Spanning Multiple Seasons or entire Careers, From 1871 to 2008, (requiring ERAp≤99, DECISION≥300, and DECISION≥0), sorted by greatest WLperc

  Cnt Player             **W-L%** ERA  Dec From  To   Ages   G   GS  CG SHO  GF  W   L   SV   IP     H    R   ER   BB   SO    ERA   HR   BF  IBB HBP  BK  WP Teams
 ----+-----------------+---------+----+---+----+----+-----+----+---+---+---+---+---+---+---+------+----+----+----+----+----+------+---+-----+---+---+---+---+----------- 
    1 Lew Burdette         .585     98 347 1950 1967 23-40  626 373 158  33 128 203 144  31 3067.1 3186 1400 1246  628 1074   3.66 289 12745  63  56   7  23 NYY-BSN-MLN-TOT-CAL 
    2 Bob Forsch           .553     98 304 1974 1989 24-39  498 422  67  19  19 168 136   3 2794.2 2777 1319 1169  832 1133   3.76 216 11715  84  45  18  93 STL-TOT-HOU 
    3 Rick Sutcliffe       .552     97 310 1976 1994 20-38  457 392  72  18  30 171 139   6 2697.2 2662 1324 1223 1081 1679   4.08 236 11548  75  46  38 100 LAD-CLE-TOT-CHC-BAL-STL 
    4 John Burkett         .550     99 302 1987 2003 22-38  445 423  21   6   8 166 136   1 2648.1 2866 1374 1268  700 1766   4.31 257 11324  59  90   8  33 SFG-FLA-TOT-TEX-ATL-BOS 
    5 Mike Torrez          .536     98 345 1967 1984 20-37  494 458 117  15  13 185 160   0 3044   3043 1501 1340 1371 1404   3.96 223 13179  84  59  11 103 STL-TOT-MON-BAL-OAK-BOS-NYM 
    6 Joe Niekro           .520     97 425 1967 1988 22-43  702 500 107  29  93 221 204  16 3584   3466 1620 1431 1262 1747   3.59 276 15166  71  65   8 172 CHC-TOT-DET-ATL-HOU-NYY-MIN 
    7 Jim Slaton           .489     94 309 1971 1986 21-36  496 360  86  22  71 151 158  14 2683.2 2773 1335 1202 1004 1191   4.03 277 11535  65  48   6  97 MIL-DET-CAL-TOT 
    8 Bob Knepper          .485     95 301 1976 1990 22-36  445 413  78  30  10 146 155   1 2708   2737 1258 1106  857 1473   3.68 228 11488  78  47  13  60 SFG-HOU-TOT-SFG 
    9 Red Donahue          .484     96 339 1893 1906 20-33  367 340 312  25  23 164 175   3 2966.1 3376 1638 1191  689  787   3.61  61  4871     101   1  27 NYG-STL-PHI-SLB-TOT-CLE-DET 
   10 Mike Moore           .478     95 337 1982 1995 22-35  450 440  79  16   6 161 176   2 2831.2 2858 1516 1381 1156 1667   4.39 291 12203  61  55  11 135 SEA-OAK-DET 
   11 Steve Trachsel       .474     99 302 1993 2008 22-37  420 417  20   7   1 143 159   0 2501   2587 1327 1219  943 1591   4.39 348 10799  63  52  16  64 CHC-TOT-NYM-BAL 
   12 Kevin Gross          .473     95 300 1983 1997 22-36  474 368  42  14  38 142 158   5 2487.2 2519 1245 1137  986 1727   4.11 230 10791  76  79  35  53 PHI-MON-LAD-TEX-ANA 
   13 Bert Cunningham      .460     91 309 1887 1901 21-35  341 310 286   4  28 142 167   2 2726.2 3063 1938 1279 1064  718   4.22  61  5639      66   5  99 BRO-BAL-TOT-LOU-CHC 
   14 Jim Clancy           .456     98 307 1977 1991 21-35  472 381  74  11  38 140 167  10 2517.1 2513 1304 1182  947 1422   4.23 244 10772  45  32   4 101 TOR-HOU-TOT 
   15 Chick Fraser         .452     92 387 1896 1909 22-35  433 389 342  22  42 175 212   6 3356   3460 1995 1371 1332 1098   3.68  69  7392     177   3 135 LOU-TOT-PHI-PHA-BSN-CIN-CHC 
   16 Mike Morgan          .431     97 327 1978 2002 18-42  597 411  46  10  56 141 186   8 2772.1 2943 1431 1303  938 1403   4.23 270 11872  77  73   5 105 OAK-NYY-TOR-SEA-BAL-LAD-CHC-TOT-CIN-TEX-ARI 
   17 Tom Hughes           .428     93 306 1900 1913 21-34  399 313 227  25  73 131 175  16 2644   2610 1291  909  853 1368   3.09  51  7072     104   3  83 CHC-TOT-BOS-WSH 

Seasons/Careers found: 17.

 Photos from the George Grantham Bain Collection at the Library of Congress.