Player record

Kupferman, Harold

ID 35826NYMaleInactive
Current rating1,787
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Wins

54

Indexed tournament wins

Losses

57

Indexed tournament losses

Matches

111

Decisive results

Win rate

48.6%

Across indexed matches

Peak rating

1,941

Highest rating in the available history.

Biggest upset

Nick Mintsiveris

1996 US Open · Jul 7, 1996 · +276 rating

Open →

Biggest loss

Carlos Orlando Tangsing

1999 US Open · Jul 4, 1999 · -392 rating

Open →

Most frequent opponent

Daniel Wang

5 matches

Open →

Rating trajectory

Published rating movement across recorded events.

Tournament history

14 tournament appearances · synced Aug 8, 2026, 2:16 AM

DateTournamentRating inRating afterPoints changedRecord
Dec 17, 20002000 USATT National ChampionshipTournament · View matches1,7861,787+1+15 / -146W / 3L
Apr 23, 20002000 Spin OpenTournament · View matches1,7821,786+4+28 / -248W / 3L
Jan 8, 2000STTC Jan 2000Tournament · View matches1,7681,782+14+25 / -112W / 6L
Dec 12, 1999Long Island December Open ChamTournament · View matches1,7941,768-26+4 / -302W / 6L
Nov 13, 1999Long Island November Open ChamTournament · View matches1,7921,794+2+19 / -174W / 5L
Aug 29, 1999Long Island Open ChampionshipsTournament · View matches1,8111,792-19+3 / -222W / 3L
Jul 4, 19991999 US OpenTournament · View matches1,8711,811-60+13 / -736W / 6L
Apr 4, 1999Spin OpenTournament · View matches1,9061,871-35+2 / -373W / 4L
Nov 1, 1998Kennedy Memorial Park "Winter Tournament · View matches1,9011,906+52W / 3L
Jul 6, 1997U.S. OpenTournament · View matches1,9301,901-29+4 / -334W / 5L
Oct 18, 1996Huntsman World Senior GamesTournament · View matches1,9411,930-114W / 2L
Jul 7, 19961996 US OpenTournament · View matches1,8381,941+1036W / 3L
Dec 4, 19951995 Hofstra OpenTournament · View matches1,8811,838-433W / 5L
Apr 23, 1994Long Island Charity ChampionshTournament · View matches1,8901,881-92W / 3L