Single Season Winning % Leaders - Min 150 innings

Batters: PA AVG H R 2B 3B HR RBI SB OBP SLG OPS BB
Pitchers: ERA W L W% SH GS CG WHIP HR/9 SV SV%
Rank Player Year Team W L W-L% ERA G GS GF CG SH SV SV% IP BB SO WHIP BR9 HR9
1 Pedro Martinez 1997 SPS 21 5 .808 1.87 36 36 0 3 2 0 0 241 63 305 0.876 7.88 0.93
2 Billy Pierce 1949 PBP 16 4 .800 2.17 75 15 60 1 0 2 40 182.2 121 102 1.363 12.27 0.30
3 Wilcy Moore 1927 MIT 22 6 .786 2.19 78 5 73 1 0 13 52 201.2 57 75 1.250 11.25 0.13
4 Jacob Degrom 2015 IMG 10 3 .769 2.45 26 26 0 1 1 0 0 176.1 43 182 0.953 8.57 0.97
5 Harry Rhodes 1949 THD 16 5 .762 3.47 33 29 4 3 1 1 50 187 96 58 1.476 13.28 0.91
6 John Smoltz 1997 IMG 19 6 .760 2.62 33 33 0 5 1 0 0 247.1 55 249 1.108 9.97 0.84
7 Scott Erickson 1997 IMG 15 5 .750 2.79 32 32 0 1 1 0 0 222.1 56 126 1.088 9.80 0.81
Dolly Cooper 1927 DIN 18 6 .750 3.38 27 27 0 5 0 0 0 200 45 32 1.240 11.16 0.41
9 Gaylord Perry 1974 BBC 20 7 .741 3.40 35 35 0 11 3 0 0 270.1 96 187 1.158 10.42 0.87
10 Kevin Brown 1997 HRH 17 6 .739 1.94 34 34 0 4 2 0 0 236.1 82 187 1.058 9.52 0.30
Max Manning 1949 THD 17 6 .739 2.35 55 18 37 4 1 2 22 206.2 57 45 1.108 9.97 0.74
12 Colby Lewis 2015 PVD 11 4 .733 3.83 30 30 0 1 1 0 0 185.2 53 138 1.233 11.10 1.16
13 Tommy Thomas 1927 THD 24 9 .727 2.82 41 41 0 15 4 0 0 319.2 119 117 1.233 11.09 0.39
Glenn Abbott 1977 BUM 8 3 .727 4.18 60 5 55 0 0 3 100 153 56 77 1.431 12.88 1.18
15 Zack Greinke 2015 MNL 18 7 .720 2.30 29 29 0 6 1 0 0 222.2 49 182 0.862 7.76 0.73
Clayton Kershaw 2015 QCK 18 7 .720 2.91 34 33 1 6 3 0 0 231.2 52 293 1.019 9.17 0.89
Corey Kluber 2015 CIR 18 7 .720 3.16 32 32 0 2 2 0 0 216.2 74 236 1.195 10.76 1.12
18 Phil Niekro 1974 CIR 15 6 .714 2.58 28 28 0 14 7 0 0 227 83 152 1.106 9.95 0.48
Dave Freisleben 1974 SEP 10 4 .714 2.97 25 25 0 4 2 0 0 163.2 72 115 1.265 11.38 0.49
20 Greg Maddux 1997 HRH 17 7 .708 2.87 34 34 0 0 0 0 0 226 48 153 1.066 9.60 0.80
Frank Tanana 1977 MWB 17 7 .708 3.00 35 35 0 6 1 0 0 237.1 67 211 1.108 9.97 0.68
22 Joe Niekro 1977 THD 12 5 .706 3.03 30 29 1 0 0 0 0 181 75 95 1.293 11.64 0.90
Andy Benes 1997 SSL 12 5 .706 3.06 26 26 0 0 0 0 0 164.2 73 157 1.263 11.37 0.66
Brett Anderson 2015 SRR 12 5 .706 3.12 30 30 0 0 0 0 0 161.2 66 105 1.410 12.69 0.89
25 Steve Rogers 1977 COL 21 9 .700 3.27 37 37 0 9 2 0 0 275.1 92 203 1.271 11.44 0.78
26 Sonny Gray 2015 IMG 16 7 .696 2.10 30 30 0 0 0 0 0 206 49 152 0.879 7.91 0.66
Mike Scott 1987 QBS 16 7 .696 2.62 32 32 0 6 0 0 0 230.1 74 206 1.059 9.53 0.78
Mickey Lolich 1974 SEP 16 7 .696 4.44 33 33 0 3 0 0 0 211 43 134 1.322 11.90 1.32
29 Potato Piloto 1949 DIN 9 4 .692 3.06 86 5 81 0 0 8 73 153 56 50 1.268 11.41 0.59
Teddy Higuera 1987 DPC 18 8 .692 4.27 35 35 0 4 2 0 0 232 95 210 1.353 12.18 0.78
31 Tom Seaver 1977 COL 20 9 .690 3.68 37 37 0 0 0 0 0 251.2 83 179 1.291 11.62 0.93
32 Carlos Martinez 2015 SSL 11 5 .688 3.21 34 28 6 0 0 0 0 174 72 146 1.345 12.10 1.09
33 Bill Stafford 1961 QQB 13 6 .684 3.53 27 27 0 1 0 0 0 168.1 57 78 1.319 11.87 0.91
Charlie Leibrandt 1987 SAT 13 6 .684 3.61 30 30 0 4 1 0 0 209.2 79 140 1.245 11.20 0.99
Kyle Gibson 2015 PVD 13 6 .684 3.70 31 31 0 0 0 0 0 185 60 116 1.292 11.63 0.88
Paul Splittorff 1977 MWB 13 6 .684 3.88 33 33 0 2 0 0 0 181 95 84 1.602 14.42 0.30
Mike Mccormick 1961 QQB 13 6 .684 4.76 37 37 0 0 0 0 0 221 91 139 1.376 12.38 1.34
Rick Rhoden 1977 SSL 13 6 .684 5.22 26 26 0 3 0 0 0 179.1 74 112 1.556 14.00 1.20
39 Pat Scantlebury 1949 SRR 17 8 .680 3.98 49 34 15 1 0 0 0 242 88 87 1.479 13.31 0.93
Garland Braxton 1927 COL 17 8 .680 4.23 93 0 93 0 0 22 61 157.1 51 90 1.373 12.36 0.46
41 Bob Lemon 1949 SPS 25 12 .676 3.04 42 40 2 12 3 0 0 308.1 155 167 1.242 11.18 0.90
42 Dolf Luque 1927 MNL 16 8 .667 2.96 32 28 4 6 1 0 0 224.2 53 72 1.255 11.30 0.40
Oscar Levis 1927 DIN 14 7 .667 3.00 27 27 0 8 3 0 0 204 52 40 1.123 10.10 0.62
Mountain Drop Mitchell 1927 MNL 10 5 .667 3.09 34 18 16 6 1 2 40 166 59 35 1.349 12.14 0.27
Jack Sanford 1961 PBP 14 7 .667 3.22 38 27 11 6 1 0 0 204 95 106 1.299 11.69 0.97
Tommy John 1977 MWB 18 9 .667 3.24 38 38 0 1 0 0 0 219.2 61 132 1.256 11.31 0.98
Glen Hobbie 1961 PBP 12 6 .667 3.31 34 26 8 3 1 2 67 184.2 50 94 1.256 11.31 1.12
Gerrit Cole 2015 PBP 16 8 .667 3.60 30 30 0 1 1 0 0 207.1 50 218 1.158 10.42 0.74
Randy Johnson 1997 PBP 16 8 .667 3.64 32 32 0 1 0 0 0 207.2 103 304 1.291 11.61 1.08
John D'acquisto 1974 PBP 12 6 .667 3.74 26 26 0 0 0 0 0 149.1 84 100 1.353 12.17 0.96
Howard Ehmke 1927 IMG 14 7 .667 3.75 50 24 26 3 0 0 0 197 58 110 1.310 11.79 0.41
Don Mossi 1961 GTL 14 7 .667 3.78 30 30 0 7 0 0 0 223.2 56 126 1.256 11.31 1.05
Jim O'toole 1961 IMG 16 8 .667 3.83 35 29 6 7 2 2 100 213.2 112 137 1.395 12.55 0.67
Floyd Bannister 1987 SRR 16 8 .667 3.86 31 31 0 4 1 0 0 200.2 69 113 1.186 10.67 1.35
Carlos Perez 1997 GTL 16 8 .667 3.91 30 30 0 3 1 0 0 207 52 107 1.208 10.87 1.04
Randy Gumpert 1949 GTL 16 8 .667 3.99 33 31 2 9 0 0 0 232.1 67 68 1.248 11.23 0.97
Dick Ruthven 1977 PBP 10 5 .667 4.15 36 25 11 1 0 0 0 151.2 77 86 1.444 13.00 0.83
58 Red Lucas 1927 COL 17 9 .654 3.14 35 33 2 8 0 0 0 252 58 67 1.131 10.18 0.32
Don Sutton 1977 THD 17 9 .654 4.57 37 37 0 2 0 0 0 240.1 88 162 1.456 13.11 1.24
60 Guy Bush 1927 IMG 15 8 .652 2.51 37 23 14 2 0 4 100 190 71 76 1.137 10.23 0.14
Hank Borowy 1949 PVA 15 8 .652 3.65 31 31 0 3 1 0 0 199.2 94 55 1.337 12.04 0.81
62 Cliff Chambers 1949 PVA 13 7 .650 3.70 32 29 3 2 0 0 0 194.2 74 98 1.279 11.51 0.92
Francisco Cordova 1997 THD 13 7 .650 4.02 30 30 0 3 1 0 0 177 59 122 1.299 11.69 1.02
Bob Knepper 1977 THD 13 7 .650 4.41 28 28 0 0 0 0 0 163.1 76 114 1.371 12.34 1.21
Ernie Broglio 1961 SSL 13 7 .650 4.47 35 23 12 2 0 0 0 173 88 107 1.410 12.69 1.04
Dick Fowler 1949 THD 13 7 .650 4.83 31 31 0 3 0 0 0 190 100 53 1.653 14.87 1.14
67 Dick Donovan 1961 MNL 11 6 .647 2.60 23 23 0 7 2 0 0 169.1 26 70 0.980 8.82 1.01
Bill Werle 1949 COL 11 6 .647 2.71 54 27 27 0 0 1 33 172.2 47 87 1.112 10.01 0.47
69 Jim Clancy 1987 PBP 16 9 .640 4.35 33 33 0 3 0 0 0 223.1 76 200 1.401 12.61 1.05
70 Ted Lyons 1927 BUM 23 13 .639 3.46 84 14 70 5 1 4 50 312 77 80 1.333 12.00 0.35
71 Dave Koslo 1949 COL 14 8 .636 3.10 92 6 86 0 0 20 83 209 71 77 1.129 10.16 0.69
Tom Glavine 1997 SRR 14 8 .636 3.15 34 34 0 1 0 0 0 234.1 80 146 1.208 10.87 0.73
Dutch Ulrich 1927 DIN 14 8 .636 3.19 30 28 2 3 0 0 0 203 55 52 1.330 11.97 0.49
Sheriff Blake 1927 PBP 14 8 .636 4.06 45 23 22 8 0 4 80 213 105 65 1.610 14.49 0.17
Bobby Witt 1997 MIT 7 4 .636 4.63 48 13 35 4 1 1 50 149.2 60 97 1.437 12.93 1.38
76 Carmen Hill 1927 SSL 19 11 .633 2.94 49 31 18 13 2 1 100 294.1 107 98 1.284 11.56 0.40
77 Hector Santiago 2015 GTL 12 7 .632 2.59 28 28 0 2 1 0 0 180.2 64 151 1.024 9.22 0.95
Shawn Estes 1997 IMG 12 7 .632 3.99 29 29 0 1 0 0 0 187.1 104 172 1.399 12.59 0.91
Mike Morgan 1997 DIN 12 7 .632 4.06 26 26 0 0 0 0 0 159.2 43 101 1.309 11.78 1.01
80 Gerry Staley 1949 COL 17 10 .630 3.84 85 4 81 0 0 14 67 182.2 67 57 1.418 12.76 0.34
Bob Purkey 1961 GTL 17 10 .630 3.89 33 31 2 12 1 0 0 242.2 66 120 1.302 11.72 1.30
Jesse Hubbard 1927 GTL 17 10 .630 4.22 31 31 0 12 2 0 0 239 27 45 1.251 11.26 0.75
Joe Shaute 1927 MWB 17 10 .630 4.23 30 30 0 9 0 0 0 231.2 93 82 1.459 13.13 0.70
Phil Niekro 1977 SRR 17 10 .630 4.25 37 37 0 6 1 0 0 243.2 152 182 1.592 14.33 0.66
85 Jim Archer 1961 PBP 15 9 .625 2.49 38 25 13 4 1 1 50 195.1 59 108 1.280 11.52 0.37
Jim Kaat 1974 IMG 10 6 .625 2.82 25 25 0 4 2 0 0 179 47 76 1.067 9.60 0.50
Howie Fox 1949 DIN 15 9 .625 3.08 44 33 11 1 0 0 0 239.2 81 82 1.218 10.97 0.64
Brad Radke 1997 GTL 15 9 .625 3.10 32 32 0 7 1 0 0 235.1 58 157 1.045 9.41 0.84
Luis Tiant 1974 GRR 15 9 .625 3.76 31 31 0 6 3 0 0 220.1 97 131 1.389 12.50 0.61
J.A. Happ 2015 COL 15 9 .625 4.15 32 32 0 0 0 0 0 164.2 63 131 1.403 12.63 1.20
Preacher Roe 1949 TLF 15 9 .625 4.57 30 30 0 6 1 0 0 222.2 56 124 1.397 12.57 1.21
92 Corner Pocket Yokely 1927 TLF 18 11 .621 3.00 34 34 0 8 4 0 0 246.1 86 71 1.100 9.90 0.40
93 Bert Blyleven 1974 GTL 13 8 .619 2.45 27 27 0 13 1 0 0 213.1 65 200 1.144 10.29 0.38
Steve Carlton 1977 SRR 13 8 .619 4.02 35 35 0 3 1 0 0 230.1 77 156 1.389 12.50 0.94
95 Ken Raffensberger 1949 THD 21 13 .618 4.05 41 40 1 12 4 0 0 277.2 102 117 1.401 12.61 0.88
96 Jerry Koosman 1977 MNL 16 10 .615 2.62 30 30 0 8 2 0 0 227 69 190 1.167 10.51 0.95
Harry Salmon 1927 MIT 16 10 .615 2.75 79 17 62 11 1 7 78 281 63 108 1.125 10.12 0.54
Orel Hershiser 1987 DPC 16 10 .615 3.64 37 35 2 4 2 0 0 239.2 69 191 1.248 11.23 0.94
99 Dallas Keuchel 2015 COL 14 9 .609 3.41 31 31 0 3 1 0 0 224.1 64 224 1.137 10.23 0.72
Lefty Smith 1949 CIR 14 9 .609 3.43 35 24 11 7 2 0 0 202 125 86 1.391 12.52 0.53