Wins
257
Indexed tournament wins
Player record
Kozak, John
Losses
195
Indexed tournament losses
Matches
452
Decisive results
Win rate
56.9%
Across indexed matches
Peak rating
1,873
Highest rating in the available history.
Biggest upset
Redding, William
U.S. Open · Jul 6, 1997 · +381 rating
Open →Biggest loss
Darilyn Garcia Melendez
U.S. Open/ITTF Pro Tour · Jul 9, 2000 · -553 rating
Open →Most frequent opponent
Syal, Ravi
3 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
40 tournament appearances · synced Aug 8, 2026, 2:16 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Nov 23, 2018 | JOOLA North American TeamsTournament · View matches | 1,796 | 1,693 | -103+3 / -106 | 4W / 6L |
| Nov 25, 2016 | 2016 Butterfly Thanksgiving TeamsTournament · View matches | 1,860 | 1,796 | -64+23 / -87 | 5W / 7L |
| Nov 27, 2015 | 2015 Butterfly Thanksgiving TeamsTournament · View matches | 1,873 | 1,860 | -13+8 / -21 | 9W / 2L |
| Nov 30, 2014 | 2014 JOOLA North American Teams ChampionshipsTournament · View matches | 1,813 | 1,873 | +60 | 9W / 5L |
| Dec 1, 2013 | 2013 JOOLA N. American Teams OTournament · View matches | 1,748 | 1,813 | +65 | 9W / 8L |
| Nov 25, 2012 | Butterfly Thanksgiving Team ChampionshipsTournament · View matches | 1,819 | 1,748 | -71 | 9W / 7L |
| Apr 22, 2012 | 2012 PA State ChampionshipsTournament · View matches | 1,832 | 1,819 | -13+4 / -17 | 1W / 2L |
| Nov 27, 2011 | 2011 JOOLA N. American Teams OTournament · View matches | 1,823 | 1,832 | +9 | 9W / 3L |
| Nov 28, 2010 | 2010 JOOLA N. American TeamsTournament · View matches | 1,850 | 1,823 | -27 | 5W / 11L |
| Nov 29, 2009 | 2009 JOOLA N. American Teams OTournament · View matches | 1,843 | 1,850 | +7 | 9W / 10L |
| Nov 30, 2008 | 2008 JOOLA American Teams OpenTournament · View matches | 1,832 | 1,843 | +11 | 9W / 5L |
| Sep 14, 2008 | 2008 NA Tour Finals OpenTournament · View matches | 1,866 | 1,832 | -34+18 / -52 | 6W / 5L |
| Nov 25, 2007 | 2007 JOOLA N. American Teams OTournament · View matches | 1,811 | 1,866 | +55 | 7W / 8L |
| Oct 21, 2007 | MATTC October OpenTournament · View matches | 1,837 | 1,811 | -26+0 / -26 | 2W / 4L |
| Nov 26, 2006 | 2006 N. American Teams Open ChampionshipTournament · View matches | 1,752 | 1,837 | +85 | 12W / 8L |
| Dec 17, 2005 | 2005 US Nationals ChampionshipTournament · View matches | 1,758 | 1,752 | -6+19 / -25 | 6W / 4L |
| Nov 27, 2005 | 2005 N. American Teams Open ChTournament · View matches | 1,740 | 1,758 | +18 | 11W / 7L |
| Apr 17, 2005 | 2005 PA State Championship (ClTournament · View matches | 1,731 | 1,740 | +9 | 3W / 3L |
| Nov 28, 2004 | 2004 N. American Teams Open TTTournament · View matches | 1,792 | 1,731 | -61 | 11W / 6L |
| Jul 4, 2004 | US OpenTournament · View matches | 1,814 | 1,792 | -22 | 3W / 5L |
1–20 of 40
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