Wins
239
Indexed tournament wins
Player record
Jon Hiratsuka
Losses
191
Indexed tournament losses
Matches
430
Decisive results
Win rate
55.6%
Across indexed matches
Peak rating
1,534
Highest rating in the available history.
Biggest upset
Lozitskiy, Igor
2012 Potomac Fall Open · Nov 11, 2012 · +352 rating
Open →Biggest loss
Zhang, Kevin
2014 JOOLA North American Teams Championships · Nov 30, 2014 · -720 rating
Open →Most frequent opponent
Beaulieu, Alexander
5 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
58 tournament appearances · synced Aug 8, 2026, 2:33 PM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Mar 22, 2009 | Club JOOLA March OpenTournament · View matches | 1,493 | 1,484 | -9 | 7W / 2L |
| Dec 14, 2008 | Club Joola December OpenTournament · View matches | 1,516 | 1,493 | -23+0 / -23 | 1W / 2L |
| Jan 27, 2008 | Club Joola January OpenTournament · View matches | 1,422 | 1,516 | +94 | 8W / 3L |
| May 13, 2007 | Potomac 2007 Spring OpenTournament · View matches | 1,456 | 1,422 | -34+23 / -57 | 6W / 3L |
| May 21, 2006 | 2006 NVTTC Spring OpenTournament · View matches | 1,417 | 1,456 | +39 | 5W / 3L |
| Nov 21, 1999 | 1999 Potomac Fall OpenTournament · View matches | 1,422 | 1,417 | -5 | 2W / 1L |
| Nov 22, 1998 | Potomac Fall OpenTournament · View matches | 1,469 | 1,422 | -47+0 / -47 | 4W / 3L |
| May 17, 1998 | Potomac Spring OpenTournament · View matches | 1,444 | 1,469 | +25+31 / -6 | 8W / 1L |
| Mar 20, 1998 | 1998 Eastern OpenTournament · View matches | 1,451 | 1,444 | -7+5 / -12 | 2W / 3L |
| Feb 15, 1998 | MDTTC February OpenTournament · View matches | 1,443 | 1,451 | +8 | 5W / 0L |
| Nov 23, 1997 | Potomac Fall OpenTournament · View matches | 1,496 | 1,443 | -53 | 3W / 3L |
| Nov 24, 1996 | Potomac Fall OpenTournament · View matches | 1,534 | 1,496 | -38+10 / -48 | 1W / 3L |
| Apr 28, 1996 | Potomac Spring OpenTournament · View matches | 1,426 | 1,534 | +108 | 6W / 2L |
| Apr 14, 1996 | NTTC April OpenTournament · View matches | 1,419 | 1,426 | +7+14 / -7 | 6W / 1L |
| Mar 17, 1996 | NTTC March OpenTournament · View matches | 1,404 | 1,419 | +15 | 4W / 0L |
| Nov 19, 1995 | Potomac Fall OpenTournament · View matches | 1,387 | 1,404 | +17+20 / -3 | 2W / 2L |
| Apr 16, 1995 | Potomac Spring OpenTournament · View matches | 1,483 | 1,387 | -96+3 / -99 | 1W / 5L |
| Feb 27, 1994 | NTTC February OpenTournament · View matches | 1,495 | 1,483 | -12+0 / -12 | 0W / 3L |
41–58 of 58
PreviousPage 3 of 3