Warren Spahn fanned his most hitters in a game versus the Cubs on June 14, 1952, with 18 strikeouts.

Interpreted as:

Warren Spahn most strikeouts in a regular-season game

	NAME	SO	DATE	TM		OPP	DEC	GS	ERA	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP
1	Warren Spahn W. Spahn	18	6/14/1952	BSN	vs	CHC	L	1	1.80	1	0	0	15.0	10	3	3	1	2	0	0	1	57	0
2	Warren Spahn W. Spahn	15	9/16/1960	MIL	vs	PHI	W	1	0.00	1	1	0	9.0	0	0	0	0	2	0	0	0	29	0
3	Warren Spahn W. Spahn	13	5/4/1954	MIL	vs	PIT	W	1	1.00	1	0	0	9.0	6	1	1	0	3	0	0		35	0
4	Warren Spahn W. Spahn	13	9/13/1952	BSN	vs	PIT	W	1	0.00	1	1	0	9.0	7	0	0	0	4	0	0	0	37	0
5	Warren Spahn W. Spahn	12	6/23/1953	MIL	vs	PIT	L	1	1.00	1	0	0	9.0	2	1	1	0	3	0	0		32	1
6	Warren Spahn W. Spahn	11	8/26/1960	MIL	@	SFG	W	1	2.00	1	0	0	9.0	8	2	2	1	2	0	0	0	37	0
7	Warren Spahn W. Spahn	11	7/20/1958	MIL	@	CHC	W	1	2.00	1	0	0	9.0	5	2	2	2	0	0	0	0	32	0
8	Warren Spahn W. Spahn	11	4/21/1954	MIL	vs	CHC	W	1	3.00	1	0	0	9.0	8	3	3	1	3	0	0	1	37	0
9	Warren Spahn W. Spahn	11	6/18/1952	BSN	vs	CIN	L	1	3.00	1	0	0	9.0	7	3	3	0	0	0	0	0	35	0
10	Warren Spahn W. Spahn	11	4/29/1952	BSN	@	PIT	W	1	0.00	1	0	0	9.0	5	0	1	0	5	0	0	0	36	0
11	Warren Spahn W. Spahn	11	8/27/1951	BSN	vs	SLN	W	1	3.00	1	0	0	9.0	6	3	3	0	3	0	0	0	36	1
12	Warren Spahn W. Spahn	11	9/10/1949	BSN	vs	PHN	W	1	0.00	1	1	0	9.0	6	0	0	0	4	0	0		37	0
13	Warren Spahn W. Spahn	10	7/7/1960	MIL	vs	PHI	W	1	0.00	1	1	0	9.0	5	0	0	0	1	0	0	0	32	0
14	Warren Spahn W. Spahn	10	6/14/1956	MIL	vs	NYG	W	1	2.00	1	0	0	9.0	7	2	2	1	1	0	0	0	36	1
15	Warren Spahn W. Spahn	10	5/8/1956	MIL	vs	PIT	W	1	0.00	1	1	0	9.0	3	0	0	0	1	0	0	0	31	0
16	Warren Spahn W. Spahn	10	8/9/1952	BSN	vs	NYG	W	1	0.00	1	1	0	9.0	3	0	0	0	1	0	0	0	31	0
17	Warren Spahn W. Spahn	10	7/2/1952	BSN	vs	NYG	W	1	0.00	1	0	0	9.0	5	0	1	0	2	0	0	2	34	0
18	Warren Spahn W. Spahn	10	6/7/1950	BSN	@	SLN	W	1	2.00	1	0	0	9.0	8	2	2	0	2	0	0	0	37	0
19	Warren Spahn W. Spahn	9	8/13/1965	SFG	vs	PHI	L	1	0.00	0	0	0	6.0	6	0	3	0	4	0	0	0	29	0
20	Warren Spahn W. Spahn	9	5/3/1961	MIL	vs	LAD	W	1	1.00	1	0	0	9.0	2	1	1	0	2	0	0	0	31	0
21	Warren Spahn W. Spahn	9	7/17/1953	MIL	@	PIT	W	1	0.00	1	0	0	9.0	4	0	2	0	2	0	0		34	0
22	Warren Spahn W. Spahn	9	9/1/1951	BSN	@	PHN	W	1	3.00	1	0	0	9.0	9	3	4	1	2	0	0	0	38	0
23	Warren Spahn W. Spahn	9	7/18/1950	BSN	@	PIT	W	1	3.00	1	0	0	9.0	6	3	3	1	6	0	0	0	39	0
24	Warren Spahn W. Spahn	9	6/23/1950	BSN	vs	SLN	W	1	3.00	1	0	0	9.0	6	3	3	1	6	0	0	0	36	0
25	Warren Spahn W. Spahn	9	6/19/1950	BSN	vs	PIT	L	1	0.00	1	0	0	9.0	5	0	1	0	1	0	0	0	32	0