Wins
49
Indexed tournament wins
Player record
Onishi, Seishi
Losses
34
Indexed tournament losses
Matches
83
Decisive results
Win rate
59.0%
Across indexed matches
Peak rating
1,935
Highest rating in the available history.
Biggest upset
Rudesill, David
Sacramento Fall Open · Oct 24, 1998 · +215 rating
Open →Biggest loss
Tin Quach
Golden Gate Open on the North · Jun 25, 2000 · -243 rating
Open →Most frequent opponent
Auria Malek
3 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
9 tournament appearances · synced Aug 12, 2026, 2:19 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Jun 25, 2000 | Golden Gate Open on the North Tournament · View matches | 1,933 | 1,887 | -46+6 / -52 | 3W / 4L |
| May 13, 2000 | Sac Open Singles & Team TournamentTournament · View matches | 1,935 | 1,933 | -2+1 / -3 | 1W / 2L |
| Dec 19, 1999 | US NationalsTournament · View matches | 1,903 | 1,935 | +32 | 12W / 6L |
| Oct 16, 1999 | Sac-Rec October OpenTournament · View matches | 1,889 | 1,903 | +14+21 / -7 | 8W / 2L |
| May 8, 1999 | Sac-Rec Spring OpenTournament · View matches | 1,842 | 1,889 | +47 | 7W / 1L |
| Mar 7, 1999 | Sacramento Open 2 StarTournament · View matches | 1,856 | 1,842 | -14+8 / -22 | 5W / 4L |
| Oct 24, 1998 | Sacramento Fall OpenTournament · View matches | 1,812 | 1,856 | +44+77 / -33 | 6W / 5L |
| Jan 31, 1998 | Sac-Rec Winter OpenTournament · View matches | 1,767 | 1,812 | +45+58 / -13 | 4W / 4L |
| Nov 15, 1997 | Sac-Rec Fall Fun-for-all OpenTournament · View matches · Initial rating 1,767 | Unrated | 1,767 | -16+25 / -41 | 3W / 6L |
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