most k% by a relief pitcher in a career

5 pitchers are tied for the highest career strikeout percentage by a relief pitcher, with a strikeout percentage of 100.0. The first three are Eury Pérez, Romy Gonzalez and Danny Valencia.

Showing
  • Data note: Strikeout Percentage: player game data complete from 1916
  • Data note: Data: Retrosheet
NAMEK%GWLW%GSERASOCGSHOSVIPHERRHRBBHBPGFIBBTBFWPK/9BB/9K/BBHR/9BB%WHIPBABIPRAH/9
1Eury Pérez
E. Pérez
100.0
1
0
0
0
0.00
3
0
0
0
1.0
0
0
0
0
0
0
0
0
3
0
27.00
0.00
0.00
0.0
0.00
0.00
0.00
2Romy Gonzalez
R. Gonzalez
100.0
1
0
0
0
0.00
1
0
0
0
0.1
0
0
0
0
0
0
1
0
1
0
27.00
0.00
0.00
0.0
0.00
0.00
0.00
3Danny Valencia
D. Valencia
100.0
1
0
0
0
0.00
1
0
0
0
0.1
0
0
0
0
0
0
1
0
1
0
27.00
0.00
0.00
0.0
0.00
0.00
0.00
4Scott Sheldon
S. Sheldon
100.0
1
0
0
0
0.00
1
0
0
0
0.1
0
0
0
0
0
0
0
0
1
0
27.00
0.00
0.00
0.0
0.00
0.00
0.00
5Kevin Seitzer
K. Seitzer
100.0
1
0
0
0
0.00
1
0
0
0
0.1
0
0
0
0
0
0
1
0
1
0
27.00
0.00
0.00
0.0
0.00
0.00
0.00
6CC Sabathia
CC Sabathia
66.7
1
0
0
0
0.00
2
0
0
0
1.0
0
0
0
0
0
0
0
0
3
0
18.00
0.00
0.00
0.0
0.00
.000
0.00
0.00
7Chuck Nieson
C. Nieson
62.5
2
0
0
0
4.50
5
0
0
0
2.0
1
1
1
1
1
0
1
0
8
0
22.50
4.50
5.00
4.50
12.5
1.00
.000
4.50
4.50
8Roki Sasaki
R. Sasaki
55.6
5
0
0
0
0.00
10
0
0
0
5.0
3
0
0
0
0
0
0
0
18
0
18.00
0.00
0.00
0.0
0.60
.375
0.00
5.40
9Chris Vallimont
C. Vallimont
50.0
1
0
0
0
0.00
1
0
0
0
0.2
1
0
0
0
0
0
1
0
2
0
13.50
0.00
0.00
0.0
1.50
1.000
0.00
13.50
10Josh Phegley
J. Phegley
50.0
1
0
0
0
0.00
1
0
0
0
0.2
0
0
0
0
0
0
1
0
2
0
13.50
0.00
0.00
0.0
0.00
.000
0.00
0.00
11Yordano Ventura
Y. Ventura
50.0
1
1
0
1.000
0
0.00
3
0
0
0
1.2
1
0
0
0
0
0
0
0
6
1
16.20
0.00
0.00
0.0
0.60
.333
0.00
5.40
12Tyson Brummett
T. Brummett
50.0
1
0
0
0
0.00
2
0
0
0
0.2
2
0
0
0
0
0
1
0
4
0
27.00
0.00
0.00
0.0
3.00
1.000
0.00
27.00
13Rob Johnson
R. Johnson
50.0
2
0
0
0
0.00
2
0
0
0
1.1
0
0
0
0
0
0
2
0
4
0
13.50
0.00
0.00
0.0
0.00
.000
0.00
0.00
14Tony Saunders
T. Saunders
50.0
1
0
0
0
0.00
2
0
0
0
1.0
0
0
0
0
1
0
0
0
4
0
18.00
9.00
2.00
0.00
25.0
1.00
.000
0.00
0.00
15Bob Baird
B. Baird
50.0
2
0
0
0
0.00
3
0
0
0
2.0
0
0
0
0
0
0
1
0
6
0
13.50
0.00
0.00
0.0
0.00
.000
0.00
0.00
16Jim Mosolf
J. Mosolf
50.0
1
0
0
0
27.00
1
0
0
0
0.1
1
1
1
0
0
0
1
2
0
27.00
0.00
0.00
0.0
3.00
1.000
27.00
27.00
17Walter Bernhardt
W. Bernhardt
50.0
1
0
0
0
0.00
1
0
0
0
0.2
0
0
0
0
0
0
1
2
0
13.50
0.00
0.00
0.0
0.00
.000
0.00
0.00
18A.J. Burnett
A.J. Burnett
45.2
5
0
1
.000
0
10.50
14
0
0
0
6.0
9
7
7
0
4
0
1
1
31
3
21.00
6.00
3.50
0.00
12.9
2.17
.692
10.50
13.50
19Rafael Martin
R. Martin
44.1
21
2
0
1.000
0
4.50
30
0
0
0
16.0
12
8
10
4
6
1
7
0
68
0
16.88
3.38
5.00
2.25
8.8
1.13
.296
5.63
6.75
20Mason Miller
M. Miller
43.9
185
8
6
.571
0
2.32
348
0
0
88
205.2
108
53
63
15
80
5
138
6
793
12
15.23
3.50
4.35
0.66
10.1
0.91
.270
2.76
4.73
21Randy Johnson
R. Johnson
43.8
15
2
0
1.000
0
2.51
57
0
0
2
32.1
26
9
11
3
6
2
7
0
130
0
15.87
1.67
9.50
0.84
4.6
0.99
.371
3.06
7.24
22John Holdzkom
J. Holdzkom
43.8
9
1
0
1.000
0
2.00
14
0
0
1
9.0
4
2
2
1
2
0
3
0
32
1
14.00
2.00
7.00
1.00
6.3
0.67
.200
2.00
4.00
23Mark Whiten
M. Whiten
42.9
1
0
0
0
9.00
3
0
0
0
1.0
1
1
1
0
2
1
1
0
7
0
27.00
18.00
1.50
0.00
28.6
3.00
1.000
9.00
9.00
24Dick Joyce
D. Joyce
42.9
2
0
0
0
0.00
3
0
0
0
2.0
1
0
0
0
0
0
2
0
7
0
13.50
0.00
0.00
0.0
0.50
.250
0.00
4.50
25Daniel Espino
D. Espino
41.7
11
0
0
0
3.18
20
0
0
0
11.1
10
4
4
2
4
0
3
0
48
0
15.88
3.18
5.00
1.59
8.3
1.24
.364
3.18
7.94

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Team Batting Leaders

HR

25

Hernández

Heriberto Hernández

RBI

71

Lopez

Otto Lopez

AVG

.305

Lopez

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Team Pitching Leaders

W

13

Alcantara

Sandy Alcantara

K

170

Pérez

Eury Pérez

ERA

2.68

Meyer

Max Meyer
Team Rankings

HR

168

23rd

R

715

18th

SO

1,323

18th

ERA

4.09

13th

2026 Division Standings
TEAMWLPCTGB
94
68
.580
88
74
.543
6.0
Marlins Marlins
80
82
.494
14.0
77
85
.475
17.0
74
88
.457
20.0
Last Game
ATL Braves

94 - 68

3

Final

5

MIA Marlins

80 - 82

Sun 27 Sep 2026

MLB 2026 Batting Leaders

MLB 2026 Pitching Leaders

MLB Fantasy 2026

MLB 2026 Betting

MLB 2026 Standings

NL EastWLPCTGB
94
68
.580
88
74
.543
6.0
80
82
.494
14.0
77
85
.475
17.0
74
88
.457
20.0
NL CentralWLPCTGB
103
59
.636
Cubs Cubs - w
89
73
.549
14.0
82
80
.506
21.0
77
85
.475
26.0
75
87
.463
28.0
NL WestWLPCTGB
100
62
.617
91
71
.562
9.0
86
76
.531
14.0
65
97
.401
35.0
58
104
.358
42.0
AL EastWLPCTGB
Rays Rays - y
98
64
.605
93
68
.578
4.5
87
75
.537
11.0
79
82
.491
18.5
79
83
.488
19.0
AL CentralWLPCTGB
85
77
.525
84
78
.519
1.0
77
85
.475
8.0
76
86
.469
9.0
69
93
.426
16.0
AL WestWLPCTGB
81
81
.500
80
82
.494
1.0
76
86
.469
5.0
64
98
.395
17.0
62
100
.383
19.0

MLB 2026 Scores & Schedule

Scores

DATEMATCHUPSCORE
Tue
9/15
@
1-2
Tue
9/15
@
5-1
Tue
9/15
@
8-1
Wed
9/16
@
3-6
Wed
9/16
@
6-5

Schedule

DATEMATCHUPTIME (ET)
Tue
10/27
@
8:00 PM
Wed
10/28
@
8:00 PM
Fri
10/30
@
8:00 PM
Sat
10/31
@
8:00 PM