Top discoverers by number of PRPs
| Rank | Discoverer | Score | | 1 | Lelio R Paula | 14260 |
| 2 | Syoichiro Yamada | 13745 |
| 3 | Milton L. Brown | 3225 |
| 4 | Donovan Johnson | 3117 |
| 5 | Patrick De Geest | 2926 |
| 6 | Kimmo Herranen | 2745 |
| 7 | Bernardo Boncompagni | 1499 |
| 8 | Mike Oakes | 1385 |
| 9 | Henri Lifchitz | 909 |
| 10 | Andrey Kulsha | 798 |
| 11 | Jason Earls | 633 |
| 12 | Jim Fougeron | 580 |
| 13 | Jens K. Andersen | 573 |
| 14 | David Broadhurst | 509 |
| 15 | Anatoly F. Selevich | 473 |
| 16 | Yves Minet | 451 |
| 17 | Joe McLean | 410 |
| 18 | Robert Smith | 373 |
| 19 | Paul Underwood | 337 |
| 20 | Maksym Voznyy | 200 |
| 21 | Gary Chaffey | 162 |
| 22 | Ryan C Weaving | 158 |
| 23 | Gary Barnes | 157 |
| 24 | Paul Bourdelais | 148 |
| 25 | Erik Branger | 136 |
| 26 | Markus Hiltbrunner | 123 |
| 27 | Kevin Acres | 98 |
| 28 | Harald Ritter | 94 |
| 29 | Daniel Heuer | 81 |
| 30 | Serge Batalov | 79 |
| 30 | T. D. Noe | 79 |
| 32 | Wayne Halsdorf | 77 |
| 33 | Michael Porter | 75 |
| 34 | Richard Fischer | 73 |
| 35 | Paul Leyland | 71 |
| 36 | D.Broadhurst and W.Edgington | 48 |
| 37 | Theodore Burton | 45 |
| 38 | Eric W. Weisstein | 43 |
| 39 | Jean-Louis Charton | 41 |
| 40 | Mark Rodenkirch | 39 |
| 40 | Patrick Schmeer | 39 |
| 42 | Thomas Masser | 36 |
| 43 | Renaud Lifchitz | 34 |
| 44 | Cletus Emmanuel | 30 |
| 45 | Harvey Dubner | 28 |
| 45 | Matt Stath | 28 |
| 47 | Greg Childers | 24 |
| 47 | Faysal YAtim | 24 |
| 49 | Ray Chandler | 23 |
| 50 | Wojciech Florek | 22 |
| 51 | Arkadiusz Wesolowski | 19 |
| 51 | Joel Levy | 19 |
| 51 | Rob Binnekamp | 19 |
| 54 | Ken Davis | 18 |
| 54 | Predrag Minovic | 18 |
| 56 | Bouk de Water | 17 |
| 57 | Paul Schmidt | 16 |
| 58 | Marcin Lipinski | 11 |
| 59 | Raffi Chaglassian | 10 |
| 60 | Alexander Kuzmich | 9 |
| 60 | Darren Bedwell | 9 |
| 60 | Kamil Duszenko | 9 |
| 60 | D. Broadhurst & B. de Water | 9 |
| 64 | M. Frind & P. Underwood | 8 |
| 64 | Leonid Muraviov | 8 |
| 64 | Anton Vrba | 8 |
| 67 | H.&R. Lifchitz | 7 |
| 67 | Jean Penné | 7 |
| 69 | Walter Nissen | 6 |
| 69 | Dirk Augustin | 6 |
| 71 | Enzo Doria | 5 |
| 71 | Payam Samidoost | 5 |
| 71 | Tom Wu | 5 |
| 71 | Pierre CAMI | 5 |
| 75 | Décio Gazzoni Filho | 4 |
| 75 | Makoto Kamada | 4 |
| 75 | V.M.Ulyanov | 4 |
| 78 | Ben Maloney / Five or Bust | 3 |
| 78 | Phil Moore | 3 |
| 78 | Jiong Sun | 3 |
| 78 | Borys Jaworski | 3 |
| 78 | Richard McIntosh | 3 |
| 78 | Hans Havermann | 3 |
| 78 | Hugo Platzer | 3 |
| 78 | D. Gazzoni Filho & Lucas Teixeira | 3 |
| 78 | Meng-Hsuan Wu | 3 |
| 87 | Steven Harvey | 2 |
| 87 | Ed Pegg | 2 |
| 87 | Ray Ballinger | 2 |
| 87 | Peter Liaskovsky | 2 |
| 87 | Peter Lesala | 2 |
| 87 | Andy Steward | 2 |
| 87 | Andy Klingeleers | 2 |
| 87 | Ananda Tallur & Jean-Louis Charton | 2 |
| 87 | Michael Kwok | 2 |
| 87 | Paul Jobling | 2 |
| 87 | Lewis,Jobling,Nash | 2 |
| 87 | Matthew Peets | 2 |
| 87 | J. Alm & D. Johnson | 2 |
| 100 | Lew Baxter | 1 |
| 100 | Sander Hoogendoorn | 1 |
| 100 | William Garnett | 1 |
| 100 | Cyclamen Persicum | 1 |
| 100 | Tony Reix / Diepeveen-Underwood -Reix | 1 |
| 100 | Tetsuya Kobayashi | 1 |
| 100 | Vincent Diepeveen | 1 |
| 100 | Dudley Fox | 1 |
| 100 | Paul Bourdelais, Harvey Dubner | 1 |
| 100 | Giovanni La Barbera | 1 |
| 100 | Engracio Esmenda / Five or Bust | 1 |
| 100 | Guido Smetrijns | 1 |
| 100 | Göran Hemdal | 1 |
| 100 | Hugo Pfoertner | 1 |
| 100 | Nuutti Kuosa | 1 |
| 100 | Phil Carmody | 1 |
| 100 | Polly T. Wang | 1 |
| 100 | Richard FitzHugh | 1 |
| 100 | D.Broadhurst and N.Mandela | 1 |
| 100 | Markus Tervooren | 1 |
| 100 | Dmitry Kamenetsky | 1 |
| 100 | Ed T. Prothro | 1 |
| 100 | Michael Eaton | 1 |
| 100 | D.Broadhurst and M.Kamada | 1 |
| |
Top discoverers by production score*
| Rank | Discoverer | Score | | 1 | Engracio Esmenda / Five or Bust | 47.98 |
| 2 | Ben Maloney / Five or Bust | 47.76 |
| 3 | Tony Reix / Diepeveen-Underwood -Reix | 47.23 |
| 4 | Paul Bourdelais | 45.69 |
| 5 | Jean-Louis Charton | 45.47 |
| 6 | Henri Lifchitz | 45.28 |
| 7 | Borys Jaworski | 44.65 |
| 8 | Lelio R Paula | 44.27 |
| 9 | Phil Moore | 43.94 |
| 10 | Mike Oakes | 43.88 |
| 11 | Serge Batalov | 43.47 |
| 12 | Syoichiro Yamada | 43.31 |
| 13 | Donovan Johnson | 43.14 |
| 14 | Patrick De Geest | 42.99 |
| 15 | Vincent Diepeveen | 42.90 |
| 16 | Renaud Lifchitz | 42.73 |
| 17 | Maksym Voznyy | 42.69 |
| 18 | Jens K. Andersen | 42.43 |
| 19 | Yves Minet | 42.42 |
| 19 | Milton L. Brown | 42.42 |
| 21 | Anatoly F. Selevich | 42.37 |
| 22 | Andy Steward | 42.07 |
| 23 | Theodore Burton | 41.87 |
| 24 | Eric W. Weisstein | 41.83 |
| 25 | Kimmo Herranen | 41.78 |
| 26 | Jason Earls | 41.45 |
| 27 | Cletus Emmanuel | 41.37 |
| 28 | Gary Barnes | 41.20 |
| 29 | Payam Samidoost | 41.12 |
| 30 | Andrey Kulsha | 41.09 |
| 30 | Jean Penné | 41.09 |
| 32 | M. Frind & P. Underwood | 41.07 |
| 33 | T. D. Noe | 41.01 |
| 34 | Faysal YAtim | 40.93 |
| 35 | David Broadhurst | 40.80 |
| 36 | Bernardo Boncompagni | 40.70 |
| 37 | Erik Branger | 40.59 |
| 38 | Darren Bedwell | 40.57 |
| 39 | Wayne Halsdorf | 40.55 |
| 39 | H.&R. Lifchitz | 40.55 |
| 41 | Paul Underwood | 40.47 |
| 42 | Joe McLean | 40.15 |
| 43 | Jim Fougeron | 39.99 |
| 44 | Michael Porter | 39.90 |
| 44 | Daniel Heuer | 39.90 |
| 46 | Paul Bourdelais, Harvey Dubner | 39.83 |
| 47 | Ray Chandler | 39.69 |
| 48 | Robert Smith | 39.67 |
| 49 | D. Gazzoni Filho & Lucas Teixeira | 39.61 |
| 50 | Wojciech Florek | 39.60 |
| 50 | Predrag Minovic | 39.60 |
| 52 | Ryan C Weaving | 39.53 |
| 53 | Kevin Acres | 39.42 |
| 54 | Dirk Augustin | 39.29 |
| 55 | Markus Tervooren | 39.15 |
| 56 | Lew Baxter | 39.11 |
| 57 | Harald Ritter | 38.81 |
| 58 | Richard Fischer | 38.63 |
| 59 | Patrick Schmeer | 38.62 |
| 60 | Ananda Tallur & Jean-Louis Charton | 38.57 |
| 61 | Gary Chaffey | 38.45 |
| 62 | Thomas Masser | 38.41 |
| 63 | Décio Gazzoni Filho | 38.37 |
| 64 | Peter Lesala | 38.24 |
| 65 | Pierre CAMI | 38.19 |
| 66 | D.Broadhurst and W.Edgington | 38.07 |
| 67 | Phil Carmody | 38.06 |
| 68 | Jiong Sun | 38.02 |
| 69 | Tom Wu | 37.97 |
| 70 | Makoto Kamada | 37.94 |
| 71 | Bouk de Water | 37.79 |
| 72 | Kamil Duszenko | 37.76 |
| 73 | Harvey Dubner | 37.75 |
| 74 | Paul Leyland | 37.73 |
| 75 | Mark Rodenkirch | 37.61 |
| 76 | Markus Hiltbrunner | 37.50 |
| 77 | Joel Levy | 37.49 |
| 78 | Arkadiusz Wesolowski | 37.41 |
| 79 | Meng-Hsuan Wu | 37.27 |
| 80 | Matt Stath | 37.26 |
| 81 | Greg Childers | 37.25 |
| 82 | Raffi Chaglassian | 37.11 |
| 83 | Marcin Lipinski | 37.05 |
| 84 | Richard McIntosh | 37.02 |
| 85 | Hans Havermann | 36.97 |
| 86 | Rob Binnekamp | 36.95 |
| 87 | Lewis,Jobling,Nash | 36.60 |
| 88 | Ken Davis | 36.42 |
| 89 | D.Broadhurst and N.Mandela | 36.24 |
| 90 | D.Broadhurst and M.Kamada | 36.22 |
| 91 | D. Broadhurst & B. de Water | 36.20 |
| 92 | Steven Harvey | 36.04 |
| 93 | Alexander Kuzmich | 35.89 |
| 94 | Anton Vrba | 35.69 |
| 95 | Dudley Fox | 35.53 |
| 96 | William Garnett | 35.29 |
| 97 | Paul Schmidt | 35.24 |
| 98 | Walter Nissen | 35.20 |
| 99 | Peter Liaskovsky | 35.18 |
| 100 | Ray Ballinger | 35.15 |
| 101 | Enzo Doria | 35.14 |
| 102 | Matthew Peets | 35.10 |
| 103 | Hugo Platzer | 34.80 |
| 104 | V.M.Ulyanov | 34.78 |
| 104 | Leonid Muraviov | 34.78 |
| 106 | Cyclamen Persicum | 34.54 |
| 107 | Ed Pegg | 34.40 |
| 108 | Paul Jobling | 34.35 |
| 109 | Richard FitzHugh | 34.15 |
| 110 | Michael Kwok | 34.14 |
| 111 | Ed T. Prothro | 33.94 |
| 112 | Andy Klingeleers | 33.87 |
| 113 | Nuutti Kuosa | 33.79 |
| 114 | Michael Eaton | 33.77 |
| 115 | Tetsuya Kobayashi | 33.61 |
| 116 | J. Alm & D. Johnson | 33.56 |
| 117 | Göran Hemdal | 33.29 |
| 118 | Hugo Pfoertner | 33.23 |
| 119 | Giovanni La Barbera | 33.17 |
| 120 | Polly T. Wang | 32.82 |
| 121 | Guido Smetrijns | 32.76 |
| 122 | Dmitry Kamenetsky | 32.54 |
| 123 | Sander Hoogendoorn | 32.50 |
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