Wins
64
Indexed tournament wins
Player record
Wins
64
Losses
152
Matches
216
Win rate
29.6%
1,335
Highest rating in the available history.
Betty Kostkowski
Maryland May Circuit - Giant R · May 26, 2001 · +593 rating
Open →Felix Sun
MDTTC October Open · Oct 20, 2002 · -424 rating
Open →Michael Branch
5 matches
Open →Published rating movement across recorded events.
21 tournament appearances · synced Aug 11, 2026, 4:11 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Dec 1, 2013 | 2013 JOOLA N. American Teams OTournament · View matches | 1,335 | 1,283 | -52 | 6W / 11L |
| Nov 30, 2003 | North American TeamsTournament · View matches | 1,158 | 1,335 | +177 | 4W / 19L |
| May 4, 2003 | Maryland CircuitTournament · View matches | 1,144 | 1,158 | +14+34 / -20 | 8W / 6L |
| Mar 30, 2003 | Quaker city OpenTournament · View matches | 1,140 | 1,144 | +4 | 4W / 7L |
| Dec 1, 2002 | Stiga N.A. Teams ChampionshipsTournament · View matches | 1,063 | 1,140 | +77 | 5W / 12L |
| Oct 20, 2002 | MDTTC October OpenTournament · View matches | 1,167 | 1,063 | -104+0 / -104 | 0W / 3L |
| Sep 22, 2002 | Matthew Murad Mem OpenTournament · View matches | 1,013 | 1,167 | +154 | 2W / 6L |
| Jul 13, 2002 | Maryland CircuitTournament · View matches | 838 | 1,013 | +175 | 7W / 6L |
| May 4, 2002 | Maryland CircuitTournament · View matches | 791 | 838 | +47+51 / -4 | 2W / 5L |
| Mar 23, 2002 | Maryland Giant RRTournament · View matches | 779 | 791 | +12+24 / -12 | 5W / 4L |
| Feb 23, 2002 | Maryland Giant RRTournament · View matches | 796 | 779 | -17 | 6W / 5L |
| Nov 25, 2001 | 2001 Stiga No. American TeamsTournament · View matches | 593 | 796 | +203 | 6W / 12L |
| Oct 27, 2001 | Maryland Oct. Circuit - Giant Tournament · View matches | 569 | 593 | +24+29 / -5 | 2W / 6L |
| Jun 3, 2001 | MDTTC June OpenTournament · View matches | 636 | 569 | -67+0 / -67 | 0W / 4L |
| May 26, 2001 | Maryland May Circuit - Giant RTournament · View matches | 370 | 636 | +266 | 3W / 4L |
| Apr 8, 2001 | MDTTC April OpenTournament · View matches · USATT readjusted 354 → 385 | 354 | 370 | -15+7 / -22 | 2W / 3L |
| Nov 26, 2000 | No. Amer. Teams Open ChampionshipsTournament · View matches | 304 | 354 | +50 | 1W / 11L |
| Aug 20, 2000 | Matthew Murad Memorial Open oTournament · View matches | 296 | 304 | +8+8 / 0 | 1W / 9L |
| Aug 13, 2000 | Maryland August CircuitTournament · View matches | 296 | 296 | 0+0 / 0 | 0W / 7L |
| Jun 18, 2000 | MDTTC June OpenTournament · View matches | 300 | 296 | -4+0 / -4 | 0W / 3L |
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