Single Season ERA - minimum 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 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
3 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
4 Roger Clemens 1997 MNL 16 12 .571 2.11 35 35 0 9 2 0 0 269.1 83 283 1.073 9.66 0.67
5 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
6 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
7 Jon Matlack 1974 IMG 12 9 .571 2.30 25 25 0 9 2 0 0 195.1 56 142 1.080 9.72 0.28
8 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
9 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
10 Jake Arrieta 2015 BRI 14 13 .519 2.43 31 31 0 5 3 0 0 229.1 59 224 0.977 8.79 0.63
11 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
12 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
13 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
14 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
15 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
16 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
17 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
18 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
19 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
20 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
21 Burleigh Grimes 1927 SSL 16 16 .500 2.65 46 32 14 5 2 0 0 258 94 115 1.291 11.62 0.42
22 Jim Perry 1974 GTL 7 12 .368 2.68 26 26 0 8 1 0 0 191.1 48 60 1.265 11.38 0.38
23 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
24 Vic Aldridge 1927 CIR 16 11 .593 2.71 36 34 2 8 3 0 0 245.1 96 107 1.333 12.00 0.55
25 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
26 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
27 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
28 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
29 Frank Lary 1961 SUS 12 15 .444 2.82 30 29 1 9 5 0 0 214 61 107 1.131 10.18 0.46
30 Gready McKinnis 1949 SSL 11 15 .423 2.83 32 32 0 9 0 0 0 229 75 103 1.162 10.45 0.51
31 Dennis Leonard 1977 MIT 17 13 .567 2.83 59 27 32 6 0 6 60 260.2 87 221 1.162 10.46 0.79
32 Don Sutton 1987 QBS 10 8 .556 2.83 27 27 0 1 0 0 0 168.1 49 96 1.212 10.91 0.96
33 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
34 David Price 2015 PVD 9 14 .391 2.87 32 32 0 1 0 0 0 213 42 214 1.169 10.52 0.46
35 Clifford Carter 1927 MIT 13 13 .500 2.88 36 35 1 2 1 0 0 212.2 69 46 1.227 11.05 0.63
36 Ismael Valdes 1997 SSL 9 7 .562 2.89 29 28 1 1 0 0 0 186.2 65 111 1.200 10.80 1.06
37 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
38 Jack Quinn 1927 TBK 8 14 .364 2.93 30 26 4 7 2 0 0 193.1 62 48 1.407 12.66 0.37
39 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
40 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
41 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
42 Lefty Grove 1927 SRR 14 16 .467 2.99 73 26 47 5 2 4 50 274.1 128 184 1.436 12.93 0.20
43 Charlie Root 1927 GTL 19 13 .594 2.99 40 39 1 19 3 0 0 322.1 131 146 1.198 10.78 0.53
44 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
45 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
46 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
47 Jesse Petty 1927 GTL 16 18 .471 3.02 40 36 4 14 1 0 0 283.1 74 103 1.214 10.93 0.29
48 Jon Lieber 1997 DIN 12 9 .571 3.03 29 29 0 0 0 0 0 181.1 38 152 1.169 10.52 0.94
49 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
50 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
51 George Pipgras 1927 BUM 10 9 .526 3.04 35 31 4 1 0 0 0 168.2 85 83 1.429 12.86 0.16
52 Park Chan Ho 1997 MNL 12 8 .600 3.04 33 29 4 2 1 0 0 192.1 73 149 1.165 10.48 1.22
53 Alan Benes 1997 SPS 12 9 .571 3.06 26 26 0 2 1 0 0 162 80 169 1.191 10.72 0.72
54 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
55 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
56 Buzz Capra 1974 CIR 10 7 .588 3.06 25 25 0 3 0 0 0 179.1 84 110 1.255 11.29 0.70
57 Dazzy Vance 1927 MNL 10 20 .333 3.07 39 34 5 13 3 0 0 272.2 77 175 1.133 10.20 0.40
58 Andy Cooper 1927 TBK 10 7 .588 3.07 29 18 11 8 3 1 100 155.1 14 44 1.120 10.08 0.52
59 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
60 Waite Hoyt 1927 BRI 15 13 .536 3.08 34 34 0 13 2 0 0 257 55 112 1.183 10.65 0.53
61 Tom Griffin 1974 CIR 10 9 .526 3.09 26 26 0 3 2 0 0 180.2 70 82 1.306 11.76 0.50
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
63 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
64 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
65 Nolan Ryan 1987 MNL 13 10 .565 3.11 27 27 0 4 0 0 0 194 78 233 1.129 10.16 0.84
66 Mike Garcia 1949 IMG 11 11 .500 3.11 52 13 39 4 2 13 72 165 58 93 1.224 11.02 0.49
67 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
68 Cole Hamels 2015 QCK 12 11 .522 3.12 33 33 0 4 3 0 0 210.1 74 189 1.174 10.57 0.94
69 Don Sutton 1974 TLF 6 8 .429 3.13 24 23 1 0 0 0 0 149.2 39 93 1.183 10.64 1.14
70 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
71 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
72 Pete Alexander 1927 MNL 18 12 .600 3.15 35 34 1 15 3 0 0 274 51 66 1.226 11.04 0.36
73 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
74 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
75 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
76 Fergie Jenkins 1974 BRI 12 9 .571 3.21 23 23 0 10 0 0 0 185 33 115 1.086 9.78 1.17
77 Ray Kremer 1927 TBK 11 12 .478 3.21 34 29 5 11 4 2 100 229.2 66 67 1.271 11.44 0.31
78 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
79 Gene Richardson 1949 GTL 15 10 .600 3.23 35 35 0 7 4 0 0 253.2 109 136 1.329 11.96 0.53
80 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
81 Nolan Ryan 1977 SRR 16 16 .500 3.26 37 37 0 10 0 0 0 268 206 298 1.474 13.26 0.47
82 Phil Cockrell 1927 SSL 14 11 .560 3.26 30 30 0 7 4 0 0 221 70 44 1.167 10.51 0.69
83 Michael Fiers 2015 QCK 10 11 .476 3.26 29 29 0 0 0 0 0 179.1 68 178 1.188 10.69 1.05
84 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
85 Hank Miller 1949 TLF 13 10 .565 3.27 30 30 0 5 1 0 0 217.1 102 99 1.385 12.46 0.50
86 Jim Rooker 1974 GRR 11 11 .500 3.30 29 29 0 6 1 0 0 210 95 121 1.362 12.26 0.69
87 Doc Medich 1974 GRR 12 9 .571 3.31 29 27 2 2 0 0 0 174 91 98 1.580 14.22 0.78
88 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
89 Bullet Joe Rogan 1927 BRI 6 12 .333 3.32 42 18 24 3 0 6 75 176 47 90 1.188 10.69 0.41
90 Bill Wegman 1987 QBS 10 11 .476 3.34 31 31 0 4 0 0 0 210 53 91 1.262 11.36 0.94
91 Mel Parnell 1949 BRI 20 17 .541 3.35 40 40 0 18 5 0 0 322.1 134 133 1.350 12.15 0.47
92 Chris Sale 2015 SPS 11 12 .478 3.36 33 33 0 0 0 0 0 198.1 59 288 1.210 10.89 0.95
93 Jesse Haines 1927 IMG 16 19 .457 3.36 49 36 13 14 1 4 67 297.1 92 92 1.291 11.62 0.39
94 Bert Blyleven 1977 MIT 15 12 .556 3.37 36 36 0 5 1 0 0 235 96 207 1.230 11.07 1.30
95 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
96 Jim Palmer 1977 IMG 16 14 .533 3.38 38 38 0 6 0 0 0 288 107 205 1.205 10.84 0.97
97 Michael Wacha 2015 DIN 8 9 .471 3.38 30 30 0 0 0 0 0 178.1 52 130 1.183 10.65 0.71
98 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
99 Freddie Fitzsimmons 1927 PBP 11 11 .500 3.40 51 27 24 4 1 8 67 230.1 78 81 1.520 13.68 0.27
100 Andy Messersmith 1974 DSP 12 11 .522 3.40 27 27 0 8 1 0 0 198.1 70 147 1.175 10.57 1.00