Ratings
2015-08-22: 2015 Sylvia Petric Memorial(USA)
| ROSE Brian | 42-22 | PARSONS David |
| HAI Jerry | 37-27 | PARSONS David |
| PARSONS David | 59-05 | PLUMMER Eugene |
| CAI Jian | 05-59 | PARSONS David |
| PARSONS David | 40-24 | ROSE Julia |
| ROSE Joseph | 25-39 | PARSONS David |
2012-12-29: 2012 NYC Winter Tournament(USA)
| PARSONS David | 36-28 | CAI Jian |
| PARSONS David | 21-43 | HAI Jerry |
| PARSONS David | 34-30 | PETRIC Vlad |
| PARSONS David | 39-25 | KATZMAN Sharon |
| PARSONS David | 39-25 | BISHOP Robert |
2011-08-27: Clarence Hewlett Memorial(USA)
| KATZMAN Sharon | 28-36 | PARSONS David |
| PARSONS David | 23-41 | CAI Jian |
| PARSONS David | 31-33 | TANIDA Kunihiko |
| PARSONS David | 23-41 | CHITRA Yohanes |
| PETRIC Vlad | 22-42 | PARSONS David |
| PARSONS David | 41-23 | KATZMAN Sharon |
| CAI Jian | 41-23 | PARSONS David |
| TANIDA Kunihiko | 40-24 | PARSONS David |
| CHITRA Yohanes | 28-36 | PARSONS David |
| PARSONS David | 31-32 | PETRIC Vlad |
2004-08-14 → 2004-08-15: US National Championship 2004(USA)
| PARSONS David | won against | BREWER Adam |
| SEELEY Ben | won against | PARSONS David |
| PARSONS David | won against | SIMPSON Jerad |
| PARSONS David | lost to | FANG Randy |
| WILLIAMS Eddie | won against | PARSONS David |
| PARSONS David | won against | SY Steven |
| PARSONS David | lost to | HORNER Rusty |
1997-11-06 → 1997-11-08: WOC 1997 (Athens)(World)
| SCHREIBER Raphael | 32-32 | PARSONS David |
| PARSONS David | 39-25 | HAUGLAND Jan Kristian |
| SUGIYAMA Mitsuaki | 39-25 | PARSONS David |
| PARSONS David | 35-29 | LUND Erik |
| ORTIZ George | 34-30 | PARSONS David |
| PARSONS David | 53-11 | SHIFMAN Leonid |
| PARSONS David | 34-30 | LAZARD Emmanuel |
| SHAMAN David | 33-31 | PARSONS David |
| PARSONS David | 37-27 | TURNER Ian |
| TASTET Marc | 34-30 | PARSONS David |
| FELDBORG Karsten | 22-42 | PARSONS David |
| PARSONS David | 32-32 | SPERANDIO Roberto |
| BRIGHTWELL Graham | 49-15 | PARSONS David |
1996-11-08 → 1996-11-10: WOC 1996 (Tokyo)(World)
| PARSONS David | 38-26 | VECCHI Elisabetta |
| PARSONS David | 31-33 | FELDBORG Karsten |
| PARSONS David | 51-13 | OHYANAGI Masaki |
| PARSONS David | 22-42 | PLOWMAN Guy |
| PARSONS David | 31-33 | TASTET Marc |
| PARSONS David | 38-26 | LUND Erik |
| ALARD Serge | 10-54 | PARSONS David |
| FEINSTEIN Joel | 44-20 | PARSONS David |
| PARSONS David | 35-29 | SHAMAN David |
| SPERANDIO Roberto | 35-29 | PARSONS David |
| PARSONS David | 42-22 | EDMEAD Garry |
| PARSONS David | 32-32 | NICOLET Stephane |
| PARSONS David | 36-28 | DAIX Alain |
1995-11-16 → 1995-11-18: WOC 1995 (Melbourne)(World)
| PARSONS David | 62-02 | HUBBARD Geoff |
| JONES Simon | 17-47 | PARSONS David |
| PARSONS David | 27-37 | FELDBORG Karsten |
| KIKUSHIMA Masao | 12-52 | PARSONS David |
| PARSONS David | 26-38 | YAMANAKA Mami |
| SHAMAN David | 43-21 | PARSONS David |
| TAMENORI Hideshi | 30-34 | PARSONS David |
| PARSONS David | 38-26 | CALENDAR Hugo |
| ORTIZ George | 35-29 | PARSONS David |
| PARSONS David | 26-38 | CASPARD Emmanuel |
| TASTET Marc | 27-37 | PARSONS David |
| PARSONS David | 31-33 | MINE Tatsuya |
| NICOLET Stephane | 18-46 | PARSONS David |
1993-11-05 → 1993-11-07: WOC 1993 (London)(World)
| PARSONS David | 49-15 | CHIGOREV Alexandr |
| TAKAHASHI Tadao | 21-43 | PARSONS David |
| PARSONS David | 21-43 | LEADER Imre |
| VALLUND Torben | 23-41 | PARSONS David |
| PARSONS David | 16-48 | FEINSTEIN Joel |
| ANTONELLI Stefano | 33-31 | PARSONS David |
| SHAMAN David | 37-27 | PARSONS David |
| PARSONS David | 41-23 | PENLOUP Dominique |
| PARSONS David | 23-41 | LUND Erik |
| PEROTTI Mauro | 26-38 | PARSONS David |
| PARSONS David | 34-30 | STEPANOV Oleg |
| JOHNSON Greg | 19-45 | PARSONS David |
| PARSONS David | 19-45 | TAKIZAWA Nobuyuki |