Wins
605
Indexed tournament wins
Player record
Zajac, Peter
Losses
315
Indexed tournament losses
Matches
920
Decisive results
Win rate
65.8%
Across indexed matches
Peak rating
2,419
Highest rating in the available history.
Biggest upset
Eduard Hamamjian
US Nationals · Dec 18, 1994 · +236 rating
Open →Biggest loss
Boissonneault, Anne
1996 US Open · Jul 7, 1996 · -622 rating
Open →Most frequent opponent
Gabriel, Freddie
37 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
96 tournament appearances · synced Aug 8, 2026, 2:14 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| May 27, 2007 | Golden State OpenTournament · View matches | 2,359 | 2,363 | +4+12 / -8 | 7W / 1L |
| May 12, 2007 | Sacramento Spring OpenTournament · View matches | 2,360 | 2,359 | -1+3 / -4 | 6W / 1L |
| Apr 15, 2007 | Butterfly Northern CA Spring OTournament · View matches | 2,322 | 2,360 | +38+45 / -7 | 5W / 2L |
| Mar 5, 2006 | U.S. Open Teams TT ChampionshipTournament · View matches | 2,374 | 2,322 | -52+12 / -64 | 6W / 3L |
| Feb 19, 2006 | 2006 Western OpenTournament · View matches | 2,419 | 2,374 | -45+0 / -45 | 0W / 4L |
| Feb 11, 2006 | Sacramento Winter OpenTournament · View matches | 2,419 | 2,419 | 0+5 / -5 | 3W / 1L |
| Dec 17, 2005 | 2005 US Nationals ChampionshipTournament · View matches · USATT readjusted 2,309 → 2,380 | 2,309 | 2,419 | +39+49 / -10 | 8W / 2L |
| Nov 5, 2005 | San Diego OpenTournament · View matches | 2,345 | 2,309 | -36+2 / -38 | 1W / 4L |
| Oct 29, 2005 | Sacramento Fall OpenTournament · View matches | 2,371 | 2,345 | -26+6 / -32 | 5W / 2L |
| Oct 16, 2005 | Western OpenTournament · View matches | 2,384 | 2,371 | -13+18 / -31 | 7W / 4L |
| Sep 17, 2005 | Biggest Little Reno-Sparks OpeTournament · View matches · USATT readjusted 2,286 → 2,347 | 2,286 | 2,384 | +37+44 / -7 | 8W / 1L |
| Aug 21, 2005 | San Francisco Summer OpenTournament · View matches | 2,256 | 2,286 | +30+34 / -4 | 5W / 2L |
| Aug 6, 2005 | Sacramento Summer OpenTournament · View matches | 2,255 | 2,256 | +1+5 / -4 | 4W / 2L |
| Jun 12, 2005 | Golden State OpenTournament · View matches | 2,265 | 2,255 | -10+23 / -33 | 9W / 2L |
| Apr 30, 2005 | Sacramento Spring OpenTournament · View matches | 2,275 | 2,265 | -10+0 / -10 | 1W / 1L |
| Feb 26, 2005 | Sacramento Winter OpenTournament · View matches | 2,300 | 2,275 | -25+5 / -30 | 4W / 1L |
| Dec 18, 2004 | 2004 USA Nationals ChampionshipTournament · View matches | 2,323 | 2,300 | -23+20 / -43 | 8W / 3L |
| Nov 28, 2004 | 2004 N. American Teams Open TTTournament · View matches | 2,194 | 2,323 | +129 | 17W / 4L |
| May 30, 2004 | Golden State OpenTournament · View matches | 2,282 | 2,194 | -88+2 / -90 | 3W / 3L |
| May 27, 2001 | Golden State Open - CATournament · View matches | 2,287 | 2,282 | -5+11 / -16 | 7W / 3L |
1–20 of 96
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