Player stats

Pitching Walk Percentage 2021

The percentage of batters faced who walk, including intentional walks.

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, 2021. Data refreshed Sep 12, 2026, 7:39 AM UTC.

No. 1 / Pitching Walk Percentage / 2021

Nathan Eovaldi

BOS

4.6%

Season leader, lower is better

Pitching Walk Percentage2021 season, lower is better
#	Player	Team	IP	BF	BB%
1	N. EovaldiNathan Eovaldi	BOS	182.1	764	4.6%
2	J. UríasJulio Urías	LAD	185.2	745	5.1%
3	Z. GreinkeZack Greinke	HOU	171.0	697	5.2%
4	C. BurnesCorbin Burnes	MIL	167.0	657	5.2%
5	M. ScherzerMax Scherzer	LAD	179.1	693	5.2%
6	A. NolaAaron Nola	PHI	180.2	749	5.2%
7	H. Jin RyuHyun Jin Ryu	TOR	169.0	701	5.3%
8	C. FlexenChris Flexen	SEA	179.2	741	5.4%
9	T. AndersonTyler Anderson	SEA	167.0	703	5.4%
10	Z. WheelerZack Wheeler	PHI	213.1	849	5.4%
11	S. ManaeaSean Manaea	OAK	179.1	754	5.4%
12	C. IrvinCole Irvin	OAK	178.1	768	5.5%
13	K. HendricksKyle Hendricks	CHC	181.0	785	5.6%
14	G. ColeGerrit Cole	NYY	181.1	726	5.6%
15	J. BerríosJosé Berríos	TOR	192.0	781	5.8%
16	S. AlcantaraSandy Alcantara	MIA	205.2	837	6.0%
17	M. StromanMarcus Stroman	NYM	179.0	730	6.0%
18	A. WainwrightAdam Wainwright	STL	206.1	828	6.0%
19	B. WoodruffBrandon Woodruff	MIL	179.1	708	6.1%
20	M. FriedMax Fried	ATL	165.2	667	6.1%
21	A. DeSclafaniAnthony DeSclafani	SF	167.2	676	6.2%
22	W. BuehlerWalker Buehler	LAD	207.2	815	6.4%
23	K. GausmanKevin Gausman	SF	192.0	775	6.5%
24	Y. DarvishYu Darvish	SD	166.1	681	6.5%
25	R. RayRobbie Ray	TOR	193.1	773	6.7%
26	J. MusgroveJoe Musgrove	SD	181.1	748	7.2%
27	L. GiolitoLucas Giolito	CWS	178.2	720	7.2%
28	W. MileyWade Miley	CIN	163.0	690	7.2%
29	J. LylesJordan Lyles	TEX	180.0	769	7.3%
30	F. MontasFrankie Montas	OAK	187.0	778	7.3%
31	C. MortonCharlie Morton	ATL	185.2	756	7.7%
32	P. CorbinPatrick Corbin	WSH	171.2	751	8.0%
33	D. KeuchelDallas Keuchel	CWS	162.0	720	8.2%
34	T. MahleTyler Mahle	CIN	180.0	759	8.4%
35	G. MárquezGermán Márquez	COL	180.0	756	8.5%
36	K. GibsonKyle Gibson	PHI	182.0	754	8.5%
37	L. CastilloLuis Castillo	CIN	187.2	803	9.3%
38	D. CeaseDylan Cease	CWS	165.2	708	9.6%
39	L. McCullers Jr.Lance McCullers Jr.	HOU	162.1	684	11.1%

BB%: The percentage of batters faced who walk, including intentional walks.

Understanding Pitching Walk Percentage

The percentage of batters faced who walk, including intentional walks.

Formula: 100 × BB ÷ BF

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.