Worst single season ERA 1901-2009

generated by a site user

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User's Notes:
minimum 20 IP
Rk Player ERA ERA IP Year Age Tm Lg G GS CG SHO GF W L W-L% SV H R ER BB SO ERA HR BF AB 2B 3B IBB HBP SH SF GDP SB CS PO BK WP BA OBP SLG OPS OPS Pit Str
1 Orel Hershiser 13.14 24.2 2000 41 LAD NL 10 6 0 0 1 1 5 .167 0 42 36 36 14 13 33 5 136 108 8 0 1 11 0 3 4 5 0 0 0 2 .389 .493 .602 1.094 191 513 286
2 Stu Flythe 13.04 39.1 1936 24 PHA AL 17 3 0 0 9 0 0 0 49 63 57 61 14 39 4 229 3 1 16
3 Albie Lopez 12.71 22.2 2003 31 KCR AL 15 0 0 0 3 4 2 .667 0 41 32 32 17 15 39 7 125 107 12 0 1 0 1 0 0 2 0 0 0 3 .383 .468 .692 1.159 193 454 265
4 Ed Gallagher 12.55 23.2 1932 21 BOS AL 9 3 0 0 4 0 3 .000 0 30 36 33 28 6 36 3 124 0 0 3
5 Jim Brower 12.15 20.0 2006 33 TOT ML 18 0 0 0 4 0 1 .000 0 32 27 27 14 14 36 2 106 86 10 1 1 5 0 1 3 1 1 0 0 2 .372 .481 .581 1.063 181 400 217
6 Rick Langford 12.15 20.0 1983 31 OAK AL 7 7 0 0 0 0 4 .000 0 43 28 27 10 2 32 4 112 96 8 1 1 2 1 3 4 1 0 0 0 0 .448 .495 .677 1.173 229
7 Whitey Wilshere 12.05 21.2 1934 21 PHA AL 9 2 0 0 2 0 1 .000 0 39 30 29 15 19 36 0 117 1 0 1
8 Paul Giel 12.00 21.0 1961 29 TOT AL 13 0 0 0 4 1 0 1.000 0 30 34 28 20 15 35 7 115 93 8 0 1 0 1 1 0 0 2 0 0 0 .323 .439 .634 1.073 186
9 Paul Abbott 11.96 26.1 2002 34 SEA AL 7 5 0 0 1 1 3 .250 0 40 36 35 20 22 35 5 137 114 10 0 0 1 1 1 0 4 1 0 0 2 .351 .449 .570 1.019 172 539 316
10 Clint Sodowsky 11.84 24.1 1996 23 DET AL 7 7 0 0 0 1 3 .250 0 40 34 32 20 9 43 5 132 108 5 0 0 3 1 0 4 0 0 0 0 3 .370 .481 .556 1.036 161
11 Bob Miller 11.69 22.1 1958 32 PHI NL 17 0 0 0 4 1 1 .500 0 36 30 29 9 9 34 7 113 98 8 3 2 0 1 3 0 1 2 0 0 1 .367 .409 .724 1.134 204
12 Frank LaCorte 11.68 37.0 1977 25 ATL NL 14 7 0 0 1 1 8 .111 0 67 51 48 29 28 38 10 205 170 13 2 1 2 3 1 1 9 2 0 0 0 .394 .485 .671 1.156 200
13 Jess Dobernic 11.57 23.1 1949 31 TOT NL 18 0 0 0 7 0 0 0 37 31 30 20 6 36 9 126 0 0 2
14 Dennis Stark 11.42 26.0 2004 29 COL NL 6 6 0 0 0 0 5 .000 0 53 43 33 18 10 43 9 150 124 10 1 3 0 4 4 1 5 0 0 0 1 .427 .486 .742 1.228 202 530 298
15 Dave Hamilton 11.40 30.0 1980 32 OAK AL 21 1 0 0 3 0 3 .000 0 44 39 38 28 23 33 6 164 128 3 1 2 3 3 2 1 4 2 0 1 0 .344 .466 .523 .989 177
16 Scott Kamieniecki 11.12 22.2 1996 32 NYY AL 7 5 0 0 0 1 2 .333 0 36 30 28 19 15 45 6 120 99 8 0 1 2 0 0 2 1 2 1 0 1 .364 .475 .626 1.101 175
17 Bill Connelly 11.07 20.1 1953 28 NYG NL 8 2 0 0 4 0 1 .000 0 33 26 25 17 11 39 4 106 0 0 1
18 Ryan Bowen 10.96 33.2 1992 24 HOU NL 11 9 0 0 2 0 7 .000 0 48 43 41 30 22 30 8 179 144 9 1 3 2 3 0 2 5 3 1 0 5 .333 .455 .576 1.031 205
19 Carl Doyle 10.94 38.2 1936 23 PHA AL 8 6 1 0 2 0 3 .000 0 66 53 47 29 12 47 4 214 5 2 7
20 Mike Lincoln 10.89 20.2 2000 25 MIN AL 8 4 0 0 1 0 3 .000 0 36 25 25 13 15 47 10 109 94 5 0 0 2 0 0 4 1 1 0 0 1 .383 .468 .755 1.223 200 394 234
21 Tom Mastny 10.80 20.0 2008 27 CLE AL 14 1 0 0 4 2 2 .500 0 28 24 24 11 19 40 6 100 88 6 0 2 0 0 1 0 1 0 0 0 0 .318 .390 .591 .981 159 381 224
22 Todd Frohwirth 10.80 26.2 1994 31 BOS AL 22 0 0 0 8 0 3 .000 1 40 36 32 17 13 47 3 141 118 7 1 2 2 4 0 3 3 0 0 0 1 .339 .431 .492 .922 130
23 Ray Shore 10.80 23.1 1949 28 SLB AL 13 0 0 0 4 0 1 .000 0 27 30 28 31 13 42 3 125 2 0 4
24 Mel Wright 10.71 21.0 1961 33 CHC NL 11 0 0 0 5 0 1 .000 0 42 26 25 4 6 39 3 107 101 4 3 0 0 2 0 2 2 1 0 0 1 .416 .438 .604 1.042 179
25 Roy Halladay 10.64 67.2 2000 23 TOR AL 19 13 0 0 4 4 7 .364 0 107 87 80 42 44 48 14 349 300 21 3 0 2 2 3 6 3 3 0 1 6 .357 .435 .587 1.022 153 1358 803
Rk Player ERA ERA IP Year Age Tm Lg G GS CG SHO GF W L W-L% SV H R ER BB SO ERA HR BF AB 2B 3B IBB HBP SH SF GDP SB CS PO BK WP BA OBP SLG OPS OPS Pit Str
26 Nelson Greene 10.64 22.0 1925 25 BRO NL 11 0 0 0 8 2 0 1.000 1 45 28 26 7 4 39 4 117 0 1 2
27 Tim Redding 10.57 30.2 2005 27 TOT ML 10 7 0 0 0 0 6 .000 0 44 41 36 17 19 37 7 154 129 9 1 1 2 3 3 4 1 0 0 0 1 .341 .417 .589 1.006 175 572 334
28 Bill Pierro 10.55 29.0 1950 24 PIT NL 12 3 0 0 2 0 2 .000 0 33 34 34 28 13 42 2 146 2 1 3
29 Jaime Navarro 10.53 33.1 2000 33 TOT ML 12 7 0 0 1 0 6 .000 0 54 44 39 23 16 45 9 174 144 15 1 3 1 2 4 4 5 1 0 0 1 .375 .453 .681 1.134 188 657 393
30 Willie Blair 10.50 24.0 2001 35 DET AL 9 4 0 0 1 1 4 .200 0 38 30 28 11 15 41 3 121 103 13 1 3 3 2 2 1 3 0 0 1 0 .369 .437 .602 1.039 178 424 262
31 George Grant 10.50 24.0 1929 26 CLE AL 12 0 0 0 7 0 2 .000 0 41 29 28 23 5 42 2 128 0 0 1
32 John Van Benschot 10.48 22.1 2008 28 PIT NL 9 5 0 0 2 1 3 .250 0 37 28 26 20 21 40 7 125 101 9 0 1 3 1 0 3 4 1 0 1 0 .366 .484 .663 1.147 211 479 276
33 Scott Elarton 10.46 37.0 2007 31 KCR AL 9 9 0 0 0 2 4 .333 0 53 44 43 21 13 44 12 185 157 14 1 0 3 0 3 6 2 0 0 0 2 .338 .418 .669 1.087 181 688 420
34 Victor Santos 10.38 26.0 2002 25 COL NL 24 2 0 0 6 0 4 .000 0 41 30 30 22 25 46 3 140 114 9 0 3 0 3 1 1 4 2 0 0 2 .360 .460 .518 .977 146 564 323
35 Andy Cavazos 10.35 20.0 2007 26 STL NL 17 0 0 0 5 0 0 0 27 27 23 16 15 42 5 104 81 7 1 0 2 2 3 2 0 0 0 0 2 .333 .441 .630 1.071 180 415 240
36 Laurin Pepper 10.35 20.0 1955 24 PIT NL 14 1 0 0 6 0 1 .000 0 30 24 23 25 7 39 5 111 81 1 1 0 2 2 1 3 1 1 0 0 2 .370 .523 .593 1.116 186
37 Ewald Pyle 10.35 20.0 1945 34 TOT NL 10 3 0 0 4 0 1 .000 0 32 27 23 22 12 37 1 112 0 1 0
38 Ray Kremer 10.35 20.0 1933 40 PIT NL 7 0 0 0 0 1 0 1.000 0 36 26 23 9 4 32 2 104 0 0 0
39 Eddie Oropesa 10.30 25.1 2002 30 ARI NL 32 0 0 0 5 2 0 1.000 0 39 30 29 15 18 44 6 132 112 4 1 0 2 2 1 0 0 0 0 1 1 .348 .431 .563 .993 154 471 253
40 John D'Acquisto 10.29 28.0 1975 23 SFG NL 10 6 0 0 3 2 4 .333 0 29 35 32 34 22 37 5 148 110 4 0 0 2 2 0 3 3 2 0 0 5 .264 .445 .436 .882 148
41 Vic Frazier 10.27 23.2 1939 34 CHW AL 10 1 0 0 3 0 1 .000 0 45 27 27 11 7 46 0 124 0 0 1
42 Micah Bowie 10.24 51.0 1999 24 TOT NL 14 11 0 0 2 2 7 .222 0 81 60 58 34 41 44 9 265 223 12 2 2 2 3 3 1 10 3 1 2 4 .363 .447 .556 1.003 162
43 Allen Watson 10.23 22.0 2000 29 NYY AL 17 0 0 0 9 0 0 0 30 25 25 18 20 47 6 115 91 5 0 0 2 2 2 1 3 0 0 0 2 .330 .442 .582 1.025 157 415 226
44 Jack Billingham 10.23 31.2 1980 37 TOT AL 15 4 0 0 3 1 3 .250 0 56 36 36 18 7 41 7 166 140 11 0 1 4 2 2 4 4 1 0 0 1 .400 .476 .629 1.104 193
45 Eric Nolte 10.22 24.2 1991 27 TOT ML 9 6 0 0 2 3 2 .600 0 40 28 28 13 16 37 6 125 109 5 1 0 0 0 3 1 9 1 0 1 1 .367 .424 .596 1.020 189
46 Mark Wohlers 10.18 20.1 1998 28 ATL NL 27 0 0 0 17 0 1 .000 8 18 23 23 33 22 41 2 113 78 7 0 0 1 1 0 0 3 0 0 0 7 .231 .464 .397 .862 136
47 Dave Righetti 10.18 20.1 1994 35 TOT AL 20 0 0 0 7 0 1 .000 0 22 23 23 19 14 46 5 102 79 3 1 0 1 1 2 1 3 1 0 0 0 .278 .416 .532 .947 146
48 Victor Zambrano 10.17 23.0 2007 31 TOT AL 13 4 0 0 2 0 3 .000 0 32 26 26 22 16 45 6 125 94 1 1 2 5 2 2 2 2 1 0 0 2 .340 .480 .564 1.044 172 486 262
49 Bob Miller 10.17 25.2 1962 26 TOT NL 23 0 0 0 15 2 2 .500 1 38 29 29 11 12 40 3 121 103 9 6 0 3 1 3 6 1 1 0 0 1 .369 .433 .660 1.094 198
50 John Van Benschot 10.15 39.0 2007 27 PIT NL 11 9 0 0 1 0 7 .000 0 55 45 44 29 26 43 4 203 164 11 0 1 5 3 2 1 6 1 1 0 1 .335 .445 .476 .921 147 818 468
Rk Player ERA ERA IP Year Age Tm Lg G GS CG SHO GF W L W-L% SV H R ER BB SO ERA HR BF AB 2B 3B IBB HBP SH SF GDP SB CS PO BK WP BA OBP SLG OPS OPS Pit Str
51 Lenny DiNardo 10.12 21.1 2009 29 KCR AL 5 5 0 0 0 0 3 .000 0 41 28 24 15 8 44 2 117 99 4 2 0 1 0 2 4 1 0 0 0 1 .414 .487 .556 1.043 177 456 279
52 Aaron Myette 10.06 48.1 2002 24 TEX AL 15 12 0 0 2 2 5 .286 0 64 57 54 41 48 48 11 249 197 16 4 0 6 1 4 7 3 0 0 0 5 .325 .448 .614 1.062 173 1065 622
53 Gavin Floyd 10.04 26.0 2005 22 PHI NL 7 4 0 0 0 1 2 .333 0 30 31 29 16 17 44 5 127 106 10 1 2 3 1 1 0 2 0 0 0 2 .283 .389 .538 .927 142 466 258
54 Travis Blackley 10.04 26.0 2004 21 SEA AL 6 6 0 0 0 1 3 .250 0 35 31 29 22 16 45 9 134 109 5 0 0 1 1 1 1 1 0 1 1 3 .321 .436 .615 1.051 174 557 312
55 Clayton Andrews 10.02 20.2 2000 22 TOR AL 8 2 0 0 1 1 2 .333 0 34 23 23 9 12 51 6 102 91 7 0 0 0 1 1 1 1 1 0 1 0 .374 .426 .648 1.074 164 368 213
56 Tom Cheney 10.01 29.2 1961 26 TOT ML 11 7 0 0 2 1 3 .250 0 33 35 33 30 20 39 9 149 115 5 1 0 0 1 3 3 2 0 1 0 4 .287 .426 .583 1.008 182
57 Fred Heimach 10.01 29.2 1933 32 BRO NL 10 3 0 0 3 0 1 .000 0 49 33 33 11 7 32 2 148 2 0 0
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Generated 1/16/2010.

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