	1,061	1,211	161	1,812	84	13	44	12,991	151	9.51	5.31	1.79	0.47	25.0	13.9	1.30	.264	3.55	89	3.00	86	6.42	180.8
3	Max Scherzer M. Scherzer	3,193	430	201	102	.663	421	3.11	12	5	0	2682.0	2,180	927	998	300	701	107	2	20	10,831	74	10.71	2.35	4.55	1.01	29.5	6.5	1.07	.288	3.35	75	3.09	75	7.32	309.9
4	Roger Clemens R. Clemens	3,153	450	233	124	.653	449	2.95	114	44	0	3274.2	2,732	1,072	1,188	214	1,012	105	0	44	13,389	82	8.67	2.78	3.12	0.59	23.5	7.6	1.14	.283	3.27	67	2.85	67	7.51	502.1
5	Tom Seaver T. Seaver	3,075	504	259	143	.644	498	2.60	208	54	1	3789.0	3,015	1,095	1,201	282	1,074	52	5	96	15,176	94	7.30	2.55	2.86	0.67	20.3	7.1	1.08	.256	2.85	74	2.80	81	7.16	284.5
6	Justin Verlander J. Verlander	3,006	453	225	129	.636	453	3.33	26	9	0	2982.0	2,535	1,103	1,190	308	850	98	0	27	12,193	87	9.07	2.57	3.54	0.93	24.7	7.0	1.14	.281	3.59	78	3.40	80	7.65	281.3
7	Pedro Martinez P. Martinez	2,998	442	206	92	.691	375	2.81	46	17	3	2645.2	2,013	825	907	213	701	129	23	26	10,582	59	10.20	2.38	4.28	0.72	28.3	6.6	1.03	.275	3.09	63	2.80	65	6.85	457.7
8	Bob Gibson B. Gibson	2,928	473	237	151	.611	435	2.79	245	55	4	3535.1	2,923	1,095	1,243	223	1,170	93	17	98	14,528	100	7.45	2.98	2.50	0.57	20.2	8.1	1.16	.267	3.16	75	2.76	77	7.44	321.5
9	Walter Johnson W. Johnson	2,835	600	322	215	.600	486	1.80	425	91	26	4498.1	3,545	902	1,293	43	937	149	107		17,438	141	5.67	1.87	3.03	0.09	16.3	5.4	1.00	.260	2.59	62	2.06	71	7.09	413.1
10	Mickey Lolich M. Lolich	2,812	559	217	189	.534	491	3.42	195	41	10	3589.0	3,307	1,364	1,504	343	1,077	92	33	64	14,917	122	7.05	2.70	2.61	0.86	18.9	7.2	1.22	.280	3.77	96	3.18	87	8.29	192.5
11	Clayton Kershaw C. Kershaw	2,807	401	197	87	.694	398	2.48	25	15	0	2581.0	1,955	711	777	206	629	39	1	27	10,160	95	9.79	2.19	4.46	0.72	27.6	6.2	1.00	.270	2.71	64	2.75	68	6.82	358.4
12	Fergie Jenkins F. Jenkins	2,770	549	247	182	.576	486	3.25	249	47	7	3812.0	3,433	1,377	1,527	410	791	69	34	97	15,469	50	6.54	1.87	3.50	0.97	17.9	5.1	1.11	.265	3.61	85	3.17	85	8.11	225.6
13	Steve Carlton S. Carlton	2,683	487	225	160	.584	469	3.08	200	42	1	3485.1	3,068	1,194	1,356	279	1,202	41	7	100	14,412	107	6.93	3.10	2.23	0.72	18.6	8.3	1.23	.273	3.50	85	3.13	87	7.92	171.1
14	Gaylord Perry G. Perry	2,670	555	231	188	.551	470	2.91	257	44	10	3859.1	3,368	1,247	1,432	283	999	77	31	130	15,687	117	6.23	2.33	2.67	0.66	17.0	6.4	1.13	.265	3.34	82	2.93	84	7.85	233.7
15	Bert Blyleven B. Blyleven	2,669	468	195	167	.539	462	3.00	176	46	0	3422.1	3,079	1,141	1,277	244	939	91	3	57	14,026	77	7.02	2.47	2.84	0.64	19.0	6.7	1.17	.281	3.36	80	2.88	77	8.10	328
16	Don Sutton D. Sutton	2,652	534	230	175	.568	517	3.07	156	52	5	3729.0	3,200	1,273	1,406	302	966	61	12	85	15,187	84	6.40	2.33	2.75	0.73	17.5	6.4	1.12	.259	3.39	90	3.02	88	7.72	157.9
17	Jim Bunning J. Bunning	2,650	528	209	157	.571	470	3.14	146	40	15	3431.1	3,074	1,199	1,344	342	907	146	31	82	14,197	45	6.95	2.38	2.92	0.90	18.7	6.4	1.16	.269	3.53	85	3.19	87	8.06	186.5
18	CC Sabathia	2,574	452	214	129	.624	452	3.69	38	12	0	2988.2	2,831	1,225	1,340	293	894	95	0	42	12,465	64	7.75	2.69	2.88	0.88	20.6	7.2	1.25	.295	4.04	86	3.62	84	8.53	229.7
19	Tim Keefe T. Keefe	2,564	600	342	225	.603	594	2.63	554	39	2	5049.2	4,438	1,474	2,470	75	1,233	83	7		20,941	240	4.57	2.20	2.08	0.13	12.2	5.9	1.12	.257	4.40	79	2.92	87	7.91	239.2
20	Cole Hamels C. Hamels	2,560	423	163	122	.572	422	3.43	17	7	0	2698.0	2,424	1,027	1,103	310	767	100	0	43	11,115	57	8.54	2.56	3.34	1.03	23.0	6.9	1.18	.287	3.68	82	3.68	88	8.09	151.3
21	David Cone D. Cone	2,540	420	184	116	.613	390	3.40	56	22	1	2745.0	2,336	1,037	1,135	237	1,067	96	9	37	11,485	140	8.33	3.50	2.38	0.78	22.1	9.3	1.24	.278	3.72	83	3.50	84	7.66	198.5
22	Javier Vazquez J. Vazquez	2,536	450	165	160	.508	443	4.22	28	8	0	2840.0	2,784	1,331	1,431	373	763	88	5	58	11,935	76	8.04	2.42	3.32	1.18	21.2	6.4	1.25	.295	4.53	96	3.90	88	8.82	164.4
23	Chris Sale C. Sale	2,528	387	143	87	.622	307	3.02	16	3	12	2047.2	1,668	686	739	209	481	126	25	15	8,249	47	11.11	2.11	5.26	0.92	30.6	5.8	1.05	.297	3.25	71	2.88	69	7.33	297.2
24	Felix Hernandez F. Hernandez	2,524	419	169	136	.554	418	3.42	25	11	0	2729.2	2,487	1,037	1,157	264	805	105	0	16	11,284	156	8.32	2.65	3.14	0.87	22.4	7.1	1.21	.293	3.81	84	3.52	85	8.20	181.5
25	Don Drysdale D. Drysdale	2,486	518	209	166	.557	465	2.95	167	49	6	3432.0	3,084	1,124	1,292	280	855	154	34	123	14,097	82	6.52	2.24	2.91	0.73	17.6	6.1	1.15	.272	3.39	83	3.02	88	8.09	162.2