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 2, 2007 | 2007 SpinmaniaTournament · View matches | 1,919 | 1,905 | -14+18 / -32 | 7W / 6L |
| Aug 19, 2007 | Brooklyn TTC August OpenTournament · View matches | 1,974 | 1,919 | -55+8 / -63 | 1W / 4L |
| Jun 17, 2007 | Brooklyn TTC June OpenTournament · View matches | 1,975 | 1,974 | -1+14 / -15 | 7W / 3L |
| Jun 3, 2007 | Meiklejohn North American SeniTournament · View matches | 1,984 | 1,975 | -9+11 / -20 | 7W / 3L |
| May 27, 2007 | Golden State OpenTournament · View matches | 1,978 | 1,984 | +6+18 / -12 | 3W / 2L |
| May 20, 2007 | NJTTC May OpenTournament · View matches · USATT readjusted 1,837 → 1,955 | 1,837 | 1,978 | +23+38 / -15 | 8W / 2L |
| May 13, 2007 | Potomac 2007 Spring OpenTournament · View matches | 1,888 | 1,837 | -51+6 / -57 | 6W / 3L |
| Apr 22, 2007 | Brooklyn TTC April OpenTournament · View matches | 1,871 | 1,888 | +17+38 / -21 | 4W / 4L |
| Mar 25, 2007 | 6th FIT Open TT ChampionshipsTournament · View matches | 1,850 | 1,871 | +21+35 / -14 | 8W / 7L |
| Mar 18, 2007 | NJTTC March OpenTournament · View matches | 1,854 | 1,850 | -4+18 / -22 | 5W / 2L |
| Mar 11, 2007 | Brooklyn TTC March OpenTournament · View matches | 1,839 | 1,854 | +15+28 / -13 | 6W / 3L |
| Feb 18, 2007 | NJTTC February OpenTournament · View matches | 1,849 | 1,839 | -10+5 / -15 | 5W / 3L |
| Jan 21, 2007 | NJTTC January OpenTournament · View matches | 1,897 | 1,849 | -48+13 / -61 | 4W / 3L |
| Jan 14, 2007 | Brooklyn TTC January OpenTournament · View matches | 1,925 | 1,897 | -28+15 / -43 | 3W / 4L |
| Dec 16, 2006 | U.S. National ChampionshipsTournament · View matches | 2,033 | 1,925 | -108 | 9W / 10L |
| Dec 10, 2006 | Brooklyn TTC OpenTournament · View matches | 2,037 | 2,033 | -4+8 / -12 | 2W / 3L |
| Nov 26, 2006 | 2006 N. American Teams Open ChampionshipTournament · View matches | 1,855 | 2,037 | +182 | 8W / 10L |
| Nov 19, 2006 | 5th FIT Open TT ChampionshipsTournament · View matches | 1,853 | 1,855 | +2+2 / 0 | 3W / 3L |
| Nov 12, 2006 | Brooklyn TTC OpenTournament · View matches | 1,853 | 1,853 | 0+0 / 0 | 2W / 2L |
| Oct 8, 2006 | Framingham TTC October OpenTournament · View matches | 1,824 | 1,853 | +29 | 6W / 3L |