Player record

Zajac, Peter

ID 63202CAMaleInactive
Current rating2,363

Wins

605

Indexed tournament wins

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

DateTournamentRating inRating afterPoints changedRecord
Jun 25, 2000Golden Gate Open on the North Tournament · View matches2,3342,287-47+7 / -544W / 3L
Dec 19, 1999US NationalsTournament · View matches2,3532,334-19+19 / -386W / 4L
Oct 16, 1999Sac-Rec October OpenTournament · View matches2,3582,353-5+0 / -53W / 1L
Sep 26, 1999Daly City Mayoral TrophyTournament · View matches2,3582,3580+0 / 04W / 0L
Sep 5, 19991999 Sam Lima MemorialTournament · View matches2,3402,358+185W / 1L
Aug 22, 1999Macy Block Open (formerly Sun Tournament · View matches2,3622,340-224W / 5L
Aug 7, 1999Surf City OpenTournament · View matches2,3662,362-4+1 / -52W / 1L
Jul 4, 19991999 US OpenTournament · View matches2,3322,366+344W / 5L
Apr 11, 19991999 Los Angeles TT Open ChampTournament · View matches2,3472,332-15+2 / -175W / 4L
Apr 4, 1999Spin OpenTournament · View matches2,3932,347-469W / 4L
Feb 21, 19991999 Vietnamese New Year InvitTournament · View matches2,3552,393+38+53 / -155W / 3L
Jan 16, 1999Sac-Rec Winter Open TTTTournament · View matches2,3462,355+96W / 2L
Dec 20, 19981998 USATT NationalsTournament · View matches2,3662,346-206W / 4L
Dec 13, 1998Loma Linda 3rd Annual Stiga WaTournament · View matches2,3352,366+31+33 / -27W / 1L
Nov 29, 19981998 North American Teams ChampionshipsTournament · View matches2,3542,335-197W / 8L
Oct 18, 1998Concord CupTournament · View matches2,3832,354-291W / 4L
Sep 6, 1998Sam Lima MemorialTournament · View matches2,3762,383+7+7 / 03W / 0L
Aug 16, 1998Sun TV OpenTournament · View matches2,4102,376-34+0 / -341W / 5L
Jul 18, 1998Sac-Rec Summer OpenTournament · View matches2,4172,410-7+0 / -71W / 1L
Feb 15, 1998Berkeley TTC President's Day TTournament · View matches2,4142,417+3+10 / -75W / 1L