Wins
274
Indexed tournament wins
Player record
Henry Kostkowski
Losses
267
Indexed tournament losses
Matches
541
Decisive results
Win rate
50.6%
Across indexed matches
Peak rating
1,533
Highest rating in the available history.
Biggest upset
TerriLee Bell
Maryland Closed Championship · Jun 2, 2007 · +416 rating
Open →Biggest loss
Chen, Raymond D.
Maryland October Circuit Teams · Oct 28, 2000 · -903 rating
Open →Most frequent opponent
William Van Wright
24 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
72 tournament appearances · synced Aug 8, 2026, 3:33 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Jun 2, 2007 | Maryland Closed ChampionshipTournament · View matches · USATT readjusted 1,288 → 1,446 | 1,288 | 1,474 | +28+66 / -38 | 5W / 5L |
| Apr 28, 2007 | Maryland Giant RRTournament · View matches | 1,286 | 1,288 | +2+8 / -6 | 3W / 4L |
| Apr 15, 2007 | Maryland CircuitTournament · View matches | 1,263 | 1,286 | +23+30 / -7 | 3W / 2L |
| Mar 24, 2007 | Maryland Giant RRTournament · View matches | 1,372 | 1,263 | -109+4 / -113 | 3W / 6L |
| Mar 4, 2007 | Maryland CircuitTournament · View matches | 1,354 | 1,372 | +18+25 / -7 | 7W / 6L |
| Jan 20, 2007 | Maryland Giant RRTournament · View matches | 1,364 | 1,354 | -10+6 / -16 | 1W / 9L |
| Aug 26, 2006 | Maryland Giant RRTournament · View matches | 1,384 | 1,364 | -20+14 / -34 | 4W / 7L |
| Apr 22, 2006 | Maryland ClosedTournament · View matches | 1,397 | 1,384 | -13+5 / -18 | 2W / 3L |
| Feb 25, 2006 | Maryland Giant RRTournament · View matches | 1,441 | 1,397 | -44+16 / -60 | 4W / 3L |
| Nov 27, 2005 | 2005 N. American Teams Open ChTournament · View matches | 1,437 | 1,441 | +4 | 3W / 4L |
| Nov 19, 2005 | Maryland Giant RRTournament · View matches | 1,452 | 1,437 | -15+24 / -39 | 7W / 4L |
| Oct 29, 2005 | Maryland Giant RRTournament · View matches | 1,466 | 1,452 | -14+16 / -30 | 4W / 5L |
| May 21, 2005 | Maryland Giant RRTournament · View matches | 1,460 | 1,466 | +6+14 / -8 | 6W / 1L |
| May 15, 2005 | Maryland CircuitTournament · View matches | 1,450 | 1,460 | +10+10 / 0 | 6W / 0L |
| Apr 3, 2005 | Maryland CircuitTournament · View matches | 1,412 | 1,450 | +38+45 / -7 | 1W / 4L |
| Mar 19, 2005 | Maryland Giant RRTournament · View matches | 1,401 | 1,412 | +11 | 8W / 3L |
| Jan 22, 2005 | Maryland Giant RRTournament · View matches | 1,405 | 1,401 | -4 | 6W / 4L |
| Sep 18, 2004 | Maryland Giant RRTournament · View matches | 1,358 | 1,405 | +47+59 / -12 | 7W / 3L |
| Sep 5, 2004 | Maryland CircuitTournament · View matches | 1,391 | 1,358 | -33+6 / -39 | 2W / 3L |
| Aug 21, 2004 | Maryland Giant RRTournament · View matches | 1,411 | 1,391 | -20+25 / -45 | 1W / 9L |
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