Wins
522
Indexed tournament wins
Player record
Olaf Surmann
Losses
200
Indexed tournament losses
Matches
722
Decisive results
Win rate
72.3%
Across indexed matches
Peak rating
2,244
Highest rating in the available history.
Biggest upset
Zeng, David Heng-Wah
ICC California State Open · May 27, 2012 · +202 rating
Open →Biggest loss
So, Preston
Sacramento Winter Open · Mar 3, 2012 · -408 rating
Open →Most frequent opponent
Tom Spesick
13 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
123 tournament appearances · synced Aug 8, 2026, 3:26 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Mar 12, 2016 | 2016 Sacramento Winter OpenTournament · View matches | 2,133 | 2,166 | +33+48 / -15 | 7W / 3L |
| Dec 6, 2015 | ICC STIGA California OpenTournament · View matches | 2,138 | 2,133 | -5+0 / -5 | 2W / 1L |
| Sep 26, 2015 | Sacramento September OpenTournament · View matches | 2,131 | 2,138 | +7+34 / -27 | 11W / 3L |
| Dec 7, 2014 | ICC California State OpenTournament · View matches | 2,156 | 2,131 | -25 | 2W / 2L |
| Oct 11, 2014 | Sacramento Fall OpenTournament · View matches | 2,152 | 2,156 | +4+14 / -10 | 6W / 3L |
| Sep 14, 2014 | 2014 Berkeley Open on JOOLA North American TourTournament · View matches | 2,151 | 2,152 | +1+8 / -7 | 4W / 1L |
| Apr 6, 2014 | ICC California State OpenTournament · View matches | 2,195 | 2,151 | -44+8 / -52 | 4W / 2L |
| Mar 1, 2014 | Sacramento Winter OpenTournament · View matches | 2,200 | 2,195 | -5+13 / -18 | 7W / 2L |
| Feb 16, 2014 | 2014 Western Open on JOOLA NA TourTournament · View matches | 2,206 | 2,200 | -6+4 / -10 | 4W / 1L |
| Dec 8, 2013 | ICC CA State OpenTournament · View matches | 2,241 | 2,206 | -35+0 / -35 | 2W / 1L |
| Nov 9, 2013 | Sacramento Fall OpenTournament · View matches · USATT readjusted 2,134 → 2,205 | 2,134 | 2,241 | +36+45 / -9 | 8W / 2L |
| Sep 8, 2013 | 2013 Berkeley Open on JOOLA North America TourTournament · View matches | 2,164 | 2,134 | -30+0 / -30 | 2W / 1L |
| Aug 17, 2013 | Sacramento Summer OpenTournament · View matches | 2,180 | 2,164 | -16+0 / -16 | 2W / 2L |
| May 11, 2013 | Sacramento Spring OpenTournament · View matches | 2,162 | 2,180 | +18+21 / -3 | 6W / 2L |
| Mar 2, 2013 | Sacramento Bill Brin Memorial Winter OpenTournament · View matches | 2,217 | 2,162 | -55+3 / -58 | 5W / 4L |
| Feb 17, 2013 | ICC CA State OpenTournament · View matches | 2,225 | 2,217 | -8+4 / -12 | 5W / 2L |
| Dec 22, 2012 | 2012 U.S. NationalsTournament · View matches | 2,239 | 2,225 | -14+2 / -16 | 3W / 1L |
| Nov 3, 2012 | Sacramento Fall OpenTournament · View matches | 2,198 | 2,239 | +41+48 / -7 | 10W / 2L |
| Sep 23, 2012 | 2012 Berkeley Open on JOOLA North America TourTournament · View matches | 2,196 | 2,198 | +2+16 / -14 | 6W / 2L |
| May 27, 2012 | ICC California State OpenTournament · View matches · USATT readjusted 2,101 → 2,164 | 2,101 | 2,196 | +32+49 / -17 | 6W / 3L |