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, 3:13 PM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Mar 14, 2004 | Buckeye OpenTournament · View matches | 1,802 | 1,778 | -24 | 6W / 10L |
| Mar 7, 2004 | NJTTC March OpenTournament · View matches | 1,807 | 1,802 | -5 | 3W / 3L |
| Feb 8, 2004 | NJTTC February OpenTournament · View matches | 1,753 | 1,807 | +54+67 / -13 | 10W / 9L |
| Dec 20, 2003 | 2003 USA TT National ChampionshipTournament · View matches | 1,664 | 1,753 | +89 | 10W / 8L |
| Nov 16, 2003 | NJTTC November OpenTournament · View matches | 1,661 | 1,664 | +3+57 / -54 | 8W / 7L |
| Nov 9, 2003 | Maryland CircuitTournament · View matches | 1,677 | 1,661 | -16+25 / -41 | 8W / 5L |
| Oct 19, 2003 | 2nd CCBA Taisun TT ChampionshipTournament · View matches | 1,690 | 1,677 | -13+0 / -13 | 0W / 3L |
| Oct 5, 2003 | Burke TTC U2300Tournament · View matches | 1,697 | 1,690 | -7 | 3W / 2L |
| Jun 29, 2003 | NYC 2003 OpenTournament · View matches | 1,676 | 1,697 | +21+22 / -1 | 4W / 2L |
| Jun 22, 2003 | Burke TTC U2300 (Pre-Open Warmup)Tournament · View matches | 1,714 | 1,676 | -38+9 / -47 | 4W / 4L |
| Jun 15, 2003 | Stiga Open on the 2003 Stiga NTournament · View matches | 1,707 | 1,714 | +7+27 / -20 | 5W / 7L |
| Jun 1, 2003 | 4th Garden State OpenTournament · View matches | 1,731 | 1,707 | -24+17 / -41 | 3W / 4L |
| Mar 23, 2003 | NJTTC March OpenTournament · View matches | 1,706 | 1,731 | +25 | 10W / 7L |
| Jan 19, 2003 | NJTTC Winter OpenTournament · View matches | 1,774 | 1,706 | -68 | 6W / 5L |
| Dec 22, 2002 | 2002 US National ChampionshipsTournament · View matches | 1,719 | 1,774 | +55+68 / -13 | 6W / 8L |
| Dec 15, 2002 | NJTTC December OpenTournament · View matches | 1,720 | 1,719 | -1+7 / -8 | 2W / 4L |
| Dec 8, 2002 | 1st NY City Cup ChampionshipsTournament · View matches | 1,734 | 1,720 | -14 | 2W / 1L |
| Oct 20, 2002 | 2002 Millcreek OpenTournament · View matches | 1,706 | 1,734 | +28+103 / -75 | 10W / 9L |
| Oct 13, 2002 | Stiga World TTC October OpenTournament · View matches | 1,723 | 1,706 | -17 | 4W / 6L |
| Sep 8, 2002 | Spinmania 2002Tournament · View matches | 1,748 | 1,723 | -25 | 4W / 7L |