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 |
|---|---|---|---|---|---|
| Dec 9, 2012 | ICC California State OpenTournament · View matches | 1,751 | 1,778 | +27+35 / -8 | 2W / 4L |
| Sep 23, 2012 | 2012 Berkeley Open on JOOLA North America TourTournament · View matches | 1,811 | 1,751 | -60 | 1W / 13L |
| Jul 4, 2012 | US OpenTournament · View matches | 1,801 | 1,811 | +10 | 11W / 8L |
| May 27, 2012 | ICC California State OpenTournament · View matches · USATT readjusted 1,693 → 1,747 | 1,693 | 1,801 | +54+58 / -4 | 5W / 3L |
| Mar 18, 2012 | ICC California State OpenTournament · View matches | 1,673 | 1,693 | +20+21 / -1 | 3W / 3L |
| Feb 19, 2012 | 2012 Western Open on JOOLA North America TourTournament · View matches | 1,828 | 1,673 | -155+5 / -160 | 3W / 8L |
| Dec 17, 2011 | 2011 US NationalsTournament · View matches | 1,764 | 1,828 | +64 | 8W / 11L |
| Dec 4, 2011 | ICC CA State OpenTournament · View matches | 1,755 | 1,764 | +9+20 / -11 | 5W / 3L |
| Sep 25, 2011 | 2011 Berkeley Open on the JOOLA NA TourTournament · View matches | 1,746 | 1,755 | +9+18 / -9 | 7W / 5L |
| Aug 28, 2011 | 2011 West Coast Summer OpenTournament · View matches | 1,746 | 1,746 | 0+4 / -4 | 3W / 1L |
| Jul 4, 2011 | 2011 US OpenTournament · View matches | 1,726 | 1,746 | +20+20 / 0 | 4W / 7L |
| Jun 26, 2011 | 2011 US Open Warm-UpTournament · View matches | 1,792 | 1,726 | -66+6 / -72 | 2W / 4L |
| Jun 5, 2011 | ICC CA State OpenTournament · View matches | 1,798 | 1,792 | -6+5 / -11 | 3W / 3L |
| May 29, 2011 | Golden State OpenTournament · View matches | 1,830 | 1,798 | -32+9 / -41 | 7W / 3L |
| Apr 24, 2011 | 2011 West Coast Spring OpenTournament · View matches | 1,832 | 1,830 | -2+2 / -4 | 2W / 2L |
| Mar 20, 2011 | ICC CA State OpenTournament · View matches | 1,844 | 1,832 | -12+4 / -16 | 5W / 2L |
| Feb 20, 2011 | 2011 Western Open on the JOOLA NA TourTournament · View matches | 1,838 | 1,844 | +6+29 / -23 | 7W / 4L |
| Feb 6, 2011 | 2011 Year of the Rabbit OpenTournament · View matches | 1,891 | 1,838 | -53+2 / -55 | 3W / 3L |
| Dec 18, 2010 | 2010 US NationalsTournament · View matches | 1,776 | 1,891 | +115 | 13W / 12L |
| Dec 5, 2010 | ICC CA State OpenTournament · View matches | 1,815 | 1,776 | -39+22 / -61 | 5W / 5L |