All-Time MLB Postseason Walks / 9 Leaders

Mark Buehrle is the all-time MLB Postseason leader in walks / 9 with 0.29, 0.10 clear of Schoolboy Rowe (0.39). He did it in 3 seasons, from 2000 to 2008. The top ten runs from 0.29 down to 1.11.

Career rate stats are limited to players with 30+ postseason innings, the usual bar for all-time rate leaderboards. Postseason games only, from the 1903 World Series on, Negro League World Series and playoffs included. Show all players

All-time MLB Postseason leader Mark Buehrle 2000–2008 · 3 seasons

0.29 Walks / 9 0.10 clear of Schoolboy Rowe

Showing Walks / 9 and the stats that give it context Full stat line

#	Player	Seasons	BB/9	W	L	ERA	G
1	Mark Buehrle	2000–2008 (3)	0.29	2	1	4.11	6
2	Schoolboy Rowe	1934–1940 (3)	0.39	2	5	3.91	8
3	Deacon Phillippe	1903–1909 (2)	0.72	3	2	2.70	7
4	Dennis Eckersley	1984–1998 (7)	0.75	1	3	3.00	28
5	Marco Estrada	2011–2016 (3)	0.76	3	3	2.64	10
6	Christy Mathewson	1905–1913 (4)	0.89	5	5	0.97	11
7	Lefty Grove	1929–1931 (3)	1.05	4	2	1.75	8
8	Cy Young	1903–1903 (1)	1.06	2	1	1.85	4
9	Cliff Lee	2009–2011 (3)	1.10	7	3	2.52	11
10	Carl Pavano	2003–2010 (3)	1.11	2	2	2.51	10
11	Rube Curry	1924–1927 (4)	1.13	6	2	1.82	12
12	Ralph Terry	1960–1964 (5)	1.17	2	4	2.93	9
13	Roy Halladay	2010–2011 (2)	1.18	3	2	2.37	5
14	Carl Mays	1916–1922 (4)	1.26	3	4	2.35	8
15	Mike Flanagan	1979–1989 (3)	1.27	3	2	4.33	7
16	Herb Pennock	1914–1932 (5)	1.30	5	0	1.95	10
17	Stephen Strasburg	2014–2019 (3)	1.30	6	2	1.46	9
18	Kevin Millwood	1999–2002 (4)	1.31	3	3	3.92	9
19	Mariano Rivera	1995–2011 (16)	1.34	8	1	0.70	96
20	Drew Rasmussen	2020–2026 (4)	1.35	2	1	2.70	8
21	Jim Lonborg	1967–1977 (3)	1.35	2	3	3.51	5
22	Eddie Cicotte	1917–1919 (2)	1.41	2	3	2.22	6
23	Don Sutton	1974–1986 (5)	1.44	6	4	3.68	15
24	Scott McGregor	1979–1983 (2)	1.45	3	3	1.63	6
25	Lew Burdette	1957–1958 (2)	1.46	4	2	2.92	6
26	Bert Blyleven	1970–1987 (3)	1.52	5	1	2.47	8
27	Stan Coveleski	1920–1925 (2)	1.52	3	2	1.74	5
28	Rick Porcello	2011–2018 (6)	1.57	1	3	4.72	16
29	Dizzy Dean	1934–1938 (2)	1.57	2	2	2.88	5
30	Madison Bumgarner	2010–2016 (4)	1.58	8	3	2.11	16
31	Bill Byrd	1939–1948 (2)	1.64	3	1	3.07	6
32	Curt Schilling	1993–2007 (5)	1.69	11	2	2.23	19
33	Satchel Paige	1927–1948 (4)	1.69	3	1	3.38	10
34	Adam Wainwright	2006–2021 (9)	1.73	4	5	2.83	29
35	Sandy Koufax	1959–1966 (4)	1.74	4	3	0.95	8
36	Tommy Bridges	1934–1945 (4)	1.76	4	1	3.52	7
37	Johnny Sain	1948–1953 (4)	1.76	2	2	2.64	6
38	Monte Pearson	1936–1939 (4)	1.77	4	0	1.01	4
39	Tarik Skubal	2024–2026 (3)	1.78	3	2	2.13	8
40	David Wells	1989–2006 (11)	1.80	10	5	3.17	27
41	Dennis Leonard	1976–1981 (5)	1.80	3	5	4.32	10
42	Eddie Plank	1905–1914 (4)	1.81	2	5	1.32	7
43	Bret Saberhagen	1984–1999 (5)	1.83	2	4	4.67	10
44	Julio Urias	2016–2022 (6)	1.84	8	3	3.68	23
45	Yu Darvish	2012–2025 (7)	1.86	5	8	3.96	14
46	Andy Cooper	1930–1939 (3)	1.87	2	0	1.87	5
47	Roberto Osuna	2015–2019 (4)	1.89	2	1	2.97	27
48	Bob Gibson	1964–1968 (3)	1.89	7	2	1.89	9
49	Mark Mulder	2001–2005 (3)	1.91	3	4	2.34	7
50	Nelson Briles	1967–1972 (4)	1.93	2	1	2.65	6

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