highest winning percent by a pitcher with at least 300 victories since 1960

Since 1960, Roger Clemens has the highest win percentage when winning 300+ games, at .658.

Showing:
  • Regular season
NAMEWW%LGGSERASOCGSHOSVIPHERRHRBBHBPGFIBBTBFWPK/9BB/9K/BBHR/9K%BB%WHIPBABIPRAERA-FIPFIP-H/9PRAA
1Roger Clemens
R. Clemens
354
.658
184
709
707
3.12
4,672
118
46
0
4916.2
4,185
1,707
1,885
363
1,580
159
0
63
20,240
143
8.55
2.89
2.96
0.66
23.1
7.8
1.17
.284
3.45
70
3.08
71
7.66
680.4
2Randy Johnson
R. Johnson
303
.646
166
618
603
3.29
4,875
100
37
2
4135.1
3,346
1,513
1,703
411
1,497
190
7
37
17,067
109
10.61
3.26
3.26
0.89
28.6
8.8
1.17
.291
3.71
75
3.18
73
7.28
554.3
3Greg Maddux
G. Maddux
355
.610
227
744
740
3.16
3,371
109
35
0
5008.1
4,726
1,756
1,981
353
999
137
3
177
20,421
70
6.06
1.80
3.37
0.63
16.5
4.9
1.14
.281
3.56
76
3.25
78
8.49
519.5
4Tom Seaver
T. Seaver
311
.603
205
656
647
2.86
3,640
231
61
1
4783.0
3,971
1,521
1,674
380
1,390
76
6
116
19,369
126
6.85
2.62
2.62
0.72
18.8
7.2
1.12
.259
3.15
79
3.03
85
7.47
286.1
5Tom Glavine
T. Glavine
305
.600
203
682
682
3.54
2,607
56
25
0
4413.1
4,298
1,734
1,900
356
1,500
66
0
145
18,604
65
5.32
3.06
1.74
0.73
14.0
8.1
1.31
.280
3.87
86
3.94
94
8.76
120.1
6Steve Carlton
S. Carlton
329
.574
244
741
709
3.22
4,136
254
55
2
5217.2
4,672
1,864
2,130
414
1,833
53
13
150
21,683
183
7.13
3.16
2.26
0.71
19.1
8.5
1.25
.279
3.67
87
3.14
86
8.06
271.5
7Don Sutton
D. Sutton
324
.559
256
774
756
3.26
3,574
178
58
5
5282.1
4,692
1,914
2,104
472
1,343
82
12
102
21,631
112
6.09
2.29
2.66
0.80
16.5
6.2
1.14
.261
3.58
92
3.23
90
7.99
181.2
8Gaylord Perry
G. Perry
314
.542
265
777
690
3.11
3,534
303
53
10
5350.0
4,938
1,846
2,128
399
1,379
108
33
164
21,953
160
5.95
2.32
2.56
0.67
16.1
6.3
1.18
.275
3.58
85
3.06
85
8.31
312.9
9Phil Niekro
P. Niekro
318
.537
274
864
716
3.35
3,342
245
45
29
5404.0
5,044
2,012
2,337
482
1,809
123
83
86
22,677
226
5.57
3.01
1.85
0.80
14.7
8.0
1.27
.270
3.89
87
3.61
95
8.40
116.1
10Nolan Ryan
N. Ryan
324
.526
292
807
773
3.19
5,714
222
61
3
5386.0
3,923
1,911
2,178
321
2,795
158
13
78
22,575
277
9.55
4.67
2.04
0.54
25.3
12.4
1.25
.265
3.64
90
2.96
83
6.56
370.2

More MLB News

More Red Sox Stats

Team Batting Leaders

HR

1

Contreras

Willson Contreras

RBI

1

Contreras

Willson Contreras

AVG

.500

Eaton

Nate Eaton
Team Pitching Leaders

K

5

Gray

Sonny Gray

ERA

0.00

Chapman

Aroldis Chapman
Team Rankings

HR

163

26th

R

689

23rd

SO

1,398

11th

ERA

3.54

3rd

2026 Division Standings
TEAMWLPCTGB
98
64
.605
93
68
.578
4.5
Red Sox Red Sox
87
75
.537
11.0
79
82
.491
18.5
79
83
.488
19.0
Last Game
BOS Red Sox

0 - 2

2

Final

9

NYY Yankees

2 - 0

Wed 30 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
Sun
9/13
@
0-2
Sun
9/13
@
5-6
Sun
9/13
@
1-8
Sun
9/13
@
9-2
Sun
9/13
@
4-3

Schedule

DATEMATCHUPTIME (ET)
Sat
10/3
@
1:00 PM
Sat
10/3
@
4:00 PM
Sat
10/3
@
6:30 PM
Sat
10/3
@
8:30 PM
Sun
10/4
@
4:00 PM