Wins
412
Indexed tournament wins
Player record
Dorn, Jon
Losses
305
Indexed tournament losses
Matches
717
Decisive results
Win rate
57.5%
Across indexed matches
Peak rating
2,027
Highest rating in the available history.
Biggest upset
Wei, Tianhan
2017 Austin Winter Open · Jan 21, 2017 · +538 rating
Open →Biggest loss
Kushnir, Vasyl
US Open · Dec 17, 2019 · -1389 rating
Open →Most frequent opponent
Medcalf, Randall
9 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
70 tournament appearances · synced Aug 8, 2026, 2:16 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Mar 8, 2003 | Austin Spring RRTournament · View matches | 1,870 | 1,874 | +4+13 / -9 | 5W / 3L |
| Feb 16, 2003 | Irving Round RobinTournament · View matches | 1,864 | 1,870 | +6 | 7W / 4L |
| Nov 26, 2000 | No. Amer. Teams Open ChampionshipsTournament · View matches | 1,801 | 1,864 | +63 | 7W / 10L |
| Nov 18, 2000 | Austin Fall Round RobinTournament · View matches | 1,855 | 1,801 | -54 | 4W / 3L |
| Mar 26, 2000 | 2000 Irving Round Robin OpenTournament · View matches | 1,862 | 1,855 | -7+2 / -9 | 5W / 3L |
| Dec 19, 1999 | US NationalsTournament · View matches | 1,896 | 1,862 | -34+18 / -52 | 4W / 6L |
| Nov 28, 1999 | 1999 NA Teams 2Tournament · View matches | 1,885 | 1,896 | +11 | 7W / 11L |
| Sep 18, 1999 | 1999 Bemer Plus Sunbelt Team CTournament · View matches | 1,862 | 1,885 | +23+26 / -3 | 9W / 1L |
| Jun 5, 1999 | HTTC OpenTournament · View matches | 1,924 | 1,862 | -62 | 2W / 3L |
| Nov 29, 1998 | 1998 North American Teams ChampionshipsTournament · View matches | 1,844 | 1,924 | +80 | 5W / 8L |
| Oct 25, 1998 | 1998 Southern OpenTournament · View matches | 1,835 | 1,844 | +9+17 / -8 | 4W / 6L |
| Aug 15, 1998 | 1998 Waco Summer RRTournament · View matches | 1,911 | 1,835 | -76+0 / -76 | 2W / 4L |
| Jul 5, 1998 | 1998 US OpenTournament · View matches | 1,924 | 1,911 | -13+8 / -21 | 3W / 5L |
| Jun 28, 1998 | 1998 Texas OpenTournament · View matches | 1,953 | 1,924 | -29 | 3W / 4L |
| Feb 22, 1998 | 1998 Irving RRTournament · View matches | 1,985 | 1,953 | -32+1 / -33 | 5W / 5L |
| Dec 21, 1997 | US NationalsTournament · View matches · USATT readjusted 1,785 → 1,978 | 1,785 | 1,985 | +7+54 / -47 | 8W / 8L |
| Oct 26, 1997 | 1997 Southern OpenTournament · View matches | 1,790 | 1,785 | -5+0 / -5 | 0W / 5L |
| Sep 28, 1997 | Oded Amitz-Lev Memorial TT ChaTournament · View matches | 1,881 | 1,790 | -91+1 / -92 | 6W / 6L |
| Sep 14, 1997 | Louisana Open, America All-StaTournament · View matches | 1,877 | 1,881 | +4+63 / -59 | 4W / 9L |
| Jun 22, 1997 | Texas OpenTournament · View matches | 1,920 | 1,877 | -43+0 / -43 | 4W / 6L |