Left fielders had their highest K/9 in a season in 1998 and in 1986, with 27.00 per nine innings.

Interpreted as:

highest pitcher k/9 in a regular season

	POSITION	K/9	SEASON	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Left Fielder	27.00	1998	1	0	0		0	9.00	3	0	0	0	1.0	1	1	1	0	2	1	1	0	7	0	18.00	1.50	0.00	42.9	28.6	3.00	1.000	9.00	190	6.13	134	9.00	-0.2
2	Left Fielder	27.00	1986	1	0	0		0	0.00	2	0	0	0	0.2	1	0	0	0	1	0	1	0	4	0	13.50	2.00	0.00	50.0	25.0	3.00	1.000	0.00	0	1.26	34	13.50	0.2
3	First Baseman	20.25	1977	1	0	0		0	40.50	3	0	0	0	1.1	5	6	6	3	1	0	1	0	10	0	6.75	3.00	20.25	30.0	10.0	4.50	.667	40.50	942	29.73	711	33.75	-3.5
4	Left Fielder	18.00	1979	1	0	0		0	0.00	2	0	0	0	1.0	2	0	0	0	0	0	1	0	5	0	0.00		0.00	40.0	0.0	2.00	.667	0.00	0	-1.28	-33	18.00	0.6
5	First Baseman	18.00	1932	1	0	0		0	0.00	2	0	0	0	1.0	1	0	0	0	0	0	1		4	0	0.00		0.00	50.0	0.0	1.00	.500	0.00	0	-0.98	-25	9.00	0.6
6	First Baseman	18.00	1920	1	0	0		0	0.00	2	0	0	1	1.0	0	0	0	0	0	0	1		4	0	0.00		0.00	50.0	0.0	0.00	.000	0.00	0	-1.25	-33	0.00	0.5
7	Second Baseman	13.50	2001	2	0	0		0	0.00	3	0	0	0	2.0	1	0	0	0	1	0	2	0	8	0	4.50	3.00	0.00	37.5	12.5	1.00	.250	0.00	0	1.54	35	4.50	0.6
8	First Baseman	13.50	1999	2	0	0		0	13.50	2	0	0	0	1.1	3	2	2	1	3	0	2	0	10	0	20.25	0.67	6.75	20.0	30.0	4.50	.500	13.50	308	16.62	371	20.25	-1.9
9	Center Fielder	13.50	1978	1	0	0		0	67.50	1	0	0	0	0.2	2	5	5	1	4	0	0	0	8	1	54.00	0.25	13.50	12.5	50.0	9.00	.500	67.50	1888	37.07	996	27.00	-2.5
10	Left Fielder	13.50	1965	1	0	0		0	0.00	3	0	0	0	2.0	3	0	0	0	1	0	1	0	10	0	4.50	3.00	0.00	30.0	10.0	2.00	.500	0.00	0	1.02	30	13.50	0.5
11	Catcher	13.50	1876	2	0	1	.000	1	9.00	3	0	0	1	2.0	3	2	2	1	0		1		9	0	0.00		4.50	33.3	0.0	1.50		9.00	0	-0.77	-32	13.50	0.7
12	Designated Hitter	11.76	2022	31	15	9	.625	28	2.51	220	0	0	0	168.1	128	47	49	16	45	3	3	0	672	14	2.41	4.89	0.86	32.7	6.7	1.03	.289	2.62	64	2.58	64	6.84	26.3
13	Designated Hitter	11.64	2025	9	0	0		8	2.33	25	0	0	0	19.1	17	5	5	1	6	0	1	0	80	4	2.79	4.17	0.47	31.3	7.5	1.19	.333	2.33	57	2.12	51	7.91	4.3
14	Right Fielder	11.57	1966	7	0	0		0	6.43	9	0	0	1	7.0	11	5	5	0	6	0	4	0	37	0	7.71	1.50	0.00	24.3	16.2	2.43	.500	6.43	167	2.55	68	14.14	0.9
15	Designated Hitter	10.97	2023	27	10	5	.667	23	3.55	167	1	1	0	137.0	93	54	58	22	59	11	4	0	556	12	3.88	2.83	1.45	30.0	10.6	1.11	.239	3.81	82	4.43	101	6.11	-0.6
16	Designated Hitter	10.68	2021	25	9	2	.818	23	3.20	157	0	0	0	132.1	102	47	49	15	46	10	1	2	544	10	3.13	3.41	1.02	28.9	8.5	1.12	.275	3.33	73	3.53	81	6.94	12.1
17	Designated Hitter	10.51	2018	14	4	2	.667	10	3.07	65	0	0	0	55.2	39	19	19	6	24	1	4	0	226	5	3.88	2.71	0.97	28.8	10.6	1.13	.254	3.07	73	3.57	84	6.31	4.3
18	Pitcher	9.08	2020	7,925	898	897	.500	1,794	4.44	15,579	29	12	422	15438.0	14,393	7,621	8,311	2,293	6,075	818	1,736	202	66,350	672	3.54	2.56	1.34	23.5	9.2	1.33	.291	4.85	100	4.43	100	8.39	18.8
19	Third Baseman	9.00	2017	4	0	0		0	3.00	3	0	0	0	3.0	3	1	1	1	1	0	4	0	13	0	3.00	3.00	3.00	23.1	7.7	1.33	.250	3.00	69	6.48	148	9.00	-0.7
20	Center Fielder	9.00	2015	1	0	0		0	0.00	1	0	0	0	1.0	1	0	0	0	0	1	0	0	5	1	0.00		0.00	20.0	0.0	1.00	.333	0.00	0	4.13	100	9.00	0
21	Right Fielder	9.00	2014	1	0	0		0	18.00	1	0	0	0	1.0	1	2	2	0	2	0	1	0	6	0	18.00	0.50	0.00	16.7	33.3	3.00	.333	18.00	512	7.13	199	9.00	-0.4
22	Designated Hitter	9.00	2012	1	1	0	1.000	0	0.00	2	0	0	0	2.0	2	0	0	0	1	0	1	0	8	0	4.50	2.00	0.00	25.0	12.5	1.50	.400	0.00	0	2.59	60	9.00	0.4
23	Second Baseman	9.00	2011	2	1	0	1.000	0	9.00	2	0	0	0	2.0	1	2	2	1	1	1	2	0	9	0	4.50	2.00	4.50	22.2	11.1	1.00	.000	9.00	243	10.52	279	4.50	-1.5
24	Catcher	9.00	2009	1	0	0		0	9.00	1	0	0	0	1.0	2	1	1	0	0	0	1	0	5	0	0.00		0.00	20.0	0.0	2.00	.500	9.00	193	1.09	25	18.00	0.4
25	Shortstop	9.00	2008	1	0	0		0	0.00	1	0	0	0	1.0	0	0	0	0	0	0	1	0	3	0	0.00		0.00	33.3	0.0	0.00	.000	0.00	0	1.12	26	0.00	0.4