Wins
67
Indexed tournament wins
Player record
Osborne, John
Losses
223
Indexed tournament losses
Matches
290
Decisive results
Win rate
23.1%
Across indexed matches
Peak rating
1,634
Highest rating in the available history.
Biggest upset
Brian Fowler
Zaq Zainal Open · Oct 23, 1999 · +428 rating
Open →Biggest loss
Gutierrez, Ricardo
Schaumburg Open · Jun 20, 1998 · -264 rating
Open →Most frequent opponent
Perelmuter, Joe
7 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
40 tournament appearances · synced Aug 8, 2026, 2:18 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| May 30, 1999 | St. Joseph Valley OpenTournament · View matches | 1,402 | 1,415 | +13+18 / -5 | 4W / 11L |
| May 8, 1999 | Schaumburg OpenTournament · View matches | 1,409 | 1,402 | -7 | 1W / 6L |
| Apr 3, 1999 | Schaumburg 13 Anni No Waiting Tournament · View matches | 1,470 | 1,409 | -61 | 3W / 3L |
| Mar 28, 1999 | South Bend OpenTournament · View matches · USATT readjusted 1,381 → 1,437 | 1,381 | 1,470 | +33+40 / -7 | 4W / 6L |
| Feb 20, 1999 | Steve Ezzo No Waiting RR OpenTournament · View matches | 1,432 | 1,381 | -51+6 / -57 | 1W / 5L |
| Jan 31, 1999 | South Bend Winter OpenTournament · View matches | 1,457 | 1,432 | -25+2 / -27 | 1W / 7L |
| Jan 16, 1999 | Schaumburg $1100 RR OpenTournament · View matches | 1,501 | 1,457 | -44+18 / -62 | 2W / 8L |
| Oct 10, 1998 | Schaumburg $1200 RR Equal OpenTournament · View matches | 1,501 | 1,501 | 0+0 / 0 | 0W / 5L |
| Aug 29, 1998 | Schaumburg $1110 RR OpenTournament · View matches | 1,511 | 1,501 | -10+0 / -10 | 0W / 6L |
| Jun 28, 1998 | South Bend Giant RRTournament · View matches | 1,515 | 1,511 | -4+12 / -16 | 2W / 3L |
| Jun 20, 1998 | Schaumburg OpenTournament · View matches | 1,485 | 1,515 | +30 | 4W / 5L |
| Apr 25, 1998 | Schaumburg TT 12th AnniversaryTournament · View matches | 1,509 | 1,485 | -24 | 0W / 7L |
| Feb 21, 1998 | Schaumburg $1110 February OpenTournament · View matches | 1,540 | 1,509 | -31+0 / -31 | 0W / 8L |
| Jan 17, 1998 | Schaumburg $1000 January OpenTournament · View matches | 1,528 | 1,540 | +12+13 / -1 | 1W / 4L |
| Dec 13, 1997 | Schaumburg Christmas RR OpenTournament · View matches | 1,533 | 1,528 | -5+8 / -13 | 3W / 2L |
| Jun 28, 1997 | Schaumburg RR OpenTournament · View matches | 1,542 | 1,533 | -9+16 / -25 | 1W / 4L |
| May 31, 1997 | Schaumburg OpenTournament · View matches | 1,569 | 1,542 | -27+1 / -28 | 1W / 7L |
| Mar 29, 1997 | Schaumburg 11th Anniversary OpTournament · View matches | 1,530 | 1,569 | +39 | 4W / 5L |
| Aug 24, 1996 | Schaumburg Sears 2-Men RR TuneTournament · View matches | 1,486 | 1,530 | +44+45 / -1 | 2W / 7L |
| Jul 27, 1996 | Schaumburg OpenTournament · View matches · Initial rating 1,486 | Unrated | 1,486 | — | 0W / 7L |
21–40 of 40
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