what is the highest k/9 by a pitcher in a season in the alcs with at least 5 ip

Jeff Hoffman has the highest K/9 with 5.0+ innings pitched in an ALCS, with 18.00 per nine innings.

NAMEK/9IPSEASONSERIESTMGWLW%GSERASOCGSHOSVHERRHRBBHBPGFIBBTBFWPBB/9K/BBHR/9K%BB%WHIPBABIPRAH/9
1Jeff Hoffman
J. Hoffman
18.00
5.0
2025
ALCS
TOR TOR
4
0
0
0
0.00
10
0
0
1
1
0
0
0
1
0
3
0
17
0
1.80
10.00
0.00
58.8
5.9
0.40
.167
0.00
1.80
2Justin Verlander
J. Verlander
16.50
6.0
2022
ALCS
HOU HOU
1
1
0
1.000
1
1.50
11
0
0
0
3
1
1
1
1
1
0
0
24
0
1.50
11.00
1.50
45.8
4.2
0.67
.200
1.50
4.50
3Andrew Miller
A. Miller
16.43
7.2
2016
ALCS
CLE CLE
4
0
0
0
0.00
14
0
0
1
3
0
0
0
0
0
1
0
25
0
0.00
0.00
56.0
0.0
0.39
.273
0.00
3.52
4Kelvin Herrera
K. Herrera
15.88
5.2
2015
ALCS
KCR KCR
5
0
0
0
0.00
10
0
0
0
3
0
0
0
0
0
0
0
20
0
0.00
0.00
50.0
0.0
0.53
.300
0.00
4.76
5Max Scherzer
M. Scherzer
15.88
5.2
2012
ALCS
DET DET
1
1
0
1.000
1
1.59
10
0
0
0
2
1
1
0
2
0
0
0
22
0
3.18
5.00
0.00
45.5
9.1
0.71
.200
1.59
3.18
6Pedro Martinez
P. Martinez
15.43
7.0
1999
ALCS
BOS BOS
1
1
0
1.000
1
0.00
12
0
0
0
2
0
0
0
2
0
0
0
25
0
2.57
6.00
0.00
48.0
8.0
0.57
.182
0.00
2.57
7Lance McCullers Jr.
L. McCullers Jr.
15.19
10.2
2020
ALCS
HOU HOU
2
0
2
.000
2
3.38
18
0
0
0
8
4
7
4
1
2
0
0
45
0
0.84
18.00
3.38
40.0
2.2
0.84
.200
5.91
6.75
8Roger Clemens
R. Clemens
15.00
9.0
2000
ALCS
NYY NYY
1
1
0
1.000
1
0.00
15
1
1
0
1
0
0
0
2
0
0
0
30
0
2.00
7.50
0.00
50.0
6.7
0.33
.077
0.00
1.00
9Mike Mussina
M. Mussina
15.00
15.0
1997
ALCS
BAL BAL
2
0
0
2
0.60
25
0
0
0
4
1
1
0
4
0
0
0
53
0
2.40
6.25
0.00
47.2
7.5
0.53
.167
0.60
2.40
10Cliff Lee
C. Lee
14.62
8.0
2010
ALCS
TEX TEX
1
1
0
1.000
1
0.00
13
0
0
0
2
0
0
0
1
0
0
0
27
0
1.13
13.00
0.00
48.1
3.7
0.38
.154
0.00
2.25
11Max Scherzer
M. Scherzer
14.18
13.1
2013
ALCS
DET DET
2
0
1
.000
2
2.70
21
0
0
0
6
4
4
0
7
2
0
0
52
1
4.72
3.00
0.00
40.4
13.5
0.98
.273
2.70
4.05
12Framber Valdez
F. Valdez
14.09
7.2
2023
ALCS
HOU HOU
2
0
2
.000
2
8.22
12
0
0
0
12
7
8
3
3
1
0
0
39
0
3.52
4.00
3.52
30.8
7.7
1.96
.450
9.39
14.09
13Mike Boddicker
M. Boddicker
14.00
9.0
1983
ALCS
BAL BAL
1
1
0
1.000
1
0.00
14
1
1
0
5
0
0
0
3
2
0
0
36
0
3.00
4.67
0.00
38.9
8.3
0.89
.294
0.00
5.00
14Joe Coleman
J. Coleman
14.00
9.0
1972
ALCS
DET DET
1
1
0
1.000
1
0.00
14
1
1
0
7
0
0
0
3
0
0
0
37
0
3.00
4.67
0.00
37.8
8.1
1.11
.350
0.00
7.00
15Dallas Keuchel
D. Keuchel
13.89
11.2
2017
ALCS
HOU HOU
2
1
1
.500
2
3.09
18
0
0
0
11
4
4
0
2
0
0
0
48
0
1.54
9.00
0.00
37.5
4.2
1.11
.393
3.09
8.49
16Koji Uehara
K. Uehara
13.50
6.0
2013
ALCS
BOS BOS
5
1
0
1.000
0
0.00
9
0
0
3
4
0
0
0
0
0
5
0
21
0
0.00
0.00
42.9
0.0
0.67
.333
0.00
6.00
17Calvin Schiraldi
C. Schiraldi
13.50
6.0
1986
ALCS
BOS BOS
4
0
1
.000
0
1.50
9
0
0
1
5
1
2
0
3
1
4
2
28
0
4.50
3.00
0.00
32.1
10.7
1.33
.333
3.00
7.50
18James Paxton
J. Paxton
12.96
8.1
2019
ALCS
NYY NYY
2
1
0
1.000
2
2.16
12
0
0
0
8
2
2
0
6
0
0
0
38
1
6.48
2.00
0.00
31.6
15.8
1.68
.400
2.16
8.64
19Hiroki Kuroda
H. Kuroda
12.91
7.2
2012
ALCS
NYY NYY
1
0
1
.000
1
3.52
11
0
0
0
5
3
3
0
0
0
0
0
28
0
0.00
0.00
39.3
0.0
0.65
.294
3.52
5.87
20Framber Valdez
F. Valdez
12.75
12.0
2020
ALCS
HOU HOU
2
1
1
.500
2
2.25
17
0
0
0
7
3
3
1
7
0
0
0
48
0
5.25
2.43
0.75
35.4
14.6
1.17
.261
2.25
5.25
21Anibal Sanchez
A. Sanchez
12.75
12.0
2013
ALCS
DET DET
2
1
1
.500
2
2.25
17
0
0
0
9
3
4
1
6
0
0
0
52
3
4.50
2.83
0.75
32.7
11.5
1.25
.286
3.00
6.75
22Carlos Rodón
C. Rodón
12.66
10.2
2024
ALCS
NYY NYY
2
1
0
1.000
2
2.53
15
0
0
0
8
3
3
1
1
0
0
0
41
0
0.84
15.00
0.84
36.6
2.4
0.84
.292
2.53
6.75
23Bryan Abreu
B. Abreu
12.60
5.0
2023
ALCS
HOU HOU
6
0
0
0
7.20
7
0
0
0
4
4
4
1
2
2
1
0
23
0
3.60
3.50
1.80
30.4
8.7
1.20
.273
7.20
7.20
24Gerrit Cole
G. Cole
12.60
5.0
2022
ALCS
NYY NYY
1
0
1
.000
1
5.40
7
0
0
0
5
3
5
1
2
1
0
0
24
0
3.60
3.50
1.80
29.2
8.3
1.40
.308
9.00
9.00
25Cristian Javier
C. Javier
12.60
5.0
2021
ALCS
HOU HOU
2
0
0
0
0.00
7
0
0
0
3
0
0
0
2
0
0
0
20
0
3.60
3.50
0.00
35.0
10.0
1.00
.273
0.00
5.40
StatMuse has game-level data for K/9 and innings pitched going back to the 1903 playoffs.
Some of the information used here was obtained free of charge from Retrosheet.

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LAD LAD
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TOR TOR
8:00 PM