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
Spitzer, Robert
32 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
413 tournament appearances · synced Aug 9, 2026, 3:07 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| May 11, 2014 | NJTTC 2014 May OpenTournament · View matches | 1,873 | 1,857 | -16+5 / -21 | 4W / 4L |
| Apr 27, 2014 | Westchester 2014 April OpenTournament · View matches | 1,867 | 1,873 | +6+6 / 0 | 3W / 1L |
| Apr 20, 2014 | 2014 HI April OpenTournament · View matches | 1,806 | 1,867 | +61+78 / -17 | 7W / 3L |
| Apr 6, 2014 | NJTTC 2014 April OpenTournament · View matches · USATT readjusted 1,812 → 1,826 | 1,812 | 1,806 | -20+11 / -31 | 3W / 4L |
| Mar 23, 2014 | Westchester 2014 March OpenTournament · View matches | 1,787 | 1,812 | +25+25 / 0 | 4W / 0L |
| Mar 16, 2014 | 20th FIT OpenTournament · View matches | 1,784 | 1,787 | +3+6 / -3 | 6W / 3L |
| Mar 2, 2014 | NYITTC 2014 March OpenTournament · View matches | 1,781 | 1,784 | +3+12 / -9 | 4W / 4L |
| Feb 9, 2014 | NJTTC 2014 February OpenTournament · View matches | 1,807 | 1,781 | -26+20 / -46 | 3W / 5L |
| Jan 12, 2014 | NJTTC 2014 January OpenTournament · View matches | 1,812 | 1,807 | -5+16 / -21 | 5W / 3L |
| Dec 8, 2013 | NJTTC 2013 December OpenTournament · View matches | 1,852 | 1,812 | -40+12 / -52 | 5W / 4L |
| Dec 1, 2013 | 2013 JOOLA N. American Teams OTournament · View matches | 1,848 | 1,852 | +4 | 5W / 15L |
| Nov 17, 2013 | 19th FIT OpenTournament · View matches | 1,854 | 1,848 | -6+7 / -13 | 6W / 2L |
| Nov 3, 2013 | NJTTC 2013 November OpenTournament · View matches | 1,803 | 1,854 | +51+70 / -19 | 5W / 4L |
| Oct 20, 2013 | LYTTC October OpenTournament · View matches | 1,870 | 1,803 | -67+1 / -68 | 5W / 4L |
| Sep 29, 2013 | Westchester 2013 September OpenTournament · View matches | 1,866 | 1,870 | +4+21 / -17 | 4W / 3L |
| Sep 8, 2013 | NJTTC 2013 September OpenTournament · View matches | 1,855 | 1,866 | +11 | 4W / 3L |
| Aug 18, 2013 | LYTTC August OpenTournament · View matches | 1,841 | 1,855 | +14+31 / -17 | 4W / 4L |
| Jul 21, 2013 | Westchester 2013 July OpenTournament · View matches | 1,835 | 1,841 | +6+27 / -21 | 7W / 3L |
| Jul 6, 2013 | US OpenTournament · View matches | 1,838 | 1,835 | -3 | 2W / 7L |
| Jun 16, 2013 | LYTTC June OpenTournament · View matches | 1,825 | 1,838 | +13+23 / -10 | 6W / 3L |