most strikeouts by a pitcher on their mlb debut game

Garrett Crochet struck out the most hitters in 2025, with 255 strikeouts.

Interpreted as:

most strikeouts by a pitcher on their MLB debut game 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	Garrett Crochet G. Crochet	255	2025	BOS	32	18	5	.783	32	2.59	1	1	0	205.1	165	59	62	24	46	3	0	0	814	7	11.18	2.02	5.54	1.05	31.3	5.7	1.03	.290	2.72	60	2.88	68	7.23	30.2
2	Tarik Skubal T. Skubal	241	2025	DET	31	13	6	.684	31	2.21	1	1	0	195.1	141	48	55	18	33	5	0	0	748	3	11.10	1.52	7.30	0.83	32.2	4.4	0.89	.273	2.53	55	2.44	59	6.50	36.9
3	Logan Webb L. Webb	224	2025	SFG	34	15	11	.577	34	3.22	0	0	0	207.0	210	74	82	14	46	6	0	0	856	2	9.74	2.00	4.87	0.61	26.2	5.4	1.24	.346	3.57	79	2.60	65	9.13	32.5
4	Jesús Luzardo J. Luzardo	216	2025	PHI	32	15	7	.682	32	3.92	0	0	0	183.2	167	80	85	16	57	3	0	0	758	2	10.58	2.79	3.79	0.78	28.5	7.5	1.22	.324	4.17	93	2.89	69	8.18	26.7
5	Paul Skenes P. Skenes	216	2025	PIT	32	10	10	.500	32	1.97	1	0	0	187.2	136	41	45	11	42	6	0	0	733	2	10.36	2.01	5.14	0.53	29.5	5.7	0.95	.273	2.16	46	2.36	57	6.52	37
6	Dylan Cease D. Cease	215	2025	SDP	32	8	12	.400	32	4.55	0	0	0	168.0	152	85	91	21	71	5	0	2	722	5	11.52	3.80	3.03	1.13	29.8	9.8	1.33	.320	4.88	113	3.55	87	8.14	10.1
7	Cristopher Sánchez C. Sánchez	212	2025	PHI	32	13	5	.722	32	2.50	1	0	0	202.0	171	56	58	12	44	6	0	0	807	6	9.45	1.96	4.82	0.53	26.3	5.5	1.06	.298	2.58	59	2.54	60	7.62	36.9
8	Hunter Brown H. Brown	206	2025	HOU	31	12	9	.571	31	2.43	1	0	0	185.1	133	50	55	17	57	7	0	1	729	0	10.00	2.77	3.61	0.83	28.3	7.8	1.03	.262	2.67	60	3.13	76	6.46	20.6
9	Freddy Peralta F. Peralta	204	2025	MIL	33	17	6	.739	33	2.70	0	0	0	176.2	124	53	54	21	66	9	0	0	723	4	10.39	3.36	3.09	1.07	28.2	9.1	1.08	.243	2.75	64	3.64	87	6.32	10.5
10	Carlos Rodón C. Rodón	203	2025	NYY	33	18	9	.667	33	3.09	0	0	0	195.1	132	67	74	22	73	9	0	0	789	4	9.35	3.36	2.78	1.01	25.7	9.3	1.05	.228	3.41	76	3.77	88	6.08	11.3
11	Sonny Gray S. Gray	201	2025	STL	32	14	8	.636	32	4.28	1	1	0	180.2	185	86	93	25	38	3	0	0	753	2	10.01	1.89	5.29	1.25	26.7	5.0	1.23	.329	4.63	104	3.38	84	9.22	13.5
12	Yoshinobu Yamamoto Y. Yamamoto	201	2025	LAD	30	12	8	.600	30	2.49	0	0	0	173.2	113	48	53	14	59	3	0	0	684	5	10.42	3.06	3.41	0.73	29.4	8.6	0.99	.243	2.75	60	2.93	70	5.86	24.4
13	Bryan Woo B. Woo	198	2025	SEA	30	15	7	.682	30	2.94	0	0	0	186.2	137	61	64	26	36	4	0	0	731	3	9.55	1.74	5.50	1.25	27.1	4.9	0.93	.238	3.09	77	3.46	86	6.61	11.4
14	Zack Wheeler Z. Wheeler	195	2025	PHI	24	10	5	.667	24	2.71	1	0	0	149.2	107	45	48	19	33	8	0	0	585	2	11.73	1.98	5.91	1.14	33.3	5.6	0.94	.267	2.89	64	2.99	71	6.43	20
15	Joe Ryan J. Ryan	194	2025	MIN	31	13	10	.565	30	3.42	0	0	0	171.0	138	65	69	26	39	12	0	0	689	0	10.21	2.05	4.97	1.37	28.2	5.7	1.04	.268	3.63	84	3.73	89	7.26	8.4
16	Nick Pivetta N. Pivetta	190	2025	SDP	31	13	5	.722	31	2.87	0	0	0	181.2	129	58	63	22	50	3	0	1	721	1	9.41	2.48	3.80	1.09	26.4	6.9	0.99	.235	3.12	71	3.49	85	6.39	12.2
17	Max Fried M. Fried	189	2025	NYY	32	19	5	.792	32	2.86	0	0	0	195.1	164	62	73	14	51	10	0	0	801	8	8.71	2.35	3.71	0.65	23.6	6.4	1.10	.279	3.36	70	3.06	71	7.56	26.2
18	Kevin Gausman K. Gausman	189	2025	TOR	32	10	11	.476	32	3.59	1	1	0	193.0	155	77	79	21	50	3	0	2	775	1	8.81	2.33	3.78	0.98	24.4	6.5	1.06	.262	3.68	89	3.41	82	7.23	16.4
19	Jack Flaherty J. Flaherty	188	2025	DET	31	8	15	.348	31	4.64	0	0	0	161.0	147	83	85	23	59	5	0	1	681	4	10.51	3.30	3.19	1.29	27.6	8.7	1.28	.305	4.75	115	3.84	93	8.22	5.1
20	Framber Valdez F. Valdez	187	2025	HOU	31	13	11	.542	31	3.66	2	0	0	192.0	171	78	82	15	68	7	0	0	802	12	8.77	3.19	2.75	0.70	23.3	8.5	1.24	.297	3.84	90	3.37	82	8.02	16.3
21	Robbie Ray R. Ray	186	2025	SFG	32	11	8	.579	32	3.65	1	0	0	182.1	148	74	81	22	73	4	0	0	755	7	9.18	3.60	2.55	1.09	24.6	9.7	1.21	.268	4.00	89	3.92	99	7.31	0.6
22	Jacob deGrom J. deGrom	185	2025	TEX	30	12	8	.600	30	2.97	0	0	0	172.2	122	57	57	26	37	3	0	0	669	3	9.64	1.93	5.00	1.36	27.7	5.5	0.92	.230	2.97	73	3.64	86	6.36	11.7
23	MacKenzie Gore M. Gore	185	2025	WSH	30	5	15	.250	30	4.17	0	0	0	159.2	152	74	75	20	64	5	0	0	680	12	10.43	3.61	2.89	1.13	27.2	9.4	1.35	.325	4.23	100	3.74	90	8.57	7.7
24	Shane Baz S. Baz	176	2025	TBR	31	10	12	.455	31	4.87	0	0	0	166.1	158	90	91	26	64	9	0	0	711	3	9.52	3.46	2.75	1.41	24.8	9.0	1.33	.303	4.92	124	4.36	108	8.55	-6.2
25	Zac Gallen Z. Gallen	175	2025	AZ	33	13	15	.464	33	4.83	0	0	0	192.0	176	103	109	31	66	4	0	1	813	2	8.20	3.09	2.65	1.45	21.5	8.1	1.26	.270	5.11	113	4.50	112	8.25	-11