Player record

Marzena Kowalczyk

ID 78876ILFemaleInactive

Marzena Kowalczyk's USATT rating is 683.

USATT rating683
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Wins

35

Indexed tournament wins

Losses

119

Indexed tournament losses

Matches

154

Decisive results

Win rate

22.7%

Across indexed matches

Peak rating

683

Highest rating in the available history.

Biggest upset

Johnnie Beck

2015 South Shore Butterfly Open · Oct 25, 2015 · +543 rating

Open →

Biggest loss

Adam Polecki

Fall Open · Nov 14, 2015 · -301 rating

Open →

Most frequent opponent

Brian Ngeunjuntr

4 matches

Open →

Rating trajectory

Published rating movement across recorded events.

Tournament history

27 tournament appearances · synced Aug 26, 2026, 2:28 AM

DateTournamentRating inRating afterPoints changedRecord
May 10, 2014May OpenTournament · View matches470517+47+58 / -113W / 4L
Apr 26, 2014Vernon Hills Spring OpenTournament · View matches471470-1+0 / -10W / 3L
Nov 16, 2013November OpenTournament · View matches478471-7+0 / -70W / 3L
Oct 27, 2013South Shore Sports/Butterfly Table Tennis ChampionshipsTournament · View matches475478+3+3 / 01W / 5L
Aug 24, 2013Vernon Hills Summer OpenTournament · View matches480475-5+0 / -50W / 3L
May 7, 2011May OpenTournament · View matches493480-13+0 / -130W / 8L
Dec 29, 2008SPINvitationalTournament · View matches · Initial rating 493Unrated493—0W / 3L