Since January 1, 2021, Zack Wheeler has the most quality starts, with 99.

Interpreted as:

most regular-season quality starts by a player since 1/1/21

	NAME	QS	G	W	L	W%	GS	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	H/9
1	Zack Wheeler Z. Wheeler	99	145	65	35	.650	145	2.90	1,035	4	2	0	903.0	704	291	314	87	202	40	0	2	3,595	17	10.32	2.01	5.12	0.87	28.8	5.6	1.00	.277	3.13	7.02
2	Logan Webb L. Webb	93	150	59	42	.584	149	3.21	855	3	2	0	915.0	863	326	356	62	201	26	0	3	3,716	15	8.41	1.98	4.25	0.61	23.0	5.4	1.16	.311	3.50	8.49
3	Framber Valdez F. Valdez	92	135	66	35	.653	135	3.06	833	9	3	0	856.0	702	291	319	63	286	44	0	1	3,505	42	8.76	3.01	2.91	0.66	23.8	8.2	1.15	.280	3.35	7.38
4	Corbin Burnes C. Burnes	87	136	51	32	.614	136	2.91	921	0	0	0	821.1	622	266	296	81	225	32	0	1	3,287	33	10.09	2.47	4.09	0.89	28.0	6.8	1.03	.267	3.24	6.82
5	Luis Castillo L. Castillo	85	145	48	49	.495	145	3.46	873	0	0	0	848.2	744	326	358	100	260	31	0	6	3,512	6	9.26	2.76	3.36	1.06	24.9	7.4	1.18	.286	3.80	7.89
6	Kevin Gausman K. Gausman	85	150	60	45	.571	150	3.36	969	2	1	0	875.1	776	327	358	93	229	13	0	3	3,593	15	9.96	2.35	4.23	0.96	27.0	6.4	1.15	.298	3.68	7.98
7	José Berríos J. Berríos	83	153	60	43	.583	153	3.93	809	2	0	0	888.0	829	388	411	127	245	54	0	6	3,692	12	8.20	2.48	3.30	1.29	21.9	6.6	1.21	.286	4.17	8.40
8	Chris Bassitt C. Bassitt	78	146	64	41	.610	145	3.68	808	3	2	0	843.2	784	345	370	100	252	63	0	5	3,544	19	8.62	2.69	3.21	1.07	22.8	7.1	1.23	.295	3.95	8.36
9	Max Fried M. Fried	77	125	59	30	.663	125	2.88	709	5	4	0	747.0	633	239	269	58	184	29	0	2	3,018	32	8.54	2.22	3.85	0.70	23.5	6.1	1.09	.282	3.24	7.63
10	Gerrit Cole G. Cole	71	113	52	25	.675	113	3.15	821	4	3	0	686.0	540	240	252	88	168	17	0	2	2,730	11	10.77	2.20	4.89	1.15	30.1	6.2	1.03	.276	3.31	7.08
11	Zac Gallen Z. Gallen	68	141	56	40	.583	141	3.75	838	2	2	0	807.1	693	336	356	93	249	30	0	2	3,325	25	9.34	2.78	3.37	1.04	25.2	7.5	1.17	.284	3.97	7.73
12	Aaron Nola A. Nola	67	138	47	46	.505	138	4.09	909	4	3	0	828.1	759	376	394	118	179	25	0	2	3,389	7	9.88	1.94	5.08	1.28	26.8	5.3	1.13	.297	4.28	8.25
13	Logan Gilbert L. Gilbert	66	138	43	34	.558	138	3.57	835	2	1	0	794.0	664	315	335	103	173	22	0	6	3,203	38	9.46	1.96	4.83	1.17	26.1	5.4	1.05	.271	3.80	7.53
14	Merrill Kelly M. Kelly	65	128	46	35	.568	128	3.64	693	0	0	0	754.1	654	305	326	90	234	14	0	5	3,077	10	8.27	2.79	2.96	1.07	22.5	7.6	1.18	.276	3.89	7.80
15	Pablo López P. López	65	127	46	36	.561	127	3.64	782	1	1	0	722.2	653	292	308	87	182	35	0	3	2,974	18	9.74	2.27	4.30	1.08	26.3	6.1	1.16	.300	3.84	8.13
16	Sandy Alcantara S. Alcantara	65	116	36	47	.434	116	3.70	649	10	2	0	740.0	650	304	333	74	195	30	0	3	3,021	20	7.89	2.37	3.33	0.90	21.5	6.5	1.14	.278	4.05	7.91
17	Kyle Gibson K. Gibson	64	129	42	37	.532	128	4.64	617	0	0	0	723.2	722	373	391	94	242	27	0	3	3,074	20	7.67	3.01	2.55	1.17	20.1	7.9	1.33	.300	4.86	8.98
18	Mitch Keller M. Keller	62	142	39	55	.415	140	4.40	718	2	1	0	773.2	803	378	403	85	253	51	0	2	3,356	12	8.35	2.94	2.84	0.99	21.4	7.5	1.36	.319	4.69	9.34
19	Dylan Cease D. Cease	61	154	53	45	.541	154	3.67	1,060	3	3	0	845.1	690	345	379	90	340	26	0	7	3,552	47	11.29	3.62	3.12	0.96	29.8	9.6	1.22	.295	4.04	7.35
20	Nathan Eovaldi N. Eovaldi	60	126	51	28	.646	126	3.43	710	5	3	0	722.1	642	275	294	82	165	28	0	3	2,942	19	8.85	2.06	4.30	1.02	24.1	5.6	1.12	.286	3.66	8.00
21	George Kirby G. Kirby	59	104	42	31	.575	104	3.47	574	1	0	0	596.2	566	230	245	66	84	22	0	1	2,419	12	8.66	1.27	6.83	1.00	23.7	3.5	1.09	.299	3.70	8.54
22	Miles Mikolas M. Mikolas	59	132	39	49	.443	131	4.50	522	1	0	0	737.2	759	369	388	104	139	23	0	0	3,072	7	6.37	1.70	3.76	1.27	17.0	4.5	1.22	.287	4.73	9.26
23	Sonny Gray S. Gray	59	134	47	36	.566	134	3.56	806	1	1	0	740.2	646	293	315	76	202	26	0	1	3,040	26	9.79	2.45	3.99	0.92	26.5	6.6	1.14	.295	3.83	7.85
24	Tarik Skubal T. Skubal	59	121	51	30	.630	119	3.05	798	1	1	0	684.2	549	232	249	75	149	23	1	0	2,727	10	10.49	1.96	5.36	0.99	29.3	5.5	1.02	.282	3.27	7.22
25	Charlie Morton C. Morton	59	149	52	44	.542	143	4.09	888	0	0	0	798.0	710	363	387	99	319	76	1	6	3,410	16	10.02	3.60	2.78	1.12	26.0	9.4	1.29	.301	4.36	8.01