fewest pitching wins with 15+ decisions and 21+ games started in a single season

Jack Nabors has the fewest wins with 15+ decisions and with 21+ starts in a season, with 1 win in 1916.

Interpreted as:

fewest pitching wins by a player with 15+ decisions and 21+ games started in a single season

	NAME	W	DEC	GS	SEASON	TM	L	W%	G	ERA	SO	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	Jack Nabors J. Nabors	1	21	30	1916	PHA	20	.048	40	3.47	74	11	0	1	212.2	206	82	110	2	95	3	8		871	4	3.13	4.02	0.78	0.08	8.5	10.9	1.42	.293	4.66	123	3.12	111	8.72	-7.3
2	Zack Greinke Z. Greinke	2	17	27	2023	KCR	15	.118	30	5.06	97	0	0	0	142.1	158	80	82	25	23	4	0	0	593	2	6.13	1.45	4.22	1.58	16.4	3.9	1.27	.300	5.19	113	4.74	111	9.99	-7.3
3	Jim Abbott J. Abbott	2	20	23	1996	CAL	18	.100	27	7.48	58	1	0	0	142.0	171	118	128	23	78	4	2	3	654	13	3.68	4.94	0.74	1.46	8.9	11.9	1.75	.301	8.11	150	6.18	125	10.84	-19
4	Jose DeLeon J. DeLeon	2	21	25	1985	PIT	19	.095	31	4.70	149	1	0	3	162.2	138	85	93	15	89	3	5	3	700	7	8.24	4.92	1.67	0.83	21.3	12.7	1.40	.277	5.15	130	3.74	101	7.64	-0.8
5	Rick Waits R. Waits	2	15	21	1982	CLE	13	.133	25	5.40	44	2	0	0	115.0	128	69	74	13	57	1	0	2	510	4	3.44	4.46	0.77	1.02	8.6	11.2	1.61	.291	5.79	130	4.93	119	10.02	-9.9
6	Matt Keough M. Keough	2	19	28	1979	OAK	17	.105	30	5.04	95	7	1	0	176.2	220	99	115	18	78	7	2	2	800	13	4.84	3.97	1.22	0.92	11.9	9.8	1.69	.336	5.86	126	4.41	105	11.21	-4.5
7	Ken Reynolds K. Reynolds	2	17	23	1972	PHI	15	.118	33	4.26	87	2	0	0	154.1	149	73	76	17	60	1	1	6	652	1	5.07	3.50	1.45	0.99	13.3	9.2	1.35	.271	4.43	120	3.88	113	8.69	-7.5
8	Joe Harris J. Harris	2	23	24	1906	BSA	21	.087	30	3.52	99	20	1	2	235.0	211	92	130	5	67	7	6		942	6	3.79	2.57	1.48	0.19	10.5	7.1	1.18	.270	4.98	131	2.75	106	8.08	-4.3
9	Chris Flexen C. Flexen	3	18	30	2024	CWS	15	.167	33	4.95	123	0	0	0	160.0	180	88	95	24	63	2	0	1	707	4	6.92	3.54	1.95	1.35	17.4	8.9	1.52	.315	5.34	122	4.79	114	10.13	-9.8
10	JT Brubaker	3	15	28	2022	PIT	12	.200	28	4.69	147	0	0	0	144.0	157	75	85	17	54	9	0	0	646	6	9.19	3.38	2.72	1.06	22.8	8.4	1.47	.334	5.31	115	3.91	98	9.81	1.2
11	Zach Plesac Z. Plesac	3	15	24	2022	CLE	12	.200	25	4.31	100	0	0	0	131.2	136	63	74	19	38	5	0	0	568	4	6.84	2.60	2.63	1.30	17.6	6.7	1.32	.288	5.06	113	4.44	115	9.30	-8.8
12	Kris Bubic K. Bubic	3	16	27	2022	KCR	13	.188	28	5.58	110	0	0	0	129.0	156	80	87	18	63	4	1	0	587	4	7.67	4.40	1.75	1.26	18.7	10.7	1.70	.352	6.07	138	4.77	122	10.88	-12.7
13	Jorge López J. López	3	17	25	2021	BAL	14	.176	33	6.07	112	0	0	0	121.2	142	82	83	21	56	10	2	2	555	9	8.28	4.14	2.00	1.55	20.2	10.1	1.63	.340	6.14	138	5.19	115	10.50	-8.1
14	Jhoulys Chacin J. Chacin	3	15	24	2019	TOT	12	.200	25	6.01	101	0	0	0	103.1	115	69	73	25	46	5	0	1	470	3	8.80	4.01	2.20	2.18	21.5	9.8	1.56	.307	6.36	134	5.87	132	10.02	-16.5
15	Tyler Mahle T. Mahle	3	15	25	2019	CIN	12	.200	25	5.14	129	0	0	0	129.2	136	74	82	25	34	6	0	0	556	2	8.95	2.36	3.79	1.74	23.2	6.1	1.31	.307	5.69	112	4.64	101	9.44	-0.4
16	Daniel Norris D. Norris	3	16	29	2019	DET	13	.188	32	4.49	125	0	0	0	144.1	154	72	75	25	38	4	0	0	610	5	7.79	2.37	3.29	1.56	20.5	6.2	1.33	.309	4.68	98	4.60	101	9.60	-0.5
17	Spencer Turnbull S. Turnbull	3	20	30	2019	DET	17	.150	30	4.61	146	0	0	0	148.1	154	76	86	14	59	16	0	1	656	9	8.86	3.58	2.47	0.85	22.3	9.0	1.44	.333	5.22	100	3.98	87	9.34	9.7
18	Michael Fulmer M. Fulmer	3	15	24	2018	DET	12	.200	24	4.69	110	0	0	0	132.1	128	69	75	19	46	5	0	1	558	1	7.48	3.13	2.39	1.29	19.7	8.2	1.31	.288	5.10	108	4.52	105	8.71	-2.8
19	Mike Pelfrey M. Pelfrey	3	15	21	2017	CWS	12	.200	34	5.93	79	0	0	0	120.0	127	79	87	25	62	10	4	4	546	1	5.93	4.65	1.27	1.88	14.5	11.4	1.58	.276	6.53	138	6.34	143	9.53	-25.2
20	Chris Volstad C. Volstad	3	15	21	2012	CHC	12	.200	21	6.31	61	0	0	0	111.1	137	78	81	16	43	3	0	4	507	2	4.93	3.48	1.42	1.29	12.0	8.5	1.62	.315	6.55	157	5.10	131	11.07	-14.8
21	Oliver Perez O. Perez	3	16	22	2006	TOT	13	.188	22	6.55	102	1	1	0	112.2	129	82	90	20	68	6	0	0	529	5	8.15	5.43	1.50	1.60	19.3	12.9	1.75	.327	7.19	149	5.61	126	10.30	-14.9
22	Jae Weong Seo J. Weong Seo	3	15	26	2006	TOT	12	.200	36	5.33	88	0	0	0	157.0	197	93	101	31	56	4	5	4	707	5	5.04	3.21	1.57	1.78	12.4	7.9	1.61	.314	5.79	120	5.73	127	11.29	-21.6
23	Joe Kennedy J. Kennedy	3	15	22	2003	TBD	12	.200	32	6.13	77	1	1	1	133.2	167	91	101	19	47	11	7	1	619	3	5.18	3.16	1.64	1.28	12.4	7.6	1.60	.318	6.80	137	5.02	114	11.24	-9.2
24	Bryan Rekar B. Rekar	3	16	25	2001	TBD	13	.188	25	5.89	87	0	0	0	140.2	167	92	104	21	45	6	0	2	630	6	5.57	2.88	1.93	1.34	13.8	7.1	1.51	.310	6.65	132	4.83	110	10.68	-7.2
25	Steve Karsay S. Karsay	3	15	24	1997	OAK	12	.200	24	5.77	92	0	0	0	132.2	166	85	92	20	47	9	0	3	609	7	6.24	3.19	1.96	1.36	15.1	7.7	1.61	.331	6.24	129	4.94	110	11.26	-6.9