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 30, 2003 | North American TeamsTournament · View matches | 1,621 | 1,814 | +193 | 13W / 7L |
| Dec 1, 2002 | Stiga N.A. Teams ChampionshipsTournament · View matches | 1,580 | 1,621 | +41 | 6W / 9L |
| Apr 28, 2002 | 2002 PA State Championship (Closed)Tournament · View matches | 1,606 | 1,580 | -26+1 / -27 | 2W / 2L |
| Nov 25, 2001 | 2001 Stiga No. American TeamsTournament · View matches | 1,641 | 1,606 | -35 | 7W / 10L |
| Dec 17, 2000 | 2000 USATT National ChampionshipTournament · View matches | 1,700 | 1,641 | -59+17 / -76 | 10W / 7L |
| Nov 26, 2000 | No. Amer. Teams Open ChampionshipsTournament · View matches | 1,517 | 1,700 | +183 | 9W / 8L |
| Oct 29, 2000 | MATTC October OpenTournament · View matches | 1,513 | 1,517 | +4+10 / -6 | 3W / 1L |
| Jul 9, 2000 | U.S. Open/ITTF Pro TourTournament · View matches | 1,568 | 1,513 | -55+7 / -62 | 4W / 5L |
| Nov 28, 1999 | 1999 NA Teams 2Tournament · View matches | 1,392 | 1,568 | +176 | 8W / 8L |
| Aug 22, 1999 | Macy Block Open (formerly Sun Tournament · View matches | 1,390 | 1,392 | +2+38 / -36 | 4W / 5L |
| Aug 16, 1998 | Sun TV OpenTournament · View matches · USATT readjusted 1,195 → 1,345 | 1,195 | 1,390 | +45+51 / -6 | 8W / 3L |
| Apr 26, 1998 | PA State GamesTournament · View matches | 1,179 | 1,195 | +16+16 / 0 | 6W / 0L |
| Jul 6, 1997 | U.S. OpenTournament · View matches | 1,093 | 1,179 | +86 | 10W / 4L |
| Apr 25, 1997 | '97 Penna State ClosedTournament · View matches | 975 | 1,093 | +118 | 4W / 1L |
| Nov 17, 1996 | MATTC November OpenTournament · View matches | 952 | 975 | +23 | 5W / 1L |
| Oct 6, 1996 | MATTC October OpenTournament · View matches | 935 | 952 | +17+25 / -8 | 4W / 1L |
| Aug 4, 1996 | PA State Keystone GamesTournament · View matches | 886 | 935 | +49 | 5W / 0L |
| Apr 21, 1996 | '96 Penna State Championship CTournament · View matches | 855 | 886 | +31+31 / 0 | 7W / 0L |
| Nov 12, 1995 | MATTC November OpenTournament · View matches | 851 | 855 | +4+16 / -12 | 3W / 2L |
| Sep 24, 1995 | MATTC September OpenTournament · View matches · Initial rating 851 | Unrated | 851 | — | 0W / 5L |
21–40 of 40
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