Will Warren has fanned the most hitters by a rookie this season, with 90 strikeouts.

Interpreted as:

most strikeout by a rookie pitcher this regular season

	NAME	SO	SEASON	TM	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	Will Warren W. Warren	90	2025	NYY	15	4	4	.500	15	4.83	0	0	0	69.0	63	37	39	6	29	1	0	0	300	2	11.74	3.78	3.10	0.78	30.0	9.7	1.33	.328	5.09	121	2.88	69	8.22	9.8
2	Chad Patrick C. Patrick	76	2025	MIL	16	3	7	.300	15	3.50	0	0	0	79.2	76	31	31	8	26	4	0	1	337	0	8.59	2.94	2.92	0.90	22.6	7.7	1.28	.305	3.50	86	3.58	89	8.59	4
3	Shane Smith S. Smith	66	2025	CWS	14	3	4	.429	14	2.85	0	0	0	72.2	59	23	31	4	30	8	0	0	310	5	8.17	3.72	2.20	0.50	21.3	9.7	1.22	.272	3.84	71	3.52	84	7.31	5.3
4	Sean Burke S. Burke	61	2025	CWS	15	3	7	.300	13	4.50	0	0	0	76.0	73	38	44	11	35	4	0	0	333	2	7.22	4.14	1.74	1.30	18.3	10.5	1.42	.279	5.21	112	4.87	116	8.64	-5.5
5	Ryan Gusto R. Gusto	60	2025	HOU	16	4	3	.571	10	4.31	0	0	0	54.1	60	26	29	7	23	2	1	0	246	0	9.94	3.81	2.61	1.16	24.4	9.3	1.53	.344	4.80	109	3.90	97	9.94	0.7
6	Tomoyuki Sugano T. Sugano	50	2025	BAL	15	5	4	.556	15	3.55	0	0	0	83.2	84	33	34	14	17	4	0	1	348	1	5.38	1.83	2.94	1.51	14.4	4.9	1.21	.266	3.66	91	4.79	120	9.04	-7.7
7	Jacob Lopez J. Lopez	49	2025	ATH	10	1	4	.200	6	4.25	0	0	0	36.0	36	17	20	6	16	6	1	0	165	0	12.25	4.00	3.06	1.50	29.7	9.7	1.44	.341	5.00	107	4.33	107	9.00	-1.1
8	Jack Leiter J. Leiter	49	2025	TEX	12	4	4	.500	12	4.40	0	0	0	61.1	49	30	30	9	30	2	0	0	259	5	7.19	4.40	1.63	1.32	18.9	11.6	1.29	.237	4.40	110	4.93	119	7.19	-5.2
9	Ben Casparius B. Casparius	48	2025	LAD	23	5	1	.833	2	3.02	0	0	0	47.2	39	16	16	2	10	0	2	0	192	0	9.06	1.89	4.80	0.38	25.0	5.2	1.03	.280	3.02	76	2.22	54	7.36	9.7
10	Chase Dollander C. Dollander	48	2025	COL	12	2	7	.222	12	6.19	0	0	0	56.2	59	39	43	14	25	2	0	0	252	1	7.62	3.97	1.92	2.22	19.0	9.9	1.48	.276	6.83	135	6.00	143	9.37	-10.7
11	Ronny Henriquez R. Henriquez	47	2025	MIA	32	3	1	.750	0	3.09	0	0	1	35.0	31	12	15	6	16	3	3	2	155	1	12.09	4.11	2.94	1.54	30.3	10.3	1.34	.301	3.86	74	4.23	106	7.97	-0.9
12	Brad Lord B. Lord	45	2025	WSH	26	1	5	.167	6	3.68	0	0	0	51.1	51	21	22	5	20	2	2	0	221	0	7.89	3.51	2.25	0.88	20.4	9.0	1.38	.309	3.86	91	3.86	96	8.94	1
13	Hunter Dobbins H. Dobbins	43	2025	BOS	12	4	1	.800	10	4.10	0	0	0	59.1	59	27	29	6	16	2	0	1	248	0	6.52	2.43	2.69	0.91	17.3	6.5	1.26	.293	4.40	97	3.83	93	8.95	1.8
14	AJ Smith-Shawver	42	2025	ATL	9	3	2	.600	9	3.86	0	0	0	44.1	42	19	20	4	21	1	0	0	192	3	8.53	4.26	2.00	0.81	21.9	10.9	1.42	.306	4.06	94	3.82	98	8.53	0.4
15	Jackson Jobe J. Jobe	39	2025	DET	10	4	1	.800	10	4.22	0	0	0	49.0	46	23	24	7	27	2	0	0	218	1	7.16	4.96	1.44	1.29	17.9	12.4	1.49	.273	4.41	107	5.10	127	8.45	-5.9
16	Brant Hurter B. Hurter	39	2025	DET	23	2	3	.400	4	2.29	0	0	2	39.1	34	10	17	3	13	5	4	3	165	0	8.92	2.97	3.00	0.69	23.6	7.9	1.19	.295	3.89	58	3.44	85	7.78	2.6
17	Lake Bachar L. Bachar	38	2025	MIA	26	3	0	1.000	0	3.72	0	0	0	36.1	25	15	16	3	21	3	5	3	152	0	9.41	5.20	1.81	0.74	25.0	13.8	1.27	.253	3.96	89	4.02	101	6.19	-0.1
18	Brandon Eisert B. Eisert	38	2025	CWS	33	2	1	.667	2	4.55	0	0	2	31.2	35	16	16	4	8	5	7	2	141	1	10.80	2.27	4.75	1.14	27.0	5.7	1.36	.360	4.55	113	3.53	84	9.95	2.3
19	Mike Vasil M. Vasil	38	2025	CWS	21	3	2	.600	3	2.94	0	0	1	49.0	39	16	17	5	27	6	7	3	213	0	6.98	4.96	1.41	0.92	17.8	12.7	1.35	.248	3.12	73	4.85	116	7.16	-3.5
20	Jack Dreyer J. Dreyer	38	2025	LAD	29	2	2	.500	4	2.79	0	0	0	38.2	28	12	13	0	15	0	3	1	157	1	8.84	3.49	2.53	0.00	24.2	9.6	1.11	.269	3.03	70	2.25	55	6.52	7.7
21	Joey Cantillo J. Cantillo	36	2025	CLE	21	1	0	1.000	0	3.81	0	0	1	28.1	25	12	17	5	14	0	10	0	123	2	11.44	4.45	2.57	1.59	29.3	11.4	1.38	.294	5.40	96	4.29	107	7.94	-0.9
22	Mason Fluharty M. Fluharty	35	2025	TOR	33	3	1	.750	0	4.55	0	0	0	31.2	22	16	16	2	12	1	2	1	128	0	9.95	3.41	2.92	0.57	27.3	9.4	1.07	.256	4.55	115	2.90	71	6.25	4.1
23	Mason Montgomery M. Montgomery	34	2025	TBR	33	1	1	.500	0	5.19	0	0	1	26.0	29	15	18	4	11	1	4	0	118	0	11.77	3.81	3.09	1.38	28.8	9.3	1.54	.368	6.23	136	3.83	97	10.04	0.3
24	Noah Cameron N. Cameron	34	2025	KCR	8	2	3	.400	8	2.08	0	0	0	47.2	31	11	11	4	15	0	0	0	185	0	6.42	2.83	2.27	0.76	18.4	8.1	0.97	.205	2.08	50	3.67	90	5.85	2.1
25	Colton Gordon C. Gordon	34	2025	HOU	7	2	1	.667	7	4.54	0	0	0	35.2	44	18	19	8	5	1	0	2	154	1	8.58	1.26	6.80	2.02	22.1	3.2	1.37	.340	4.79	115	4.57	114	11.10	-2.2