Wins
17
Indexed tournament wins
Player record
Opperman, John
Losses
50
Indexed tournament losses
Matches
67
Decisive results
Win rate
25.4%
Across indexed matches
Peak rating
1,693
Highest rating in the available history.
Biggest upset
Slade, Ivan
Meiklejohn North American Seni · Jun 3, 2007 · +463 rating
Open →Biggest loss
Kahan, Stanley
Sun City Open Senior TTT · May 1, 1999 · -486 rating
Open →Most frequent opponent
Egel, Leo
5 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
19 tournament appearances · synced Aug 11, 2026, 2:24 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Jun 6, 2010 | Meiklejohn North American Seniors OpenTournament · View matches | 1,331 | 1,290 | -41+4 / -45 | 1W / 3L |
| Jun 7, 2009 | Meiklejohn North American SeniTournament · View matches | 1,327 | 1,331 | +4+4 / 0 | 1W / 1L |
| Jun 8, 2008 | Meiklejohn North American SeniorsTournament · View matches | 1,343 | 1,327 | -16+1 / -17 | 1W / 2L |
| Jun 3, 2007 | Meiklejohn North American SeniTournament · View matches | 1,302 | 1,343 | +41+50 / -9 | 2W / 2L |
| Oct 12, 2006 | Huntsman World Senior GamesTournament · View matches | 1,355 | 1,302 | -53+2 / -55 | 1W / 7L |
| Jun 4, 2006 | Meiklejohn North American SeniorsTournament · View matches | 1,325 | 1,355 | +30 | 1W / 1L |
| Jun 5, 2005 | Meiklejohn National Seniors OpTournament · View matches | 1,393 | 1,325 | -68+3 / -71 | 1W / 3L |
| Nov 22, 2004 | Power Pong OpenTournament · View matches | 1,420 | 1,393 | -27 | 1W / 3L |
| Oct 8, 2004 | Huntsman World Senior GamesTournament · View matches | 1,435 | 1,420 | -15+1 / -16 | 2W / 5L |
| Jun 6, 2004 | Meiklejohn National SeniorsTournament · View matches | 1,493 | 1,435 | -58+0 / -58 | 1W / 2L |
| Mar 7, 2004 | Power Pong OpenTournament · View matches | 1,502 | 1,493 | -9+0 / -9 | 0W / 3L |
| Jun 8, 2003 | Meiklejohn National SeniorsTournament · View matches | 1,504 | 1,502 | -2 | 0W / 1L |
| Jun 9, 2002 | 2002 Meiklejohn Nat Sr TTTTournament · View matches | 1,519 | 1,504 | -15 | 2W / 2L |
| Jun 4, 2000 | Meiklejohn National Senior TTTTournament · View matches | 1,569 | 1,519 | -50+2 / -52 | 2W / 2L |
| May 1, 1999 | Sun City Open Senior TTTTournament · View matches | 1,644 | 1,569 | -75+0 / -75 | 0W / 2L |
| Dec 20, 1998 | 1998 USATT NationalsTournament · View matches | 1,679 | 1,644 | -35+0 / -35 | 1W / 2L |
| Jun 14, 1998 | Mieklejohn SeniorsTournament · View matches | 1,679 | 1,679 | 0+0 / 0 | 0W / 2L |
| May 2, 1998 | Sun City Open Senior TTTTournament · View matches | 1,693 | 1,679 | -14 | 0W / 2L |
| Dec 7, 1997 | 1997 2nd Annual US Nationals "Tournament · View matches · Initial rating 1,693 | Unrated | 1,693 | — | 0W / 5L |
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