Wins
321
Indexed tournament wins
Player record
Daniel Koscielski
Losses
568
Indexed tournament losses
Matches
889
Decisive results
Win rate
36.1%
Across indexed matches
Peak rating
1,368
Highest rating in the available history.
Biggest upset
Tim Boggan
2005 US Nationals Championship · Dec 17, 2005 · +557 rating
Open →Biggest loss
Popatia, Shahid
2000 Midwest & Illinois Closed · Jul 15, 2000 · -705 rating
Open →Most frequent opponent
Hagerstrand, Robert
14 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
109 tournament appearances · synced Aug 8, 2026, 3:34 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Jun 28, 1997 | Schaumburg RR OpenTournament · View matches | 1,307 | 1,308 | +1+37 / -36 | 2W / 7L |
| May 31, 1997 | Schaumburg OpenTournament · View matches · USATT readjusted 1,200 → 1,255 | 1,200 | 1,307 | +52+69 / -17 | 6W / 5L |
| May 25, 1997 | South Bend Memorial Day OpenTournament · View matches | 1,264 | 1,200 | -64 | 7W / 6L |
| Mar 29, 1997 | Schaumburg 11th Anniversary OpTournament · View matches | 1,285 | 1,264 | -21 | 1W / 9L |
| Mar 16, 1997 | South Bend OpenTournament · View matches | 1,256 | 1,285 | +29 | 1W / 7L |
| Dec 1, 1996 | U.S. Open Team ChampionshipsTournament · View matches | 1,250 | 1,256 | +6 | 4W / 5L |
| Nov 10, 1996 | St. Joseph Valley OpenTournament · View matches | 1,281 | 1,250 | -31+8 / -39 | 3W / 8L |
| Sep 8, 1996 | 1996 Sears-Harvard OpenTournament · View matches | 1,277 | 1,281 | +4+10 / -6 | 1W / 1L |
| Aug 24, 1996 | Schaumburg Sears 2-Men RR TuneTournament · View matches | 1,277 | 1,277 | 0+23 / -23 | 5W / 5L |
| Jul 27, 1996 | Schaumburg OpenTournament · View matches | 1,240 | 1,277 | +37 | 4W / 6L |
| Jun 1, 1996 | Schaumburg OpenTournament · View matches | 1,218 | 1,240 | +22 | 4W / 5L |
| Apr 20, 1996 | STT 10th Anniversary Equality Tournament · View matches | 1,228 | 1,218 | -10+13 / -23 | 1W / 10L |
| Feb 18, 1996 | Arizona Open TTTTournament · View matches | 1,313 | 1,228 | -85+0 / -85 | 0W / 15L |
| Dec 18, 1995 | USATT National ChampionshipsTournament · View matches | 1,300 | 1,313 | +13+26 / -13 | 4W / 13L |
| Nov 26, 1995 | US Open Team ChampionshipsTournament · View matches | 1,287 | 1,305 | +18+32 / -14 | 13W / 5L |
| Sep 16, 1995 | Sears/Harvard Sports TTTTournament · View matches | 1,287 | 1,287 | 0+0 / 0 | 0W / 1L |
| Aug 12, 1995 | $1000 Schaumburg Summer OpenTournament · View matches | 1,339 | 1,287 | -52+0 / -52 | 0W / 3L |
| Jun 10, 1995 | Schaumburg "No Waiting" RR OpenTournament · View matches | 1,339 | 1,339 | 0+8 / -8 | 6W / 1L |
| May 29, 1995 | St. Joseph Valley, No. AmericaTournament · View matches | 1,294 | 1,339 | +45 | 4W / 5L |
| Mar 5, 1995 | Arizona Open TTTTournament · View matches | 1,263 | 1,294 | +31+39 / -8 | 6W / 8L |