Fernando Abad had 5.09 K/9 in 2021.

Interpreted as:

pitchers with 3.7 or higher k/9 allowed in 2021

	NAME	K/9	SEASON	TM	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	Fernando Abad F. Abad	5.09	2021	BAL	16	0	0		0	5.60	10	0	0	0	17.2	23	11	12	1	7	0	4	1	82	0	3.57	1.43	0.51	12.2	8.5	1.70	.344	6.11	127	3.95	87	11.72	1.1
2	Albert Abreu A. Abreu	8.59	2021	NYY	28	2	0	1.000	0	5.15	35	0	0	1	36.2	27	21	21	8	19	3	14	1	156	3	4.66	1.84	1.96	22.4	12.2	1.25	.209	5.15	122	5.89	136	6.63	-6.3
3	Bryan Abreu B. Abreu	9.00	2021	HOU	31	3	3	.500	0	5.75	36	0	0	1	36.0	35	23	26	4	18	3	3	0	161	4	4.50	2.00	1.00	22.4	11.2	1.47	.310	6.50	134	4.36	103	8.75	-0.5
4	Domingo Acevedo D. Acevedo	7.36	2021	OAK	10	0	0		0	3.27	9	0	0	0	11.0	9	4	4	3	4	0	7	0	44	0	3.27	2.25	2.45	20.5	9.1	1.18	.214	3.27	80	6.16	149	7.36	-2.6
5	Jason Adam J. Adam	16.03	2021	CHC	12	1	0	1.000	0	5.91	19	0	0	0	10.2	10	7	7	1	6	3	4	0	50	0	5.06	3.17	0.84	38.0	12.0	1.50	.429	5.91	142	3.35	80	8.44	1
6	Austin Adams A. Adams	12.99	2021	SDP	65	3	2	.600	0	4.10	76	0	0	0	52.2	28	24	28	1	35	24	18	2	241	4	5.98	2.17	0.17	31.5	14.5	1.20	.257	4.78	104	3.88	93	4.78	1.8
7	Miguel Aguilar M. Aguilar	3.86	2021	ARI	9	1	1	.500	0	6.43	3	0	0	0	7.0	6	5	6	0	4	0	2	1	29	0	5.14	0.75	0.00	10.3	13.8	1.43	.273	7.71	153	4.02	98	7.71	0.1
8	R.J. Alaniz	10.13	2021	CIN	3	0	0		0	3.38	3	0	0	0	2.2	1	1	1	1	3	1	0	0	13	0	10.13	1.00	3.38	23.1	23.1	1.50	.000	3.38	77	10.29	231	3.38	-1.6
9	Andrew Albers A. Albers	5.68	2021	MIN	5	1	2	.333	3	7.58	12	0	0	0	19.0	24	16	16	9	9	1	2	1	89	0	4.26	1.33	4.26	13.5	10.1	1.74	.259	7.58	177	9.64	228	11.37	-11.5
10	Sandy Alcantara S. Alcantara	8.80	2021	MIA	33	9	15	.375	33	3.19	201	1	0	0	205.2	171	73	85	21	50	10	0	2	837	6	2.19	4.02	0.92	24.0	6.0	1.07	.270	3.72	76	3.41	82	7.48	17.2
11	Scott Alexander S. Alexander	4.70	2021	LAD	18	0	2	.000	0	2.93	8	0	0	0	15.1	15	5	6	2	4	1	6	1	67	1	2.35	2.00	1.17	11.9	6.0	1.24	.250	3.52	72	4.79	112	8.80	-0.9
12	Tyler Alexander T. Alexander	7.36	2021	DET	41	2	4	.333	15	3.81	87	0	0	0	106.1	106	45	47	16	28	4	7	0	451	2	2.37	3.11	1.35	19.3	6.2	1.26	.285	3.98	88	4.38	104	8.97	-1.9
13	Yency Almonte Y. Almonte	8.87	2021	COL	48	1	3	.250	0	7.55	47	0	0	0	47.2	47	40	42	9	29	4	15	1	217	3	5.48	1.62	1.70	21.7	13.4	1.59	.297	7.93	157	5.72	129	8.87	-6.3
14	Dan Altavilla D. Altavilla	13.50	2021	SDP	2	0	0		0	6.75	2	0	0	0	1.1	1	1	1	1	0	0	1	0	5	0	0.00		6.75	40.0	0.0	0.75	.000	6.75	171	9.91	236	6.75	-0.9
15	José Alvarado J. Alvarado	10.99	2021	PHI	64	7	1	.875	0	4.20	68	0	0	5	55.2	42	26	30	5	47	7	10	5	251	9	7.60	1.45	0.81	27.1	18.7	1.60	.298	4.85	100	4.80	111	6.79	-2.8
16	Jose Alvarez J. Alvarez	5.85	2021	SFG	67	5	2	.714	1	2.37	42	0	0	0	64.2	53	17	23	2	19	0	12	1	266	1	2.64	2.21	0.28	15.8	7.1	1.11	.251	3.20	59	3.15	77	7.38	6.8
17	Adbert Alzolay A. Alzolay	9.17	2021	CHC	29	5	13	.278	21	4.58	128	0	0	1	125.2	112	64	66	25	34	5	1	2	519	2	2.44	3.76	1.79	24.7	6.6	1.16	.266	4.73	110	4.64	111	8.02	-6.3
18	Brett Anderson B. Anderson	5.44	2021	MIL	24	4	9	.308	24	4.22	58	0	0	0	96.0	102	45	52	11	28	2	0	0	409	0	2.63	2.07	1.03	14.2	6.8	1.35	.294	4.88	101	4.38	102	9.56	-1
19	Chase Anderson C. Anderson	6.56	2021	PHI	14	2	4	.333	9	6.75	35	0	0	0	48.0	51	36	36	10	20	3	2	1	215	0	3.75	1.75	1.88	16.3	9.3	1.48	.279	6.75	161	5.85	135	9.56	-7.9
20	Shaun Anderson S. Anderson	7.33	2021	TOT	16	0	0		0	8.49	19	0	0	0	23.1	36	22	30	4	12	2	6	1	124	3	4.63	1.58	1.54	15.3	9.7	2.06	.368	11.57	198	5.56	127	13.89	-2.9
21	Tyler Anderson T. Anderson	7.22	2021	TOT	31	7	11	.389	31	4.53	134	0	0	0	167.0	170	84	87	27	38	1	0	2	703	1	2.05	3.53	1.46	19.1	5.4	1.25	.284	4.69	108	4.36	104	9.16	-3
22	Matt Andriese M. Andriese	9.31	2021	TOT	34	2	3	.400	0	5.21	50	0	0	1	48.1	65	28	35	7	13	4	13	0	222	0	2.42	3.85	1.30	22.5	5.9	1.61	.392	6.52	115	4.03	94	12.10	1.4
23	Tejay Antone T. Antone	11.23	2021	CIN	23	2	0	1.000	0	2.14	42	0	0	3	33.2	17	8	8	3	13	3	4	0	128	1	3.48	3.23	0.80	32.8	10.2	0.89	.209	2.14	49	3.25	73	4.54	4.3
24	Chris Archer C. Archer	9.78	2021	TBR	6	1	1	.500	5	4.66	21	0	0	0	19.1	18	10	11	3	8	0	0	0	83	1	3.72	2.63	1.40	25.3	9.6	1.34	.294	5.12	113	4.25	103	8.38	-0.4
25	Shawn Armstrong S. Armstrong	11.00	2021	TOT	31	1	0	1.000	0	6.75	44	0	0	0	36.0	39	27	28	10	15	2	11	0	165	0	3.75	2.93	2.50	26.7	9.1	1.50	.309	7.00	157	5.75	132	9.75	-5.5