Wins
598
Indexed tournament wins
Player record
Mark Kobernick
Losses
433
Indexed tournament losses
Matches
1,031
Decisive results
Win rate
58.0%
Across indexed matches
Peak rating
1,857
Highest rating in the available history.
Biggest upset
Tan, Rendinald
Tri-Cities Fall Open Double RR · Oct 19, 2008 · +436 rating
Open →Biggest loss
Pifer, Fletcher
2009 Rose City Open · Jun 28, 2009 · -910 rating
Open →Most frequent opponent
Mason, William
21 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
104 tournament appearances · synced Aug 8, 2026, 3:32 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Dec 6, 1997 | Portland TT Double RRTournament · View matches | 1,650 | 1,684 | +34+46 / -12 | 6W / 4L |
| Nov 16, 1997 | Mini-Pac Rim Oregon ChampionshTournament · View matches | 1,686 | 1,650 | -36 | 4W / 4L |
| Oct 19, 1997 | Tri-Cities Open Fall RRTournament · View matches | 1,721 | 1,686 | -35+16 / -51 | 6W / 4L |
| Oct 12, 1997 | Portland Fall OpenTournament · View matches | 1,747 | 1,721 | -26+8 / -34 | 5W / 7L |
| Jul 26, 1997 | Washington State OpenTournament · View matches | 1,747 | 1,747 | 0+10 / -10 | 3W / 3L |
| Jun 29, 1997 | Rose City OpenTournament · View matches | 1,676 | 1,747 | +71 | 11W / 5L |
| Apr 26, 1997 | Tri-City Spring RRTournament · View matches | 1,716 | 1,676 | -40+5 / -45 | 5W / 5L |
| Dec 22, 1996 | 1996 U.S. NationalsTournament · View matches | 1,712 | 1,716 | +4+87 / -83 | 7W / 10L |
| Nov 10, 1996 | Pacific Rim OpenTournament · View matches | 1,727 | 1,712 | -15+0 / -15 | 1W / 3L |
| Oct 12, 1996 | Tri-Cities Octoberfest RRTournament · View matches | 1,685 | 1,727 | +42+48 / -6 | 6W / 4L |
| Jul 20, 1996 | 1996 Mountlake Summer OpenTournament · View matches | 1,669 | 1,685 | +16 | 4W / 2L |
| Jun 23, 1996 | Rose City OpenTournament · View matches | 1,689 | 1,669 | -20+0 / -20 | 5W / 6L |
| May 5, 1996 | 1996 Seattle OpenTournament · View matches | 1,739 | 1,689 | -50+0 / -50 | 2W / 2L |
| Apr 20, 1996 | Tri-City RRTournament · View matches | 1,746 | 1,739 | -7+2 / -9 | 6W / 3L |
| Apr 6, 1996 | Mountlake Open TTTTournament · View matches | 1,658 | 1,746 | +88 | 7W / 3L |
| Nov 5, 1995 | Pacific Rim OpenTournament · View matches | 1,666 | 1,658 | -8+42 / -50 | 3W / 3L |
| Aug 19, 1995 | Portland OpenTournament · View matches | 1,752 | 1,666 | -86 | 2W / 5L |
| Jul 9, 1995 | US OpenTournament · View matches | 1,741 | 1,752 | +11 | 10W / 8L |
| Jun 18, 1995 | Rose City OpenTournament · View matches | 1,725 | 1,741 | +16+16 / 0 | 2W / 1L |
| Dec 18, 1994 | US NationalsTournament · View matches | 1,460 | 1,725 | +265 | 17W / 7L |