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
Van Wright, William
24 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
72 tournament appearances · synced Aug 9, 2026, 4:21 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Jul 24, 2004 | Maryland Giant RRTournament · View matches | 1,433 | 1,411 | -22+18 / -40 | 10W / 1L |
| May 15, 2004 | Maryland Giant RRTournament · View matches | 1,405 | 1,433 | +28+61 / -33 | 6W / 10L |
| May 2, 2004 | Maryland CircuitTournament · View matches | 1,352 | 1,405 | +53+59 / -6 | 4W / 2L |
| Apr 17, 2004 | Maryland State ClosedTournament · View matches | 1,358 | 1,352 | -6 | 0W / 9L |
| Mar 20, 2004 | Maryland Giant RRTournament · View matches | 1,435 | 1,358 | -77+18 / -95 | 5W / 3L |
| Mar 7, 2004 | Maryland CircuitTournament · View matches | 1,402 | 1,435 | +33+35 / -2 | 5W / 1L |
| Feb 21, 2004 | Maryland Giant RRTournament · View matches | 1,392 | 1,402 | +10 | 7W / 3L |
| Jan 11, 2004 | Maryland CircuitTournament · View matches | 1,453 | 1,392 | -61+8 / -69 | 4W / 5L |
| Oct 18, 2003 | Maryland Giant RRTournament · View matches | 1,435 | 1,453 | +18+36 / -18 | 2W / 7L |
| Sep 20, 2003 | Maryland Giant RRTournament · View matches | 1,438 | 1,435 | -3+4 / -7 | 1W / 8L |
| Jul 26, 2003 | Maryland Giant RRTournament · View matches | 1,310 | 1,438 | +128 | 7W / 0L |
| Jun 21, 2003 | Maryland Giant RRTournament · View matches | 1,312 | 1,310 | -2+0 / -2 | 0W / 9L |
| May 17, 2003 | Maryland Giant RRTournament · View matches | 1,285 | 1,312 | +27+28 / -1 | 5W / 2L |
| May 4, 2003 | Maryland CircuitTournament · View matches | 1,294 | 1,285 | -9+11 / -20 | 6W / 3L |
| Apr 6, 2003 | Maryland CircuitTournament · View matches | 1,287 | 1,294 | +7+15 / -8 | 6W / 2L |
| Mar 9, 2003 | Maryland CircuitTournament · View matches | 1,286 | 1,287 | +1+6 / -5 | 2W / 3L |
| Feb 22, 2003 | Maryland Giant RRTournament · View matches | 1,280 | 1,286 | +6 | 3W / 1L |
| Feb 9, 2003 | Maryland CircuitTournament · View matches | 1,283 | 1,280 | -3+3 / -6 | 2W / 2L |
| Oct 26, 2002 | Maryland Giant RRTournament · View matches | 1,336 | 1,283 | -53+10 / -63 | 5W / 4L |
| Sep 28, 2002 | Maryland Giant RRTournament · View matches | 1,343 | 1,336 | -7 | 4W / 8L |