Wins
90
Indexed tournament wins
Player record
Ostermann, Karl
Losses
69
Indexed tournament losses
Matches
159
Decisive results
Win rate
56.6%
Across indexed matches
Peak rating
1,721
Highest rating in the available history.
Biggest upset
Frank Roth
1995 Pennsylvania Team Championship · Mar 26, 1995 · +194 rating
Open →Biggest loss
Farzin, Jalilalghadr
PA Team Tournament · Mar 19, 2006 · -283 rating
Open →Most frequent opponent
Ronald Arcaro
6 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
17 tournament appearances · synced Aug 10, 2026, 2:19 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Oct 24, 2010 | 2010 Millcreek OpenTournament · View matches | 1,693 | 1,721 | +28+40 / -12 | 10W / 3L |
| Mar 28, 2010 | 2010 Millcreek Giant RRTournament · View matches | 1,687 | 1,693 | +6+33 / -27 | 4W / 4L |
| Oct 25, 2009 | 2009 Millcreek OpenTournament · View matches | 1,549 | 1,687 | +138 | 11W / 4L |
| Mar 19, 2006 | PA Team TournamentTournament · View matches | 1,615 | 1,549 | -66+17 / -83 | 3W / 9L |
| Nov 6, 2005 | 2005 Millcreek OpenTournament · View matches | 1,613 | 1,615 | +2 | 2W / 2L |
| Oct 18, 1998 | 1998 Millcreek OpenTournament · View matches | 1,626 | 1,613 | -13+32 / -45 | 3W / 3L |
| Oct 19, 1997 | 1997 Millcreek OpenTournament · View matches | 1,623 | 1,626 | +3+29 / -26 | 4W / 4L |
| Apr 20, 1997 | 1997 Millcreek Giant RRTournament · View matches | 1,633 | 1,623 | -10 | 4W / 5L |
| Dec 1, 1996 | U.S. Open Team ChampionshipsTournament · View matches | 1,534 | 1,633 | +99 | 15W / 5L |
| Nov 3, 1996 | 1996 Millcreek OpenTournament · View matches | 1,550 | 1,534 | -16+20 / -36 | 4W / 2L |
| Aug 18, 1996 | 1996 Sun TV OpenTournament · View matches | 1,550 | 1,550 | 0+26 / -26 | 3W / 5L |
| Nov 5, 1995 | 1995 Millcreek OpenTournament · View matches | 1,571 | 1,550 | -21+3 / -24 | 2W / 4L |
| Aug 6, 1995 | Keystone State GamesTournament · View matches | 1,599 | 1,571 | -28+12 / -40 | 3W / 3L |
| May 7, 1995 | 1995 Millcreek Giant Round RobinTournament · View matches | 1,603 | 1,599 | -4+33 / -37 | 5W / 3L |
| Mar 26, 1995 | 1995 Pennsylvania Team ChampionshipTournament · View matches | 1,486 | 1,603 | +117 | 6W / 3L |
| Mar 5, 1995 | Pittsburgh OpenTournament · View matches | 1,455 | 1,486 | +31+63 / -32 | 5W / 4L |
| Jan 22, 1995 | Cleveland Winter OpenTournament · View matches | 1,420 | 1,455 | +35 | 6W / 6L |
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