highest k/9 in a single game

Bill Steele has the highest K/9 in a game, with 162.00 per nine innings against the Boston Braves on July 11, 1912.

Interpreted as:
Highest k/9 by a player in a single regular-season game
NAMEK/9DATETMOPPDECGSERASOCGSHOSVIPHERRHRBBHBPGFIBBTBFWP
1Bill Steele
B. Steele
162.00
7/11/1912
vs
1
27.00
6
0
0
0
0.1
2
1
2
0
2
0
0
6
0
2Herm Holshouser
H. Holshouser
81.00
7/27/1930
vs
0
81.00
3
0
0
0
0.1
1
3
3
0
2
0
0
4
0
3Aroldis Chapman
A. Chapman
54.00
4/15/2024
@
L
0
81.00
2
0
0
0
0.1
1
3
3
0
1
0
0
0
4
1
4Brandon Hughes
B. Hughes
54.00
8/21/2022
vs
0
27.00
2
0
0
0
0.1
1
1
1
1
0
0
0
0
3
1
5Ryan Hendrix
R. Hendrix
54.00
7/16/2021
vs
0
27.00
2
0
0
0
0.1
1
1
1
0
0
0
0
0
3
2
6Derek Law
D. Law
54.00
9/27/2019
vs
0
27.00
2
0
0
0
0.1
3
1
2
0
0
0
0
0
5
0
7Justin Anderson
J. Anderson
54.00
7/13/2019
vs
0
27.00
2
0
0
0
0.1
0
1
1
0
0
0
0
0
2
1
8Matt Barnes
M. Barnes
54.00
4/12/2019
vs
0
0.00
2
0
0
0
0.1
0
0
0
0
0
0
0
0
2
1
9Yusmeiro Petit
Y. Petit
54.00
9/3/2018
vs
0
0.00
2
0
0
0
0.1
0
0
0
0
1
0
0
0
3
0
10Roberto Osuna
R. Osuna
54.00
8/20/2017
@
L
0
81.00
2
0
0
0
0.1
2
3
3
0
0
1
1
0
6
3
11Miguel Castro
M. Castro
54.00
7/30/2017
@
0
54.00
2
0
0
0
0.1
1
2
2
1
0
0
0
0
3
1
12Dellin Betances
D. Betances
54.00
6/8/2017
vs
0
0.00
2
0
0
0
0.1
0
0
0
0
2
0
1
0
4
1
13Aroldis Chapman
A. Chapman
54.00
5/27/2016
@
0
0.00
2
0
0
0
0.1
0
0
0
0
0
0
1
0
2
0
14Jerry Blevins
J. Blevins
54.00
4/17/2016
@
0
0.00
2
0
0
0
0.1
0
0
0
0
0
0
0
0
2
1
15Josh Zeid
J. Zeid
54.00
7/5/2014
@
0
27.00
2
0
0
0
0.1
1
1
1
1
2
0
0
0
5
1
16Michael Gonzalez
M. Gonzalez
54.00
6/20/2013
@
L
0
81.00
2
0
0
0
0.1
2
3
3
1
0
0
1
0
4
1
17Carter Capps
C. Capps
54.00
4/7/2013
@
0
0.00
2
0
0
0
0.1
0
0
0
0
0
0
0
0
2
1
18Jason Frasor
J. Frasor
54.00
4/7/2011
vs
L
0
27.00
2
0
0
0
0.1
1
1
1
0
0
1
0
0
4
1
19Carlos Villanueva
C. Villanueva
54.00
5/16/2010
vs
0
0.00
2
0
0
0
0.1
0
0
0
0
0
0
0
0
2
1
20Brent Leach
B. Leach
54.00
6/1/2009
vs
0
27.00
2
0
0
0
0.1
1
1
1
0
0
0
0
0
3
2
21Wesley Wright
W. Wright
54.00
9/25/2008
vs
0
0.00
2
0
0
0
0.1
0
0
0
0
0
1
0
0
3
1
22Jose Valverde
J. Valverde
54.00
4/15/2008
@
L
0
81.00
2
0
0
0
0.1
3
3
4
2
0
1
1
0
6
0
23Derrick Turnbow
D. Turnbow
54.00
8/16/2007
vs
0
108.00
2
0
0
0
0.1
1
4
5
0
3
0
0
0
6
1
24Todd Van Poppel
T. Van Poppel
54.00
9/19/2002
@
0
81.00
2
0
0
0
0.1
2
3
3
1
1
1
0
0
6
2
25Vicente Padilla
V. Padilla
54.00
9/18/2000
vs
L
0
108.00
2
0
0
0
0.1
3
4
4
0
1
0
0
1
6
1
Results may be incomplete. StatMuse has complete game-level data for K/9 going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.

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