highest k/9 rate for a reliever, minimum 200 games

Edwin Díaz has the highest K/9 by a relief pitcher when pitching in 200+ games, with 14.50 per nine innings.

Showing:
  • Regular season
NAMEK/9GWLW%GSERASOCGSHOSVIPHERRHRBBHBPGFIBBTBFWPBB/9K/BBHR/9K%BB%WHIPBABIPRAH/9
1Edwin Díaz
E. Díaz
14.50
538
30
38
.441
0
3.04
862
0
0
260
535.0
382
181
194
57
193
43
408
11
2,192
34
3.25
4.47
0.96
39.3
8.8
1.07
.313
3.26
6.43
2Dellin Betances
D. Betances
14.47
373
21
23
.477
0
2.55
631
0
0
36
392.1
239
111
124
26
181
28
86
5
1,604
28
4.15
3.49
0.60
39.3
11.3
1.07
.289
2.84
5.48
3Aroldis Chapman
A. Chapman
14.44
915
63
51
.553
0
2.49
1,399
0
0
401
872.0
510
241
268
57
431
34
606
7
3,551
90
4.45
3.25
0.59
39.4
12.1
1.08
.278
2.77
5.26
4Josh Hader
J. Hader
14.32
512
38
32
.543
0
2.49
884
0
0
252
555.2
299
154
168
66
209
24
357
6
2,177
20
3.39
4.23
1.07
40.6
9.6
0.91
.234
2.72
4.84
5Devin Williams
D. Williams
13.81
350
34
18
.654
0
2.70
516
0
0
102
336.1
217
101
125
23
158
15
156
5
1,389
18
4.23
3.27
0.62
37.1
11.4
1.11
.287
3.34
5.81
6Craig Kimbrel
C. Kimbrel
13.71
897
57
53
.518
0
2.69
1,322
0
0
441
867.2
532
259
290
79
368
43
674
13
3,502
74
3.82
3.59
0.82
37.7
10.5
1.04
.268
3.01
5.52
7Fernando Cruz
F. Cruz
12.95
244
11
20
.355
0
4.09
342
0
0
4
237.2
183
108
117
26
126
8
35
4
1,018
23
4.77
2.71
0.98
33.6
12.4
1.30
.304
4.43
6.93
8Andrew Miller
A. Miller
12.93
546
35
28
.556
0
2.95
724
0
0
63
504.0
351
165
183
47
201
46
147
9
2,091
25
3.59
3.60
0.84
34.6
9.6
1.10
.283
3.27
6.27
9Cade Smith
C. Smith
12.66
216
20
7
.741
0
2.29
310
0
0
56
220.1
154
56
67
10
58
11
90
4
875
9
2.37
5.34
0.41
35.4
6.6
0.96
.296
2.74
6.29
10Andrés Muñoz
A. Muñoz
12.59
324
17
29
.370
0
2.76
443
0
0
106
316.2
212
97
113
26
128
17
172
12
1,286
21
3.64
3.46
0.74
34.4
10.0
1.07
.277
3.21
6.03
11Carlos Marmol
C. Marmol
12.33
506
18
29
.383
0
3.25
698
0
0
117
509.1
324
184
195
37
340
47
259
20
2,207
32
6.01
2.05
0.65
31.6
15.4
1.30
.265
3.45
5.73
12Kenley Jansen
K. Jansen
12.31
982
58
46
.558
0
2.61
1,327
0
0
496
970.1
634
281
302
95
305
33
737
21
3,854
22
2.83
4.35
0.88
34.4
7.9
0.97
.257
2.80
5.88
13Ken Giles
K. Giles
12.26
362
14
18
.438
0
2.71
484
0
0
115
355.1
283
107
121
28
114
5
208
5
1,454
24
2.89
4.25
0.71
33.3
7.8
1.12
.310
3.06
7.17
14Kirby Yates
K. Yates
12.25
516
32
29
.525
0
3.36
670
0
0
101
492.1
363
184
199
66
198
33
231
13
2,052
19
3.62
3.38
1.21
32.7
9.6
1.14
.274
3.64
6.64
15Rob Dibble
R. Dibble
12.17
385
27
25
.519
0
2.98
645
0
0
89
477.0
332
158
169
27
238
12
204
25
1,979
36
4.49
2.71
0.51
32.6
12.0
1.19
.289
3.19
6.26
16Bryan Abreu
B. Abreu
12.16
381
22
16
.579
0
2.84
527
0
0
24
390.0
281
123
135
34
188
27
89
0
1,628
27
4.34
2.80
0.78
32.4
11.5
1.20
.290
3.12
6.48
17Trevor Rosenthal
T. Rosenthal
12.12
373
12
25
.324
0
3.36
490
0
0
132
364.0
304
136
145
19
177
22
207
8
1,570
23
4.38
2.77
0.47
31.2
11.3
1.32
.331
3.59
7.52
18Corey Knebel
C. Knebel
12.05
308
13
16
.448
0
3.29
403
0
0
72
301.0
231
110
121
34
143
11
137
13
1,260
7
4.28
2.82
1.02
32.0
11.3
1.24
.294
3.62
6.91
19Alex Vesia
A. Vesia
11.95
368
19
14
.576
0
2.91
436
0
0
16
328.1
212
106
126
38
156
12
53
16
1,355
9
4.28
2.79
1.04
32.2
11.5
1.12
.244
3.45
5.81
20Billy Wagner
B. Wagner
11.92
853
47
40
.540
0
2.31
1,196
0
0
422
903.0
601
232
262
82
300
33
703
26
3,600
43
2.99
3.99
0.82
33.2
8.3
1.00
.261
2.61
5.99
21Brad Lidge
B. Lidge
11.92
602
26
32
.448
0
3.55
795
0
0
225
600.1
490
237
257
57
285
33
368
41
2,576
46
4.27
2.79
0.85
30.9
11.1
1.29
.308
3.85
7.35
22David Robertson
D. Robertson
11.84
880
68
46
.596
0
2.93
1,175
0
0
179
893.1
674
291
315
81
364
25
358
38
3,687
57
3.67
3.23
0.82
31.9
9.9
1.16
.290
3.17
6.79
23Michael Feliz
M. Feliz
11.82
227
17
8
.680
0
5.12
328
0
0
1
249.2
237
142
151
42
108
7
54
2
1,091
18
3.89
3.04
1.51
30.1
9.9
1.38
.322
5.44
8.54
24José Leclerc
J. Leclerc
11.74
357
12
21
.364
0
3.35
477
0
0
41
365.2
247
136
150
32
203
21
141
8
1,546
25
5.00
2.35
0.79
30.9
13.1
1.23
.264
3.69
6.08
25Liam Hendriks
L. Hendriks
11.73
446
30
21
.588
0
3.16
628
0
0
116
482.0
408
169
190
49
111
9
218
13
1,953
36
2.07
5.66
0.91
32.2
5.7
1.08
.311
3.55
7.62
StatMuse has game-level data for games pitched going back to the 1908 season.
Some of the information used here was obtained free of charge from Retrosheet.

More MLB News

More Mets Stats

Team Batting Leaders

HR

26

Soto

Juan Soto

RBI

76

Bichette

Bo Bichette

AVG

.275

Benge

Carson Benge
Team Pitching Leaders

W

11

McLean

Nolan McLean

K

189

McLean

Nolan McLean

ERA

3.18

McLean

Nolan McLean
Team Rankings

HR

194

9th

R

668

22nd

SO

1,398

7th

ERA

4.17

17th

2026 Division Standings
TEAMWLPCTGB
92
64
.590
86
70
.551
6.0
76
80
.487
16.0
73
83
.468
19.0
Mets Mets
71
85
.455
21.0
Schedule
DATEMATCHUPTIME (ET)
Tue
9/22
@
8:05 PM
Wed
9/23
@
8:05 PM
Thu
9/24
@
2:35 PM
Fri
9/25
@
6:45 PM
Sat
9/26
@
4:05 PM
Last Game
PHI Phillies

86 - 70

7

Final

2

NYM Mets

71 - 85

Sun 20 Sep 2026

MLB 2026 Batting Leaders

MLB 2026 Pitching Leaders

MLB Fantasy 2026

MLB 2026 Betting

MLB 2026 Standings

NL EastWLPCTGB
92
64
.590
86
70
.551
6.0
76
80
.487
16.0
73
83
.468
19.0
71
85
.455
21.0
NL CentralWLPCTGB
98
58
.628
87
69
.558
11.0
79
77
.506
19.0
76
80
.487
22.0
72
84
.462
26.0
NL WestWLPCTGB
96
60
.615
87
69
.558
9.0
82
74
.526
14.0
64
92
.410
32.0
57
99
.365
39.0
AL EastWLPCTGB
Rays Rays - x
95
60
.613
89
66
.574
6.0
84
72
.538
11.5
77
79
.494
18.5
75
81
.481
20.5
AL CentralWLPCTGB
81
75
.519
80
76
.513
1.0
73
83
.468
8.0
73
83
.468
8.0
67
89
.429
14.0
AL WestWLPCTGB
78
78
.500
77
79
.494
1.0
73
83
.468
5.0
61
95
.391
17.0
60
96
.385
18.0

MLB 2026 Scores & Schedule

Scores

DATEMATCHUPSCORE
Sun
9/6
@
8-12
Sun
9/6
@
5-4
Sun
9/6
@
3-1
Sun
9/6
@
0-1
Sun
9/6
@
2-3

Schedule

DATEMATCHUPTIME (ET)
Mon
9/21
@
6:35 PM
Mon
9/21
@
6:40 PM
Mon
9/21
@
9:45 PM
Tue
9/22
@
1:05 PM
Tue
9/22
@
6:35 PM