Player record

Costanzo, Ron

ID 63953NYMaleInactive
Current rating1,151
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Wins

28

Indexed tournament wins

Losses

21

Indexed tournament losses

Matches

49

Decisive results

Win rate

57.1%

Across indexed matches

Peak rating

1,326

Highest rating in the available history.

Biggest upset

Sierra, Jaime

Westside TTC September Open · Sep 18, 1994 · +345 rating

Open →

Biggest loss

Hayes, Fredrick L.

Westfield December Open · Dec 11, 1994 · -290 rating

Open →

Most frequent opponent

Roger Brown

4 matches

Open →

Rating trajectory

Published rating movement across recorded events.

Tournament history

13 tournament appearances · synced Aug 11, 2026, 2:25 AM

DateTournamentRating inRating afterPoints changedRecord
Apr 30, 1995Westfield April OpenTournament · View matches1,1521,151-1+2 / -32W / 1L
Apr 9, 1995New Jersey State ChampionshipsTournament · View matches1,1651,152-13+11 / -242W / 2L
Mar 12, 1995Westfield March OpenTournament · View matches1,2231,165-58+0 / -580W / 3L
Jan 15, 1995Westfield January OpenTournament · View matches1,2331,223-10+0 / -101W / 1L
Dec 18, 1994US NationalsTournament · View matches1,2391,233-6+2 / -83W / 1L
Dec 11, 1994Westfield December OpenTournament · View matches1,3131,239-74+0 / -742W / 4L
Nov 20, 1994Westfield November OpenTournament · View matches1,3151,313-2+6 / -82W / 1L
Sep 25, 1994Westfield September OpenTournament · View matches1,3261,315-112W / 1L
Sep 18, 1994Westside TTC September OpenTournament · View matches1,1541,326+1725W / 3L
May 15, 1994Westfield May OpenTournament · View matches1,1741,154-20+20 / -401W / 1L
Apr 24, 1994New Jersey ClosedTournament · View matches1,1681,174+6+7 / -12W / 1L
Apr 10, 1994Westfield April OpenTournament · View matches1,1521,168+16+16 / 01W / 2L
Mar 13, 1994Westfield March OpenTournament · View matches1,1111,152+41+41 / 05W / 0L