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 10, 2006 | 2006 NNTTC Fall OpenTournament · View matches | 1,796 | 1,824 | +28 | 10W / 5L |
| Aug 20, 2006 | Brooklyn TTC OpenTournament · View matches | 1,832 | 1,796 | -36 | 5W / 5L |
| Jul 23, 2006 | Brooklyn TTC OpenTournament · View matches | 1,857 | 1,832 | -25+10 / -35 | 4W / 2L |
| Jun 11, 2006 | Brooklyn TTC OpenTournament · View matches | 1,846 | 1,857 | +11+18 / -7 | 8W / 3L |
| Jun 4, 2006 | Meiklejohn North American SeniorsTournament · View matches | 1,856 | 1,846 | -10+12 / -22 | 4W / 4L |
| May 28, 2006 | 2006 Golden State OpenTournament · View matches | 1,857 | 1,856 | -1+14 / -15 | 2W / 3L |
| May 14, 2006 | NJTTC May TeamsTournament · View matches | 1,870 | 1,857 | -13+7 / -20 | 1W / 7L |
| Apr 23, 2006 | NJTTC April OpenTournament · View matches | 1,873 | 1,870 | -3+8 / -11 | 4W / 5L |
| Apr 2, 2006 | MDTTC Butterfly Spring OpenTournament · View matches | 1,855 | 1,873 | +18+26 / -8 | 7W / 3L |
| Mar 26, 2006 | Brooklyn TTC OpenTournament · View matches | 1,926 | 1,855 | -71+15 / -86 | 5W / 5L |
| Mar 12, 2006 | 4th FIT Open TT ChampionshipsTournament · View matches · USATT readjusted 1,835 → 1,898 | 1,835 | 1,926 | +28+51 / -23 | 6W / 4L |
| Feb 26, 2006 | Brooklyn TTC OpenTournament · View matches | 1,817 | 1,835 | +18+19 / -1 | 9W / 2L |
| Jan 29, 2006 | Brooklyn TTC OpenTournament · View matches | 1,834 | 1,817 | -17+0 / -17 | 2W / 3L |
| Jan 8, 2006 | NJTTC January OpenTournament · View matches | 1,792 | 1,834 | +42+42 / 0 | 10W / 0L |
| Dec 11, 2005 | NJTTC December RRTournament · View matches | 1,875 | 1,792 | -83+14 / -97 | 5W / 7L |
| Nov 27, 2005 | 2005 N. American Teams Open ChTournament · View matches | 1,772 | 1,875 | +103 | 16W / 6L |
| Nov 20, 2005 | Brooklyn November OpenTournament · View matches | 1,752 | 1,772 | +20+20 / 0 | 3W / 2L |
| Nov 13, 2005 | 3rd FIT Open TT ChampionshipsTournament · View matches | 1,745 | 1,752 | +7 | 2W / 1L |
| Oct 16, 2005 | Brooklyn October OpenTournament · View matches | 1,805 | 1,745 | -60+0 / -60 | 0W / 4L |
| Oct 2, 2005 | 2005 SpinmaniaTournament · View matches | 1,929 | 1,805 | -124+4 / -128 | 3W / 9L |