Wins
163
Indexed tournament wins
Player record
Johnny Yam
Losses
168
Indexed tournament losses
Matches
331
Decisive results
Win rate
49.2%
Across indexed matches
Peak rating
2,001
Highest rating in the available history.
Biggest upset
Sarma, Justin
Golden State Open · May 25, 2008 · +409 rating
Open →Biggest loss
Sonowal, Chandva Kamal
2019 Ultimate Fieldhouse April Open · Apr 20, 2019 · -321 rating
Open →Most frequent opponent
Phong Dao
5 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
49 tournament appearances · synced Aug 8, 2026, 2:57 PM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Apr 20, 2019 | 2019 Ultimate Fieldhouse April OpenTournament · View matches | 1,884 | 1,822 | -62+0 / -62 | 1W / 3L |
| Mar 16, 2019 | 2019 Sacramento Winter OpenTournament · View matches | 1,870 | 1,884 | +14+45 / -31 | 6W / 6L |
| Mar 1, 2019 | 2019 Butterfly Ultimate Fieldhouse March OpenTournament · View matches | 1,835 | 1,870 | +35+36 / -1 | 7W / 2L |
| Dec 28, 2018 | 2018 Ultimate Fieldhouse December OpenTournament · View matches | 1,840 | 1,835 | -5+5 / -10 | 3W / 4L |
| Nov 10, 2018 | 2018 Portland Open Table Tennis TournamentTournament · View matches | 1,854 | 1,840 | -14+9 / -23 | 6W / 4L |
| Aug 11, 2018 | Sacramento Summer Open Giant RR & 3 Player Team!Tournament · View matches | 1,842 | 1,854 | +12+71 / -59 | 8W / 3L |
| Jul 3, 2017 | 2017 SuperMicro US NationalsTournament · View matches | 1,819 | 1,842 | +23+55 / -32 | 8W / 5L |
| May 20, 2017 | Sacramento Spring OpenTournament · View matches | 1,857 | 1,819 | -38+8 / -46 | 2W / 6L |
| Oct 29, 2016 | Sacramento Fall Fun For All OpenTournament · View matches | 1,868 | 1,857 | -11+0 / -11 | 1W / 2L |
| Aug 27, 2016 | Sacramento Summer OpenTournament · View matches | 1,868 | 1,868 | 0+7 / -7 | 2W / 4L |
| Aug 13, 2016 | 2016 Butterfly San Francisco Open Table Tennis ChampionshipTournament · View matches | 1,877 | 1,868 | -9+6 / -15 | 3W / 2L |
| May 21, 2016 | Sacramento Spring OpenTournament · View matches · USATT readjusted 1,758 → 1,844 | 1,758 | 1,877 | +33+49 / -16 | 7W / 2L |
| Mar 12, 2016 | 2016 Sacramento Winter OpenTournament · View matches | 1,718 | 1,758 | +40+45 / -5 | 2W / 4L |
| Nov 7, 2015 | Sacramento Fall OpenTournament · View matches | 1,702 | 1,718 | +16+35 / -19 | 5W / 4L |
| Sep 26, 2015 | Sacramento September OpenTournament · View matches | 1,692 | 1,702 | +10+20 / -10 | 2W / 6L |
| Sep 6, 2015 | 2015 LA Open Table Tennis TournamentTournament · View matches · USATT readjusted 1,606 → 1,662 | 1,606 | 1,692 | +30+45 / -15 | 5W / 2L |
| Jul 26, 2009 | Alameda OpenTournament · View matches | 1,593 | 1,606 | +13+13 / 0 | 3W / 2L |
| May 24, 2009 | Golden State OpenTournament · View matches | 1,648 | 1,593 | -55+1 / -56 | 1W / 3L |
| Mar 14, 2009 | Sacramento Winter OpenTournament · View matches | 1,652 | 1,648 | -4+0 / -4 | 0W / 2L |
| Oct 26, 2008 | Concord Cup Youth OpenTournament · View matches | 1,658 | 1,652 | -6+2 / -8 | 2W / 3L |