For single seasons, From 1978 to 2008, (requiring L≥19), sorted by smallest Hp9

  Cnt Player             **H/9**   L Year Age Tm  Lg  G   GS CG SHO GF  W  W-L% SV   IP   H   R   ER  BB  SO   ERA  ERA  HR  BF   AB  2B 3B IBB HBP  SH  SF GDP  SB CS Pk BK WP   BA   OBP   SLG   OPS  OPS   Pit  Str
 ----+-----------------+---------+--+----+---+---+--+---+---+--+---+--+--+-----+--+-----+---+---+---+---+---+------+----+--+----+----+--+--+---+---+---+---+---+---+--+--+--+--+-----+-----+-----+-----+----+----+---- 
    1 Jose DeLeon          7.64   19 1985  24 PIT NL  31  25  1   0  5  2  .095  3 162.2 138  93  85  89 149   4.70   77 15  700  597 20  5   3   3   7   4   7  22 12  0  1  7  .231  .332  .357  .689   99           
    2 Phil Niekro          8.18   20 1979  40 ATL NL  44  44 23   1  0 21  .512  0 342   311 160 129 113 208   3.39  120 41 1436 1290 50  6   8  11  14   7  25  40 11  2  4 18  .241  .306  .384  .690   88           
    3 Jose DeLeon          8.28   19 1990  29 STL NL  32  32  0   0  0  7  .269  0 182.2 168  96  90  86 164   4.43   86 15  793  683 30  5   9   5  11   8   8  20 12  0  0  5  .246  .331  .370  .701   98           
    4 Tim Leary            8.74   19 1990  31 NYY AL  31  31  6   1  0  9  .321  0 208   202 105  95  78 138   4.11   97 18  881  785 39  1   1   7   7   4  20  18  9  6  0 23  .257  .328  .378  .706   97           
    5 Brian Kingman        8.90   20 1980  25 OAK AL  32  30 10   1  0  8  .286  0 211.1 209 105  90  82 116   3.83   98 21  912  817 29  5   5   4   5   3  12  12 11  3  0  6  .256  .326  .381  .707   99           
    6 Rick Wise            9.61   19 1978  32 CLE AL  33  31  9   1  1  9  .321  0 211.2 226 116 102  59 106   4.34   87 22  903  823 24  4   3   3   8  10  14  28 12  1  0  1  .275  .322  .394  .716  101           
    7 Kirk McCaskill       9.78   19 1991  30 CAL AL  30  30  1   0  0 10  .345  0 177.2 193  93  84  66  71   4.26   96 19  762  681 36  5   1   3   6   6  22   8  6  1  0  6  .283  .347  .435  .782  116           
    8 Albie Lopez          9.89   19 2001  29 TOT ML  33  33  3   3  0  9  .321  0 205.2 226 123 110  75 136   4.81   95 26  896  804 48  2   3   4   8   5  20  20  9  3  1  2  .281  .343  .443  .786  105 3187 2017 
    9 Matt Young           9.98   19 1985  26 SEA AL  37  35  5   2  2 12  .387  1 218.1 242 135 119  76 136   4.91   85 23  951  858 34  6   3   7   7   3  19  13 16  1  2  6  .282  .344  .416  .760  107           
   10 Mike Moore          10.44   19 1987  27 SEA AL  33  33 12   0  0  9  .321  0 231   268 145 121  84 115   4.71  101 29 1020  919 54  7   3   0   9   8  30   8  5  3  2  4  .292  .348  .460  .808  107           
   11 Jeremy Bonderman    10.72   19 2003  20 DET AL  33  28  0   0  0  6  .240  0 162   193 118 100  58 108   5.56   77 23  727  656 44  5   2   4   3   6  17  25  9  1  2 12  .294  .352  .482  .834  125 2563 1577 
   12 Mike Maroth         10.75   21 2003  25 DET AL  33  33  1   0  0  9  .300  0 193.1 231 131 123  50  87   5.73   75 34  847  773 37  9   2   8   8   8  18   8 11  7  0  7  .299  .344  .502  .846  127 3119 1901 
   13 Scott Erickson      10.95   19 1993  25 MIN AL  34  34  1   0  0  8  .296  0 218.2 266 138 126  71 116   5.19   84 17  976  872 43  8   1  10  10  13  26  27  4  1  0  5  .305  .359  .431  .790  111           
   14 Omar Daal           11.21   19 2000  28 TOT NL  32  28  0   0  1  4  .174  0 167   208 128 114  72  96   6.14   77 26  775  682 42  3  11   9   6   6  16   2  4  3  2  0  .305  .376  .490  .866  120 2734 1628 
   15 Darrell May         11.32   19 2004  32 KCR AL  31  31  3   1  0  9  .321  0 186   234 130 116  55 120   5.61   85 38  832  764 58  9   4   2   1   9  14  17  9  4  0  2  .306  .351  .555  .906  130 2996 1897 
   16 Bobby Jones         11.54   19 2001  31 SDP NL  33  33  1   0  0  8  .296  0 195   250 137 111  38 113   5.12   78 37  880  820 42  6   6   4   9   9   9  22  8  1  0  3  .305  .335  .506  .841  128 3116 2083 

Seasons/Careers found: 16.

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