Wins
205
Indexed tournament wins
Player record
Derek Borysiewicz
Losses
278
Indexed tournament losses
Matches
483
Decisive results
Win rate
42.4%
Across indexed matches
Peak rating
2,005
Highest rating in the available history.
Biggest upset
Byung Jo Bae
Rockford Thanksgiving Open · Nov 22, 2009 · +293 rating
Open →Biggest loss
Eric Arnett
Highland Open · Nov 18, 2007 · -518 rating
Open →Most frequent opponent
Benjamin Gross
8 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
58 tournament appearances · synced Aug 26, 2026, 2:23 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| May 22, 2005 | St. Joseph Valley OpenTournament · View matches | 1,674 | 1,670 | -4+8 / -12 | 4W / 3L |
| Apr 24, 2005 | Buckeye Open 2005Tournament · View matches | 1,579 | 1,674 | +95 | 6W / 7L |
| Apr 10, 2005 | Killerspin RR Spring Open 2005Tournament · View matches | 1,590 | 1,579 | -11+7 / -18 | 1W / 7L |
| Feb 26, 2005 | Schaumburg February OpenTournament · View matches | 1,553 | 1,590 | +37+44 / -7 | 2W / 6L |
| Dec 28, 2004 | Killerspin Holiday Classic OpenTournament · View matches | 1,553 | 1,553 | 0+5 / -5 | 3W / 3L |
| Dec 18, 2004 | Schaumburg Christmas OpenTournament · View matches | 1,463 | 1,553 | +90 | 4W / 4L |
| Nov 6, 2004 | Schaumburg OpenTournament · View matches | 1,492 | 1,463 | -29+2 / -31 | 1W / 7L |
| Oct 17, 2004 | Highland OpenTournament · View matches | 1,470 | 1,492 | +22+35 / -13 | 1W / 6L |
| Sep 25, 2004 | Schaumburg OpenTournament · View matches | 1,447 | 1,470 | +23+26 / -3 | 4W / 5L |
| Aug 7, 2004 | Schaumburg OpenTournament · View matches | 1,422 | 1,447 | +25 | 4W / 3L |
| Jun 26, 2004 | Schaumburg US Open Tune-up RR Tournament · View matches | 1,412 | 1,422 | +10+45 / -35 | 4W / 6L |
| May 22, 2004 | Schaumburg OpenTournament · View matches | 1,425 | 1,412 | -13+16 / -29 | 1W / 6L |
| Apr 10, 2004 | Schaumburg OpenTournament · View matches | 1,426 | 1,425 | -1+9 / -10 | 2W / 3L |
| Mar 27, 2004 | Glenview March Round RobinTournament · View matches | 1,437 | 1,426 | -11 | 2W / 4L |
| Feb 21, 2004 | Schaumburg RR OpenTournament · View matches | 1,465 | 1,437 | -28 | 3W / 9L |
| Dec 29, 2003 | Killerspin Open 2003Tournament · View matches | 1,313 | 1,465 | +152 | 7W / 5L |
| Nov 22, 2003 | Schaumburg RR OpenTournament · View matches | 1,346 | 1,313 | -33 | 5W / 5L |
| Oct 18, 2003 | Schaumburg OpenTournament · View matches · Initial rating 1,346 | Unrated | 1,346 | — | 4W / 4L |
41–58 of 58
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