Wins
751
Indexed tournament wins
Player record
Johnson, Mark
Losses
714
Indexed tournament losses
Matches
1,465
Decisive results
Win rate
51.3%
Across indexed matches
Peak rating
1,987
Highest rating in the available history.
Biggest upset
Yang, Justin
US Nationals · Jul 2, 2018 · +369 rating
Open →Biggest loss
Davila, Ruben
2013 Berkeley Open on JOOLA North America Tour · Sep 8, 2013 · -667 rating
Open →Most frequent opponent
Chen, Peter
12 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
148 tournament appearances · synced Aug 8, 2026, 2:20 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| May 25, 2003 | Golden State OpenTournament · View matches | 1,695 | 1,714 | +19+27 / -8 | 2W / 3L |
| May 3, 2003 | Sacramento Spring OpenTournament · View matches | 1,704 | 1,695 | -9+33 / -42 | 3W / 8L |
| Apr 20, 2003 | California Open 2003/Stiga N.ATournament · View matches | 1,711 | 1,704 | -7 | 2W / 1L |
| Feb 15, 2003 | Sacramento Winter OpenTournament · View matches | 1,702 | 1,711 | +9+21 / -12 | 4W / 2L |
| Sep 21, 2002 | Sacramento Sept. OpenTournament · View matches | 1,683 | 1,702 | +19+34 / -15 | 4W / 4L |
| Aug 18, 2002 | San Francisco Summer OpenTournament · View matches | 1,691 | 1,683 | -8+7 / -15 | 1W / 3L |
| May 26, 2002 | Golden State OpenTournament · View matches | 1,701 | 1,691 | -10+0 / -10 | 1W / 2L |
| May 4, 2002 | Cinco de Mayo RRTournament · View matches · Initial rating 1,701 | Unrated | 1,701 | — | 3W / 5L |
141–148 of 148
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