Wins
24
Indexed tournament wins
Player record
Diffley, Tom
Losses
17
Indexed tournament losses
Matches
41
Decisive results
Win rate
58.5%
Across indexed matches
Peak rating
1,316
Highest rating in the available history.
Biggest upset
Cockrell, Richard
Air Traffic Spring Open · Mar 21, 1999 · +482 rating
Open →Biggest loss
Jeff Lien
Minnesota Open Team Championsh · Nov 14, 1999 · -372 rating
Open →Most frequent opponent
Brian Monson
2 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
5 tournament appearances · synced Aug 11, 2026, 2:23 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Feb 4, 2001 | Star of The North State GamesTournament · View matches | 1,082 | 1,316 | +234 | 9W / 2L |
| Nov 14, 1999 | Minnesota Open Team ChampionshTournament · View matches | 1,264 | 1,082 | -182 | 4W / 8L |
| Sep 19, 1999 | Northwest OpenTournament · View matches | 1,269 | 1,264 | -5+0 / -5 | 0W / 2L |
| Mar 21, 1999 | Air Traffic Spring OpenTournament · View matches | 1,056 | 1,269 | +213 | 7W / 2L |
| Jan 24, 1999 | 1999 Star of the North State GTournament · View matches · Initial rating 1,056 | Unrated | 1,056 | — | 4W / 3L |
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