Wins
154
Indexed tournament wins
Player record
Duncan, John
Losses
108
Indexed tournament losses
Matches
262
Decisive results
Win rate
58.8%
Across indexed matches
Peak rating
2,265
Highest rating in the available history.
Biggest upset
Magnus, O. J.
Fall Open TTT · Nov 10, 1996 · +163 rating
Open →Biggest loss
Murray, Alphanso
2001 Spin Open · Apr 15, 2001 · -333 rating
Open →Most frequent opponent
Ajayi Ohore
5 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
30 tournament appearances · synced Aug 8, 2026, 2:14 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Apr 15, 2001 | 2001 Spin OpenTournament · View matches | 2,177 | 2,146 | -31+25 / -56 | 6W / 5L |
| Feb 4, 2001 | 2001 Spinners Feb. OpenTournament · View matches | 2,188 | 2,177 | -11 | 5W / 2L |
| Jan 21, 2001 | Winter OpenTournament · View matches | 2,163 | 2,188 | +25+30 / -5 | 4W / 2L |
| Apr 23, 2000 | 2000 Spin OpenTournament · View matches | 2,162 | 2,163 | +1+18 / -17 | 9W / 3L |
| Apr 16, 2000 | 2000 Champions Spring OpenTournament · View matches · USATT readjusted 2,045 → 2,132 | 2,045 | 2,162 | +30+48 / -18 | 9W / 3L |
| Apr 19, 1998 | Champions March OpenTournament · View matches | 2,078 | 2,045 | -33+7 / -40 | 3W / 4L |
| Nov 9, 1997 | Champions November OpenTournament · View matches | 2,025 | 2,078 | +53+66 / -13 | 7W / 4L |
| Nov 10, 1996 | Fall Open TTTTournament · View matches | 1,987 | 2,025 | +38 | 4W / 6L |
| Oct 23, 1994 | Westfield October OpenTournament · View matches | 1,990 | 1,987 | -3+0 / -3 | 0W / 3L |
| Sep 25, 1994 | Westfield September OpenTournament · View matches · Initial rating 1,990 | Unrated | 1,990 | — | 3W / 4L |
21–30 of 30
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