Wins
5
Indexed tournament wins
Player record
Koons, David
Losses
24
Indexed tournament losses
Matches
29
Decisive results
Win rate
17.2%
Across indexed matches
Peak rating
429
Highest rating in the available history.
Biggest upset
Nauman, Mary
Meiklejohn North American Seniors Open · Jun 3, 2012 · +675 rating
Open →Biggest loss
Kache, Anurag
Sacramento Summer Open · Aug 18, 2012 · -202 rating
Open →Most frequent opponent
Sichan Kanyavong
2 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
7 tournament appearances · synced Aug 8, 2026, 2:25 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Jun 2, 2013 | Meiklejohn North American Seniors OpenTournament · View matches | 377 | 377 | 0+0 / 0 | 0W / 2L |
| Mar 2, 2013 | Sacramento Bill Brin Memorial Winter OpenTournament · View matches | 379 | 377 | -2+0 / -2 | 0W / 1L |
| Aug 18, 2012 | Sacramento Summer OpenTournament · View matches | 429 | 379 | -50+0 / -50 | 0W / 2L |
| Jun 3, 2012 | Meiklejohn North American Seniors OpenTournament · View matches · USATT readjusted 329 → 379 | 329 | 429 | +50+50 / 0 | 1W / 2L |
| Mar 3, 2012 | Sacramento Winter OpenTournament · View matches | 332 | 329 | -3 | 1W / 5L |
| Oct 29, 2011 | Sacramento Fall OpenTournament · View matches | 330 | 332 | +2+6 / -4 | 1W / 7L |
| Aug 20, 2011 | Sacramento Summer OpenTournament · View matches · Initial rating 330 | Unrated | 330 | — | 2W / 5L |
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