which relief pitcher has the highest k/9 in a season with at least 60 innings pitched

Edwin Díaz has the highest K/9 by a relief pitcher with 60.0+ innings pitched in a season, with 17.13 per nine innings in 2022.

NAME K/9 IP SEASON TM G W L W% GS ERA SO CG SHO SV H ER R HR BB HBP GF IBB TBF WP BB/9 K/BB HR/9 K% BB% WHIP BABIP RA H/9
1 Edwin Díaz
E. Díaz
17.13
62.0
2022
NYM NYM
61
3
1
.750
0
1.31
118
0
0
32
34
9
9
3
18
2
49
1
235
2
2.61
6.56
0.44
50.2
7.7
0.84
.330
1.31
4.94
2 Craig Kimbrel
C. Kimbrel
16.66
62.2
2012
ATL ATL
63
3
1
.750
0
1.01
116
0
0
42
27
7
7
3
14
2
56
0
231
5
2.01
8.29
0.43
50.2
6.1
0.65
.250
1.01
3.88
3 Craig Kimbrel
C. Kimbrel
16.43
69.0
2017
BOS BOS
67
5
0
1.000
0
1.43
126
0
0
35
33
11
11
6
14
4
51
0
254
5
1.83
9.00
0.78
49.6
5.5
0.68
.260
1.43
4.30
4 Josh Hader
J. Hader
16.41
75.2
2019
MIL MIL
61
3
5
.375
0
2.62
138
0
0
37
41
22
24
15
20
4
46
2
289
0
2.38
6.90
1.78
47.8
6.9
0.81
.232
2.85
4.88
5 Félix Bautista
F. Bautista
16.23
61.0
2023
BAL BAL
56
8
2
.800
0
1.48
110
0
0
33
30
10
14
4
26
2
46
0
237
7
3.84
4.23
0.59
46.4
11.0
0.92
.274
2.07
4.43
6 Carlos Marmol
C. Marmol
15.99
77.2
2010
CHC CHC
77
2
3
.400
0
2.55
138
0
0
38
40
22
23
1
52
8
70
4
332
2
6.03
2.65
0.12
41.6
15.7
1.18
.293
2.67
4.64
7 Aroldis Chapman
A. Chapman
15.83
63.2
2013
CIN CIN
68
4
5
.444
0
2.54
112
0
0
38
37
18
18
7
29
3
55
0
258
6
4.10
3.86
0.99
43.4
11.2
1.04
.280
2.54
5.23
8 Josh Hader
J. Hader
15.82
81.1
2018
MIL MIL
55
6
1
.857
0
2.43
143
0
0
12
36
22
23
9
30
1
14
0
306
0
3.32
4.77
1.00
46.7
9.8
0.81
.220
2.55
3.98
9 Aroldis Chapman
A. Chapman
15.74
66.1
2015
CIN CIN
65
4
4
.500
0
1.63
116
0
0
33
43
12
13
3
33
5
54
1
278
7
4.48
3.52
0.41
41.7
11.9
1.15
.331
1.76
5.83
10 Dellin Betances
D. Betances
15.53
73.0
2016
NYY NYY
73
3
6
.333
0
3.08
126
0
0
12
54
25
31
5
28
1
20
0
299
6
3.45
4.50
0.62
42.1
9.4
1.12
.353
3.82
6.66
11 Dellin Betances
D. Betances
15.52
66.2
2018
NYY NYY
66
4
6
.400
0
2.70
115
0
0
4
44
20
22
7
26
5
15
2
272
4
3.51
4.42
0.95
42.3
9.6
1.05
.311
2.97
5.94
12 Matt Barnes
M. Barnes
15.39
64.1
2019
BOS BOS
70
5
4
.556
0
3.78
110
0
0
4
51
27
29
8
38
2
14
2
285
13
5.32
2.89
1.12
38.6
13.3
1.38
.339
4.06
7.13
13 Aroldis Chapman
A. Chapman
15.32
71.2
2012
CIN CIN
68
5
5
.500
0
1.51
122
0
0
38
35
12
13
4
23
4
52
0
276
4
2.89
5.30
0.50
44.2
8.3
0.81
.252
1.63
4.40
14 Nick Anderson
N. Anderson
15.23
65.0
2019
TOT
68
5
4
.556
0
3.32
110
0
0
1
52
24
24
8
18
2
3
4
264
4
2.49
6.11
1.11
41.7
6.8
1.08
.349
3.32
7.20
15 Edwin Díaz
E. Díaz
15.22
73.1
2018
SEA SEA
73
0
4
.000
0
1.96
124
0
0
57
41
16
17
5
17
6
65
0
280
3
2.09
7.29
0.61
44.3
6.1
0.79
.281
2.09
5.03
16 Kirby Yates
K. Yates
14.98
60.2
2019
SDP SDP
60
0
5
.000
0
1.19
101
0
0
41
41
8
14
2
13
7
51
1
243
2
1.93
7.77
0.30
41.6
5.3
0.89
.325
2.08
6.08
17 Eric Gagne
E. Gagne
14.98
82.1
2003
LAD LAD
77
2
3
.400
0
1.20
137
0
0
55
37
11
12
2
20
3
67
2
306
2
2.19
6.85
0.22
44.8
6.5
0.69
.243
1.31
4.04
18 Billy Wagner
B. Wagner
14.95
74.2
1999
HOU HOU
66
4
1
.800
0
1.57
124
0
0
39
35
13
14
5
23
1
55
1
286
2
2.77
5.39
0.60
43.4
8.0
0.78
.226
1.69
4.22
19 Brad Lidge
B. Lidge
14.93
94.2
2004
HOU HOU
80
6
5
.545
0
1.90
157
0
0
29
57
20
21
8
30
6
44
5
369
3
2.85
5.23
0.76
42.5
8.1
0.92
.292
2.00
5.42
20 Corey Knebel
C. Knebel
14.92
76.0
2017
MIL MIL
76
1
4
.200
0
1.78
126
0
0
39
48
15
15
6
40
2
48
5
309
2
4.74
3.15
0.71
40.8
12.9
1.16
.311
1.78
5.68
21 Andrew Miller
A. Miller
14.89
74.1
2016
TOT
70
10
1
.909
0
1.45
123
0
0
12
42
12
13
8
9
2
23
0
275
1
1.09
13.67
0.97
44.7
3.3
0.69
.256
1.57
5.09
22 Andrew Miller
A. Miller
14.87
62.1
2014
TOT
73
5
5
.500
0
2.02
103
0
0
1
33
14
16
3
17
5
15
2
242
3
2.45
6.06
0.43
42.6
7.0
0.80
.263
2.31
4.76
23 Craig Kimbrel
C. Kimbrel
14.84
77.0
2011
ATL ATL
79
4
3
.571
0
2.10
127
0
0
46
48
18
19
3
32
1
64
1
306
4
3.74
3.97
0.35
41.5
10.5
1.04
.315
2.22
5.61
24 Armando Benitez
A. Benitez
14.77
78.0
1999
NYM NYM
77
4
3
.571
0
1.85
128
0
0
22
40
16
17
4
41
0
42
4
312
2
4.73
3.12
0.46
41.0
13.1
1.04
.259
1.96
4.62
25 Josh James
J. James
14.77
60.1
2019
HOU HOU
48
5
1
.833
0
4.77
99
0
0
1
46
32
34
10
35
4
18
0
263
6
5.22
2.83
1.49
37.6
13.3
1.34
.313
5.07
6.86
StatMuse has game-level data for K/9 and innings pitched going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.

More Mets Stats

Team Rankings

HR

222

5th

R

759

10th

SO

1,370

11th

ERA

4.04

18th

2025 Division Standings
TEAM W L PCT GB
Phillies Phillies
94
65
.591
Mets Mets
82
77
.516
12.0
Marlins Marlins
77
82
.484
17.0
Braves Braves
75
84
.472
19.0
Nationals Nationals
65
94
.409
29.0
Schedule
DATE MATCHUP TIME (ET)
Fri
9/26
NYM NYM
@
MIA MIA
7:10 PM
Sat
9/27
NYM NYM
@
MIA MIA
4:10 PM
Sun
9/28
NYM NYM
@
MIA MIA
3:10 PM
Last Game
CHC Cubs

89 - 70

5

Final

8

NYM Mets

82 - 77

Thu 25 Sep 2025

MLB 2025 Batting Leaders

MLB 2025 Pitching Leaders

MLB Fantasy 2025

MLB 2025 Betting

MLB 2025 Division Standings

NL East W L PCT GB
Phillies Phillies
94
65
.591
Mets Mets
82
77
.516
12.0
NL Central W L PCT GB
Brewers Brewers
96
63
.604
Cubs Cubs
89
70
.560
7.0
NL West W L PCT GB
Dodgers Dodgers
90
69
.566
Padres Padres
87
72
.547
3.0
AL East W L PCT GB
Yankees Yankees
91
68
.572
Blue Jays Blue Jays
91
68
.572
AL Central W L PCT GB
Guardians Guardians
86
73
.541
Tigers Tigers
86
73
.541
AL West W L PCT GB
Mariners Mariners
90
69
.566
Astros Astros
85
74
.535
5.0

MLB 2025 Scores & Schedule

Scores

DATE MATCHUP SCORE
Tue
9/9
KCR KCR
@
CLE CLE
4-3
Tue
9/9
WSH WSH
@
MIA MIA
3-8
Tue
9/9
HOU HOU
@
TOR TOR
3-2
Tue
9/9
TBR TBR
@
CWS CWS
5-6
Tue
9/9
CIN CIN
@
SDP SDP
2-1

Schedule

DATE MATCHUP TIME (ET)
Fri
9/26
STL STL
@
CHC CHC
2:20 PM
Fri
9/26
MIN MIN
@
PHI PHI
6:45 PM
Fri
9/26
CWS CWS
@
WSH WSH
6:45 PM
Fri
9/26
BAL BAL
@
NYY NYY
7:05 PM
Fri
9/26
TBR TBR
@
TOR TOR
7:07 PM