who has the most pitching strikeouts in a season

Mark Reynolds has the most strikeouts in a season, with 223 strikeouts in 2009.

NAMESOSEASONTMGABRH2B3BHRRBIBBHBPSBCSPATBXBHSHSFIBBGIDPAVGOBPSLGOPSwRCWRAAwOBAwRC+BRAA
1Mark Reynolds
M. Reynolds
223
2009
155
578
98
150
30
1
44
102
76
5
24
9
662
314
75
0
3
3
8
.260
.349
.543
.892
108
28.4
.381
127
22.3
2Adam Dunn
A. Dunn
222
2012
151
539
87
110
19
0
41
96
105
1
2
1
649
252
60
0
4
3
8
.204
.333
.468
.800
90
16.2
.346
115
11.4
3James Wood
J. Wood
221
2025
157
598
87
153
38
0
31
94
85
3
15
7
689
284
69
0
3
8
12
.256
.350
.475
.825
104
22.2
.353
128
22.8
4Chris Davis
C. Davis
219
2016
157
566
99
125
21
0
38
84
88
8
1
0
665
260
59
0
3
3
6
.221
.332
.459
.792
90
12
.340
113
10.5
5Elly De La Cruz
E. De La Cruz
218
2024
160
618
105
160
36
10
25
76
69
6
67
16
696
291
71
2
1
2
12
.259
.339
.471
.809
103
21.5
.349
118
14.9
6Yoán Moncada
Y. Moncada
217
2018
149
578
73
136
32
6
17
61
67
1
12
6
650
231
55
2
2
1
4
.235
.315
.400
.714
74
-1.8
.311
96
-2.8
7Kyle Schwarber
K. Schwarber
215
2023
160
585
108
115
19
1
47
104
126
6
0
2
720
277
67
0
3
5
4
.197
.343
.474
.817
107
19
.350
120
17.5
8Eugenio Suárez
E. Suárez
214
2023
162
598
68
139
29
0
22
96
70
15
2
1
694
234
51
0
11
0
10
.232
.323
.391
.714
82
-2.9
.313
104
3.6
9Joey Gallo
J. Gallo
213
2021
TOT
153
498
90
99
13
1
38
77
111
6
6
0
616
228
52
0
1
5
6
.199
.351
.458
.808
92
17.4
.348
121
16.2
10Chris Carter
C. Carter
212
2013
148
506
64
113
24
2
29
82
70
4
2
0
585
228
55
0
5
1
8
.223
.320
.451
.770
75
10.5
.337
112
8.2
11Teoscar Hernández
T. Hernández
211
2023
160
625
70
161
29
2
26
93
38
8
7
2
678
272
57
0
7
2
6
.258
.305
.435
.741
82
-1.1
.317
106
5.3
12Giancarlo Stanton
G. Stanton
211
2018
158
617
102
164
34
1
38
100
70
8
5
0
705
314
73
0
10
5
17
.266
.343
.509
.852
108
25.9
.360
128
24
13Mark Reynolds
M. Reynolds
211
2010
145
499
79
99
17
2
32
85
83
9
7
4
596
216
51
0
5
7
8
.198
.320
.433
.753
72
4
.329
96
-3.1
14Aaron Judge
A. Judge
208
2017
155
542
128
154
24
3
52
114
127
5
9
4
678
340
79
0
4
11
15
.284
.422
.627
1.049
145
62.5
.430
174
61.5
15Chris Davis
C. Davis
208
2015
160
573
100
150
31
0
47
117
84
8
2
3
670
322
78
0
5
6
6
.262
.361
.562
.923
116
40.9
.390
149
38
16Joey Gallo
J. Gallo
207
2018
148
500
82
103
24
1
40
92
74
3
3
4
577
249
65
0
0
4
3
.206
.312
.498
.810
81
13.4
.343
108
5.7
17Chris Carter
C. Carter
206
2016
160
549
84
122
27
1
41
94
76
9
3
1
644
274
69
0
10
1
18
.222
.321
.499
.821
91
14.9
.346
113
10.7
18Drew Stubbs
D. Stubbs
205
2011
158
604
92
147
22
3
15
44
63
7
40
10
681
220
40
6
1
1
2
.243
.321
.364
.686
72
-4.4
.308
91
-7.3
19Mark Reynolds
M. Reynolds
204
2008
152
539
87
129
28
3
28
97
64
3
11
2
613
247
59
1
6
0
10
.239
.320
.458
.779
79
5
.338
98
-1.9
20Matt Chapman
M. Chapman
202
2021
151
529
75
111
15
3
27
72
80
4
3
2
622
213
45
0
9
0
6
.210
.314
.403
.716
74
-1.5
.311
102
1.4
21Riley Greene
R. Greene
201
2025
157
600
84
155
31
1
36
111
46
4
2
1
655
296
68
0
5
1
14
.258
.313
.493
.806
94
16.1
.343
122
17.1
22Ezequiel Tovar
E. Tovar
200
2024
157
655
83
176
45
4
26
78
23
4
6
5
694
307
75
5
7
1
16
.269
.295
.469
.763
89
7.9
.324
95
-4.4
23Kyle Schwarber
K. Schwarber
200
2022
155
577
100
126
21
3
46
94
86
4
10
1
669
291
70
0
2
3
10
.218
.323
.504
.827
100
23.8
.355
129
22.6
24Kris Bryant
K. Bryant
199
2015
151
559
87
154
31
5
26
99
77
9
13
4
650
273
62
0
5
0
7
.275
.369
.488
.858
103
29.9
.371
136
27.2
25Chris Davis
C. Davis
199
2013
160
584
103
167
42
1
53
138
72
10
4
1
673
370
96
0
7
12
4
.286
.370
.634
1.004
130
56.3
.421
167
51.4
StatMuse has season-level data for strikeouts going back to the 1891 season.

More Diamondbacks Stats

Team Batting Leaders

HR

36

Suárez

Eugenio Suárez

RBI

100

Perdomo

Geraldo Perdomo

AVG

.292

Naylor

Josh Naylor
Team Pitching Leaders

W

13

Gallen

Zac Gallen

K

175

Gallen

Zac Gallen

ERA

3.22

Kelly

Merrill Kelly
Team Rankings

HR

214

8th

R

791

6th

SO

1,288

23rd

ERA

4.49

23rd

2025 Division Standings
TEAMWLPCTGB
93
69
.574
90
72
.556
3.0
81
81
.500
12.0
Diamondbacks Diamondbacks
80
82
.494
13.0
43
119
.265
50.0
Schedule
DATEMATCHUPTIME (ET)
Thu
3/26
@
4:00 AM
Fri
3/27
@
4:00 AM
Sat
3/28
@
4:00 AM
Mon
3/30
@
10:10 PM
Tue
3/31
@
9:40 PM
Last Game
AZ Diamondbacks

80 - 82

4

Final

12

SDP Padres

90 - 72

Sun 28 Sep 2025

MLB 2025 Batting Leaders

MLB 2025 Pitching Leaders

MLB Fantasy 2025

MLB 2025 Betting

MLB 2025 Standings

NL EastWLPCTGB
96
66
.593
83
79
.512
13.0
79
83
.488
17.0
76
86
.469
20.0
66
96
.407
30.0
NL CentralWLPCTGB
97
65
.599
Cubs Cubs - w
92
70
.568
5.0
Reds Reds - w
83
79
.512
14.0
78
84
.481
19.0
71
91
.438
26.0
NL WestWLPCTGB
93
69
.574
90
72
.556
3.0
81
81
.500
12.0
80
82
.494
13.0
43
119
.265
50.0
AL EastWLPCTGB
94
68
.580
94
68
.580
89
73
.549
5.0
77
85
.475
17.0
75
87
.463
19.0
AL CentralWLPCTGB
88
74
.543
87
75
.537
1.0
82
80
.506
6.0
70
92
.432
18.0
60
102
.370
28.0
AL WestWLPCTGB
90
72
.556
87
75
.537
3.0
81
81
.500
9.0
76
86
.469
14.0
72
90
.444
18.0

MLB 2025 Scores & Schedule

Scores

DATEMATCHUPSCORE
Tue
9/16
@
6-2
Tue
9/16
@
9-4
Tue
9/16
@
4-5
Tue
9/16
@
1-2
Tue
9/16
@
5-7

Schedule

DATEMATCHUPTIME (ET)
Wed
3/25
@
8:05 PM
Thu
3/26
@
4:00 AM
Thu
3/26
@
4:00 AM
Thu
3/26
@
4:00 AM
Thu
3/26
@
2:10 PM