Wins
18
Indexed tournament wins
Player record
Jefts, Duane R.
Losses
15
Indexed tournament losses
Matches
33
Decisive results
Win rate
54.5%
Across indexed matches
Peak rating
1,033
Highest rating in the available history.
Biggest upset
Gilbert, Louis
2008 Saint Peters April Open · Apr 20, 2008 · +156 rating
Open →Biggest loss
Driskill, Ryan
2007 St. Peters April Open · Apr 15, 2007 · -501 rating
Open →Most frequent opponent
Nobs, Lawrence
3 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
4 tournament appearances · synced Aug 13, 2026, 2:32 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Apr 20, 2008 | 2008 Saint Peters April OpenTournament · View matches | 994 | 1,029 | +35 | 9W / 3L |
| Apr 15, 2007 | 2007 St. Peters April OpenTournament · View matches | 1,033 | 994 | -39 | 5W / 4L |
| Sep 10, 2006 | 2006 St. Louis Gateway OpenTournament · View matches | 1,029 | 1,033 | +4+6 / -2 | 1W / 4L |
| Jul 23, 2006 | 2006 Show-Me State GamesTournament · View matches · Initial rating 1,029 | Unrated | 1,029 | — | 3W / 4L |
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