Wins
116
Indexed tournament wins
Player record
Koji Yamada
Losses
102
Indexed tournament losses
Matches
218
Decisive results
Win rate
53.2%
Across indexed matches
Peak rating
1,469
Highest rating in the available history.
Biggest upset
Affolder, David
Atlanta Fall Open · Sep 10, 2011 · +606 rating
Open →Biggest loss
Semenov, Sergey
Atlanta Open Giant Round Robin · Mar 5, 2016 · -401 rating
Open →Most frequent opponent
Banot, John
6 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
27 tournament appearances · synced Aug 9, 2026, 9:06 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| May 30, 2026 | 2026 AGTTA Summer OpenOther Sanctioned Tournaments · View matches | 1,344 | 1,348 | +4+12 / -8 | 3W / 4L |
| Mar 2, 2019 | Paddle Palace 2019 Atlanta Spring Giant Round RobinTournament · View matches | 1,415 | 1,344 | -71+10 / -81 | 4W / 4L |
| Mar 3, 2018 | Atlanta Giant Round RobinTournament · View matches | 1,403 | 1,415 | +12+19 / -7 | 8W / 1L |
| Sep 9, 2017 | Atlanta Fall Open 2017Tournament · View matches | 1,359 | 1,403 | +44+48 / -4 | 6W / 5L |
| Jul 15, 2017 | Georgia GamesTournament · View matches | 1,326 | 1,359 | +33 | 2W / 4L |
| Jun 3, 2017 | Atlanta OpenTournament · View matches | 1,330 | 1,326 | -4+0 / -4 | 2W / 1L |
| Mar 4, 2017 | Atlanta Giant Round RobinTournament · View matches | 1,419 | 1,330 | -89+3 / -92 | 4W / 4L |
| Nov 5, 2016 | Atlanta Giant Round RobinTournament · View matches | 1,462 | 1,419 | -43+4 / -47 | 1W / 8L |
| Jul 23, 2016 | Georgia GamesTournament · View matches | 1,465 | 1,462 | -3+0 / -3 | 4W / 3L |
| Jun 4, 2016 | Atlanta Giant Round RobinTournament · View matches | 1,369 | 1,465 | +96+110 / -14 | 4W / 3L |
| Mar 5, 2016 | Atlanta Open Giant Round RobinTournament · View matches | 1,427 | 1,369 | -58 | 5W / 3L |
| Nov 7, 2015 | Atlanta Open Giant Round RobinTournament · View matches | 1,469 | 1,427 | -42+5 / -47 | 4W / 4L |
| Jul 19, 2015 | Georgia GamesTournament · View matches · USATT readjusted 1,347 → 1,421 | 1,347 | 1,469 | +48+67 / -19 | 4W / 6L |
| May 30, 2015 | Atlanta Open Giant Round Robin Under 2000Tournament · View matches | 1,335 | 1,347 | +12+24 / -12 | 6W / 2L |
| Mar 7, 2015 | Atlanta Open Giant Round RobinTournament · View matches | 1,338 | 1,336 | -2+26 / -28 | 6W / 3L |
| Nov 1, 2014 | Atlanta Giant Round RobinTournament · View matches | 1,263 | 1,338 | +75+88 / -13 | 9W / 2L |
| Jul 20, 2014 | Georgia GamesTournament · View matches | 1,262 | 1,263 | +1 | 1W / 5L |
| Jun 7, 2014 | Atlanta Open Giant Round Robin U2000Tournament · View matches | 1,260 | 1,262 | +2+25 / -23 | 4W / 4L |
| Mar 1, 2014 | Atlanta Open Giant Round RobinTournament · View matches | 1,383 | 1,260 | -123+0 / -123 | 4W / 5L |
| Nov 2, 2013 | 2013 Atlanta Giant RR Open TTTTournament · View matches | 1,388 | 1,383 | -5 | 5W / 5L |
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