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 9, 2026, 9:09 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Sep 18, 2011 | NJTTC 2011 September OpenTournament · View matches | 1,875 | 1,865 | -10+11 / -21 | 4W / 2L |
| Aug 7, 2011 | GHTTC Augsut 2011 OpenTournament · View matches | 1,863 | 1,875 | +12+21 / -9 | 8W / 3L |
| Jul 31, 2011 | Brooklyn Borough President TT CupTournament · View matches | 1,872 | 1,863 | -9+1 / -10 | 1W / 3L |
| Jun 26, 2011 | 2011 DSP Cup/NYTTF Open SeriesTournament · View matches | 1,920 | 1,872 | -48+0 / -48 | 2W / 4L |
| Jun 25, 2011 | 2011 Roosevelt Island OpenTournament · View matches | 1,887 | 1,920 | +33+57 / -24 | 7W / 4L |
| May 22, 2011 | Greater Hartford May 2011 OpenTournament · View matches | 1,888 | 1,887 | -1+2 / -3 | 3W / 3L |
| May 7, 2011 | Maryland CircuitTournament · View matches | 1,850 | 1,888 | +38+84 / -46 | 9W / 5L |
| May 1, 2011 | NJTTC April OpenTournament · View matches | 1,888 | 1,850 | -38+3 / -41 | 5W / 3L |
| Apr 24, 2011 | 2011 BTTC April OpenTournament · View matches | 1,885 | 1,888 | +3+10 / -7 | 6W / 1L |
| Apr 3, 2011 | 40 Yrs. of Friendship & PingPoTournament · View matches | 1,883 | 1,885 | +2+23 / -21 | 4W / 4L |
| Mar 27, 2011 | NJTTC March OpenTournament · View matches | 1,877 | 1,883 | +6+12 / -6 | 5W / 2L |
| Feb 27, 2011 | 2011 DSP Cup/NYTTF Open SeriesTournament · View matches | 1,901 | 1,877 | -24+4 / -28 | 3W / 3L |
| Feb 20, 2011 | NJTTC February OpenTournament · View matches | 1,901 | 1,901 | 0+6 / -6 | 3W / 1L |
| Feb 13, 2011 | Lily Yip TT Ctr Feb Open - Kam Man CupTournament · View matches | 1,914 | 1,901 | -13+3 / -16 | 3W / 1L |
| Feb 6, 2011 | 2011 NYTT Feb OpenTournament · View matches | 1,911 | 1,914 | +3+3 / 0 | 1W / 0L |
| Jan 23, 2011 | NJTTC January OpenTournament · View matches | 1,912 | 1,911 | -1+12 / -13 | 4W / 2L |
| Dec 18, 2010 | 2010 US NationalsTournament · View matches | 1,891 | 1,912 | +21+64 / -43 | 7W / 7L |
| Dec 5, 2010 | 2010 DSP/NYTTF Open SeriesTournament · View matches · USATT readjusted 1,972 → 1,977 | 1,972 | 1,891 | -86+2 / -88 | 2W / 4L |
| Nov 28, 2010 | 2010 JOOLA N. American TeamsTournament · View matches | 1,815 | 1,972 | +157 | 11W / 7L |
| Nov 21, 2010 | BTTC November OpenTournament · View matches | 1,789 | 1,815 | +26+38 / -12 | 10W / 3L |