Wins
35
Indexed tournament wins
Player record
Kowalczyk, Marzena
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
Beck, Johnnie
2015 South Shore Butterfly Open · Oct 25, 2015 · +543 rating
Open →Biggest loss
Polecki, Adam
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 8, 2026, 2:23 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| May 10, 2014 | May OpenTournament · View matches | 470 | 517 | +47+58 / -11 | 3W / 4L |
| Apr 26, 2014 | Vernon Hills Spring OpenTournament · View matches | 471 | 470 | -1+0 / -1 | 0W / 3L |
| Nov 16, 2013 | November OpenTournament · View matches | 478 | 471 | -7+0 / -7 | 0W / 3L |
| Oct 27, 2013 | South Shore Sports/Butterfly Table Tennis ChampionshipsTournament · View matches | 475 | 478 | +3+3 / 0 | 1W / 5L |
| Aug 24, 2013 | Vernon Hills Summer OpenTournament · View matches | 480 | 475 | -5+0 / -5 | 0W / 3L |
| May 7, 2011 | May OpenTournament · View matches | 493 | 480 | -13+0 / -13 | 0W / 8L |
| Dec 29, 2008 | SPINvitationalTournament · View matches · Initial rating 493 | Unrated | 493 | — | 0W / 3L |
21–27 of 27
PreviousPage 2 of 2