Randy Johnson struck out his most batters in a game versus the Reds on May 8, 2001, with 20 strikeouts.

Interpreted as:

Randy Johnson most so 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	Randy Johnson R. Johnson	20	5/8/2001	ARI	vs	CIN		1	1.00	0	0	0	9.0	3	1	1	0	0	0	0	0	29	0
2	Randy Johnson R. Johnson	19	8/8/1997	SEA	vs	CWS	W	1	0.00	1	1	0	9.0	5	0	0	0	3	0	0	0	35	0
3	Randy Johnson R. Johnson	19	6/24/1997	SEA	vs	OAK	L	1	4.00	1	0	0	9.0	11	4	4	2	0	0	0	0	37	0
4	Randy Johnson R. Johnson	18	9/27/1992	SEA	@	TEX		1	2.25	0	0	0	8.0	6	2	2	0	4	0	0	0	34	0
5	Randy Johnson R. Johnson	17	9/14/2002	ARI	vs	MIL	W	1	0.00	1	1	0	9.0	3	0	0	0	2	0	0	0	32	0
6	Randy Johnson R. Johnson	17	4/21/2002	ARI	vs	COL	W	1	0.00	1	0	0	9.0	2	0	1	0	1	0	0	0	31	0
7	Randy Johnson R. Johnson	17	6/30/1999	ARI	@	CIN	L	1	2.25	1	0	0	8.0	7	2	2	1	0	0	0	0	30	0
8	Randy Johnson R. Johnson	16	8/25/2002	ARI	vs	CHC	W	1	0.00	1	1	0	9.0	6	0	0	0	2	0	0	0	35	0
9	Randy Johnson R. Johnson	16	9/27/2001	ARI	vs	MIL	W	1	6.75	0	0	0	6.2	7	5	5	1	2	0	0	0	30	1
10	Randy Johnson R. Johnson	16	8/23/2001	ARI	@	PIT	L	1	5.14	0	0	0	7.0	5	4	4	1	2	0	0	0	28	0
11	Randy Johnson R. Johnson	16	7/18/2001	ARI	@	SDP	W	0	0.00	0	0	0	7.0	1	0	0	0	1	0	1	0	23	0
12	Randy Johnson R. Johnson	16	8/28/1998	HOU	vs	PIT	W	1	0.00	1	1	0	9.0	7	0	0	0	0	0	0	0	34	0
13	Randy Johnson R. Johnson	16	7/18/1997	SEA	vs	KCR	W	1	4.00	1	0	0	9.0	9	4	4	1	3	0	0	0	39	0
14	Randy Johnson R. Johnson	16	7/15/1995	SEA	vs	TOR	W	1	0.00	1	1	0	9.0	3	0	0	0	2	0	0	0	31	0
15	Randy Johnson R. Johnson	15	8/31/2004	ARI	vs	LAD		1	1.13	0	0	0	8.0	3	1	1	1	1	0	0	0	27	0
16	Randy Johnson R. Johnson	15	7/31/2002	ARI	@	MON	W	1	1.00	1	0	0	9.0	8	1	1	0	3	0	0	0	38	0
17	Randy Johnson R. Johnson	15	4/10/1999	ARI	@	ATL	W	1	3.00	1	0	0	9.0	6	3	3	2	2	0	0	0	34	0
18	Randy Johnson R. Johnson	15	7/11/1998	SEA	vs	ANA	W	1	0.00	1	1	0	9.0	5	0	0	0	2	0	0	0	34	0
19	Randy Johnson R. Johnson	15	5/24/1998	SEA	vs	TBD	W	1	1.00	1	0	0	9.0	7	1	1	0	2	0	0	0	36	0
20	Randy Johnson R. Johnson	15	4/10/1998	SEA	@	BOS		1	2.25	0	0	0	8.0	2	2	2	1	3	3	0	0	32	0
21	Randy Johnson R. Johnson	15	6/8/1997	SEA	@	DET	W	1	0.00	0	0	0	8.0	1	0	0	0	3	0	0	0	27	0
22	Randy Johnson R. Johnson	15	5/28/1997	SEA	vs	TEX	W	1	0.00	0	0	0	8.0	4	0	0	0	1	0	0	0	28	0
23	Randy Johnson R. Johnson	15	9/23/1995	SEA	vs	OAK	W	1	0.00	0	0	0	7.1	4	0	0	0	3	0	0	0	30	0
24	Randy Johnson R. Johnson	15	6/24/1995	SEA	vs	CAL	W	1	2.00	1	0	0	9.0	5	2	2	0	3	0	0	0	35	0
25	Randy Johnson R. Johnson	15	8/11/1994	SEA	@	OAK	W	1	1.00	1	0	0	9.0	4	1	1	0	1	1	0	0	32	0