Wins
237
Indexed tournament wins
Player record
Joseph Yoon
Losses
189
Indexed tournament losses
Matches
426
Decisive results
Win rate
55.6%
Across indexed matches
Peak rating
2,221
Highest rating in the available history.
Biggest upset
Luo, Robert
Robo-Pong St. Joe Valley Open · May 4, 2008 · +235 rating
Open →Biggest loss
Ethan Keller
2016 Butterfly Badger Open · Sep 16, 2016 · -417 rating
Open →Most frequent opponent
Leon Li
12 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
51 tournament appearances · synced Aug 8, 2026, 2:34 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Nov 15, 2025 | CITTA Fall Open RRTournament · View matches | 2,221 | 2,194 | -27+5 / -32 | 1W / 6L |
| May 25, 2019 | America's Team ChampionshipTournament · View matches · USATT readjusted 2,077 → 2,200 | 2,077 | 2,221 | +21+50 / -29 | 7W / 3L |
| May 4, 2019 | Windy City OpenTournament · View matches | 2,090 | 2,077 | -13+6 / -19 | 1W / 5L |
| Mar 30, 2019 | Spring OpenTournament · View matches | 2,100 | 2,090 | -10+0 / -10 | 3W / 2L |
| Jan 18, 2019 | 2019 Aurora CupTournament · View matches | 2,099 | 2,100 | +1+58 / -57 | 6W / 3L |
| Oct 27, 2018 | Edgeball Chicago International Table Tennis OpenTournament · View matches | 2,108 | 2,099 | -9+12 / -21 | 6W / 2L |
| Sep 29, 2018 | 2018 Aurora Fall OpenTournament · View matches | 2,078 | 2,108 | +30+45 / -15 | 2W / 5L |
| Sep 14, 2018 | 2018 Badger OpenTournament · View matches | 2,098 | 2,078 | -20+9 / -29 | 7W / 2L |
| Jul 15, 2018 | 2018 Aurora Summer OpenTournament · View matches | 2,080 | 2,098 | +18+34 / -16 | 5W / 4L |
| Jun 30, 2018 | Summer OpenTournament · View matches | 2,057 | 2,080 | +23+25 / -2 | 5W / 2L |
| May 26, 2018 | America's Team ChampionshipTournament · View matches | 2,068 | 2,057 | -11+1 / -12 | 2W / 10L |
| May 5, 2018 | Windy City OpenTournament · View matches | 2,051 | 2,068 | +17+28 / -11 | 4W / 2L |
| Apr 22, 2018 | Vernon Hills Spring OpenTournament · View matches | 2,042 | 2,051 | +9+13 / -4 | 2W / 3L |
| Apr 7, 2018 | 2018 Aurora Spring OpenTournament · View matches | 2,052 | 2,042 | -10+23 / -33 | 3W / 4L |
| Feb 10, 2018 | Chinese New Year OpenTournament · View matches | 2,070 | 2,049 | -21+0 / -21 | 0W / 6L |
| Jan 12, 2018 | 2018 Aurora CupTournament · View matches | 2,020 | 2,070 | +50+58 / -8 | 7W / 5L |
| Dec 17, 2017 | Chicago TableTennis LeagueTournament · View matches | 2,049 | 2,052 | +3+29 / -26 | 4W / 6L |
| Nov 11, 2017 | Fall OpenTournament · View matches | 2,026 | 2,020 | -6+24 / -30 | 4W / 3L |
| May 27, 2017 | America's Team ChampionshipTournament · View matches | 2,000 | 2,026 | +26+45 / -19 | 4W / 7L |
| Jan 13, 2017 | 2017 Aurora CupTournament · View matches | 2,016 | 2,000 | -16+2 / -18 | 4W / 4L |
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