Player stats

Quality Start Percentage 2025

The percentage of a pitcher's starts that qualify as quality starts. Read this alongside the number of starts.

Season

Minimum workload: one inning pitched per game. Completed seasons use the league's scheduled regular-season game count; seasons in progress use team games played. This is a general pitching minimum, not a relief-pitcher qualification rule. Data through December 31, 2025. Data refreshed Sep 12, 2026, 7:39 AM UTC.

No. 1 / Quality Start Percentage / 2025

Bryan Woo

SEA

70.0%

Season leader

Quality Start Percentage2025 season
#	Player	Team	IP	BF	GS	QS%
1	B. WooBryan Woo	SEA	186.2	731	30	70.0%
2	C. SánchezCristopher Sánchez	PHI	202.0	807	32	68.8%
3	G. CrochetGarrett Crochet	BOS	205.1	814	32	68.8%
4	T. SkubalTarik Skubal	DET	195.1	748	31	67.7%
5	H. BrownHunter Brown	HOU	185.1	729	31	67.7%
6	L. WebbLogan Webb	SF	207.0	856	34	64.7%
7	F. ValdezFramber Valdez	HOU	192.0	802	31	64.5%
8	P. SkenesPaul Skenes	PIT	187.2	733	32	62.5%
9	M. FriedMax Fried	NYY	195.1	801	32	62.5%
10	N. PivettaNick Pivetta	SD	181.2	721	31	61.3%
11	Y. YamamotoYoshinobu Yamamoto	LAD	173.2	684	30	60.0%
12	B. BelloBrayan Bello	BOS	166.2	700	28	57.1%
13	M. KellyMerrill Kelly	TEX	184.0	748	32	56.3%
14	L. CastilloLuis Castillo	SEA	180.2	745	32	56.3%
15	J. LuzardoJesús Luzardo	PHI	183.2	758	32	56.3%
16	M. BoydMatthew Boyd	CHC	179.2	718	31	54.8%
17	C. RodónCarlos Rodón	NYY	195.1	789	33	54.5%
18	Z. LittellZack Littell	CIN	186.2	759	32	53.1%
19	M. KellerMitch Keller	PIT	176.1	749	32	53.1%
20	K. GausmanKevin Gausman	TOR	193.0	775	32	50.0%
21	R. RayRobbie Ray	SF	182.1	755	32	50.0%
22	D. PetersonDavid Peterson	NYM	168.2	723	30	50.0%
23	J. SorianoJosé Soriano	LAA	169.0	724	31	48.4%
24	B. SingerBrady Singer	CIN	169.2	716	32	46.9%
25	J. deGromJacob deGrom	TEX	172.2	669	30	46.7%
26	J. RyanJoe Ryan	MIN	171.0	689	30	46.7%
27	J. SpringsJeffrey Springs	ATH	171.0	713	30	46.7%
28	J. BerríosJosé Berríos	TOR	166.0	698	30	46.7%
29	Z. GallenZac Gallen	AZ	192.0	813	33	45.5%
30	G. WilliamsGavin Williams	CLE	167.2	704	31	45.2%
31	R. PepiotRyan Pepiot	TB	167.2	679	31	45.2%
32	K. FreelandKyle Freeland	COL	162.2	709	31	45.2%
33	S. GraySonny Gray	STL	180.2	753	32	43.8%
34	N. MartinezNick Martinez	CIN	165.2	683	26	42.3%
35	M. WachaMichael Wacha	KC	172.2	716	31	41.9%
36	F. PeraltaFreddy Peralta	MIL	176.2	723	33	39.4%
37	T. BibeeTanner Bibee	CLE	182.1	762	31	38.7%
38	S. AlcantaraSandy Alcantara	MIA	174.2	745	31	38.7%
39	A. AbbottAndrew Abbott	CIN	166.1	684	29	37.9%
40	M. ParkerMitchell Parker	WSH	164.2	725	30	36.7%
41	B. PfaadtBrandon Pfaadt	AZ	176.2	767	33	36.4%
42	C. BassittChris Bassitt	TOR	170.1	736	31	35.5%
43	K. HendricksKyle Hendricks	LAA	164.2	695	31	35.5%
44	S. BazShane Baz	TB	166.1	711	31	35.5%
45	L. SeverinoLuis Severino	ATH	162.2	705	29	34.5%
46	Y. KikuchiYusei Kikuchi	LAA	178.1	772	33	33.3%
47	D. KremerDean Kremer	BAL	171.2	708	29	31.0%
48	A. PallanteAndre Pallante	STL	162.2	715	31	29.0%
49	J. IrvinJake Irvin	WSH	180.0	787	33	27.3%
50	C. HolmesClay Holmes	NYM	165.2	708	31	25.8%

QS%: The percentage of a pitcher's starts that qualify as quality starts. Read this alongside the number of starts.

Understanding Quality Start Percentage

The percentage of a pitcher's starts that qualify as quality starts. Read this alongside the number of starts.

Formula: 100 × QS ÷ GS

Read rates alongside playing time. A small sample can produce an extreme result, and a missing value is different from zero.

Season rankings use regular-season records. A player has one combined row across teams; the team label identifies the associated team, not a separate team stint.

Source: MLB statistics and MLBDB derived measures. Formulas describe the measure above. Data refreshed Sep 12, 2026, 7:39 AM UTC.