Wins
391
Indexed tournament wins
Player record
Slawomir Marczak
Losses
248
Indexed tournament losses
Matches
639
Decisive results
Win rate
61.2%
Across indexed matches
Peak rating
2,005
Highest rating in the available history.
Biggest upset
Wang, Yin
2008 Gate City Open · Apr 6, 2008 · +376 rating
Open →Biggest loss
Bakir, Ozjan
Quincy July Open · Jul 27, 2008 · -627 rating
Open →Most frequent opponent
Michael Baylies
13 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
72 tournament appearances · synced Aug 7, 2026, 3:14 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Apr 3, 2011 | RI Spring Open 2011Tournament · View matches | 1,970 | 1,965 | -5+2 / -7 | 1W / 2L |
| Feb 27, 2011 | QTTC February OpenTournament · View matches | 1,964 | 1,970 | +6+13 / -7 | 3W / 2L |
| Oct 8, 2009 | Huntsman World Senior GamesTournament · View matches | 1,879 | 1,964 | +85 | 4W / 4L |
| Jul 26, 2009 | QTTC July OpenTournament · View matches | 1,880 | 1,879 | -1 | 6W / 3L |
| Jun 28, 2009 | QTTC June OpenTournament · View matches | 1,888 | 1,880 | -8+10 / -18 | 3W / 4L |
| Mar 29, 2009 | QTTC March OpenTournament · View matches | 1,871 | 1,888 | +17+21 / -4 | 5W / 2L |
| Mar 15, 2009 | Frank Dwelly CupTournament · View matches | 1,871 | 1,871 | 0+2 / -2 | 4W / 3L |
| Feb 22, 2009 | QTTC February OpenTournament · View matches | 1,907 | 1,871 | -36+0 / -36 | 3W / 3L |
| Jan 25, 2009 | QTTC January OpenTournament · View matches | 1,950 | 1,907 | -43+5 / -48 | 6W / 3L |
| Dec 20, 2008 | USATT Nationals ChampionshipsTournament · View matches | 1,901 | 1,950 | +49+60 / -11 | 6W / 5L |
| Dec 14, 2008 | 2008 Galina Cup ChampionshipTournament · View matches | 1,896 | 1,901 | +5+7 / -2 | 6W / 3L |
| Nov 23, 2008 | Quincy November OpenTournament · View matches | 1,887 | 1,896 | +9+25 / -16 | 10W / 1L |
| Oct 26, 2008 | Quincy October OpenTournament · View matches | 1,906 | 1,887 | -19+22 / -41 | 5W / 3L |
| Sep 21, 2008 | Quincy September OpenTournament · View matches | 1,943 | 1,906 | -37+9 / -46 | 4W / 4L |
| Aug 24, 2008 | Quincy August OpenTournament · View matches | 1,930 | 1,943 | +13 | 8W / 3L |
| Aug 10, 2008 | Guruswamy Memorial CupTournament · View matches | 1,920 | 1,930 | +10+10 / 0 | 7W / 1L |
| Jul 27, 2008 | Quincy July OpenTournament · View matches | 1,926 | 1,920 | -6+19 / -25 | 8W / 1L |
| May 10, 2008 | Maine Spring OpenTournament · View matches | 2,001 | 1,926 | -75+0 / -75 | 11W / 2L |
| Apr 27, 2008 | Quincy April OpenTournament · View matches · USATT readjusted 1,909 → 1,967 | 1,909 | 2,001 | +34+37 / -3 | 8W / 1L |
| Apr 6, 2008 | 2008 Gate City OpenTournament · View matches | 1,844 | 1,909 | +65+70 / -5 | 6W / 3L |
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