Wins
1,836
Indexed tournament wins
Player record
Mark Berg
Losses
1,484
Indexed tournament losses
Matches
3,320
Decisive results
Win rate
55.3%
Across indexed matches
Peak rating
2,037
Highest rating in the available history.
Biggest upset
Wai M. Wong
2026 USATT Northeast Regional Championships · May 16, 2026 · +576 rating
Open →Biggest loss
Kastner, Frankz
NYTTF October Open · Oct 5, 2008 · -1189 rating
Open →Most frequent opponent
Robert Spitzer
32 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
413 tournament appearances · synced Aug 10, 2026, 4:14 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Sep 18, 2005 | NJTTC September RRTournament · View matches | 1,933 | 1,929 | -4+26 / -30 | 8W / 1L |
| Sep 11, 2005 | Brooklyn September OpenTournament · View matches | 1,938 | 1,933 | -5 | 2W / 3L |
| Sep 4, 2005 | Kam Man Cup - Metropolitan OpeTournament · View matches | 1,829 | 1,938 | +109 | 9W / 6L |
| Jul 24, 2005 | 2005 Eastern Open/Zhi Yu CupTournament · View matches | 1,854 | 1,829 | -25 | 6W / 9L |
| Jun 26, 2005 | Stiga OpenTournament · View matches | 1,916 | 1,868 | -48+6 / -54 | 5W / 4L |
| Jun 26, 2005 | NYC 2005 OpenTournament · View matches | 1,868 | 1,854 | -14+32 / -46 | 3W / 3L |
| Jun 12, 2005 | Golden State OpenTournament · View matches | 1,959 | 1,916 | -43+3 / -46 | 2W / 4L |
| Jun 5, 2005 | Meiklejohn National Seniors OpTournament · View matches · USATT readjusted 1,866 → 1,929 | 1,866 | 1,959 | +30+48 / -18 | 7W / 6L |
| May 15, 2005 | 6th Garden State OpenTournament · View matches | 1,899 | 1,866 | -33+1 / -34 | 6W / 5L |
| May 1, 2005 | NJTTC April OpenTournament · View matches | 1,888 | 1,899 | +11+41 / -30 | 5W / 3L |
| Apr 17, 2005 | Brooklyn April OpenTournament · View matches | 1,893 | 1,888 | -5+1 / -6 | 1W / 2L |
| Apr 10, 2005 | China Press Cup & FIT OpenTournament · View matches | 1,869 | 1,893 | +24+26 / -2 | 3W / 2L |
| Mar 27, 2005 | NJTTC March Open IITournament · View matches | 1,840 | 1,869 | +29+51 / -22 | 4W / 3L |
| Mar 20, 2005 | Ramapo OpenTournament · View matches | 1,867 | 1,840 | -27+13 / -40 | 3W / 3L |
| Mar 6, 2005 | NJTTC March OpenTournament · View matches | 1,828 | 1,867 | +39+41 / -2 | 7W / 2L |
| Feb 27, 2005 | FTTA 0205 RR OpenTournament · View matches | 1,851 | 1,828 | -23+3 / -26 | 3W / 4L |
| Feb 6, 2005 | NJTTC February OpenTournament · View matches | 1,857 | 1,851 | -6+12 / -18 | 3W / 4L |
| Jan 16, 2005 | Brooklyn January OpenTournament · View matches | 1,857 | 1,857 | 0+6 / -6 | 2W / 2L |
| Jan 9, 2005 | NJTTC January OpenTournament · View matches | 1,844 | 1,857 | +13+24 / -11 | 5W / 3L |
| Dec 18, 2004 | 2004 USA Nationals ChampionshipTournament · View matches | 2,010 | 1,844 | -166+10 / -176 | 6W / 11L |