Wins
17
Indexed tournament wins
Player record
Mark Jeffcoat
Losses
21
Indexed tournament losses
Matches
38
Decisive results
Win rate
44.7%
Across indexed matches
Peak rating
1,522
Highest rating in the available history.
Biggest upset
Jerome Haagen Abbott
Pennsylvania State Closed Cham · Apr 24, 1994 · +309 rating
Open →Biggest loss
John Parry
MATTC September Open · Sep 18, 1994 · -174 rating
Open →Most frequent opponent
Dan Russo
2 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
5 tournament appearances · synced Aug 26, 2026, 2:25 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Nov 12, 1995 | MATTC November OpenTournament · View matches | 1,522 | 1,509 | -13+4 / -17 | 1W / 7L |
| Mar 26, 1995 | 1995 Pennsylvania Team ChampionshipTournament · View matches | 1,512 | 1,522 | +10 | 3W / 0L |
| Feb 11, 1995 | MATTC February OpenTournament · View matches | 1,492 | 1,512 | +20+22 / -2 | 5W / 4L |
| Sep 18, 1994 | MATTC September OpenTournament · View matches | 1,423 | 1,403 | -20+6 / -26 | 2W / 5L |
| Apr 24, 1994 | Pennsylvania State Closed ChamTournament · View matches | 1,234 | 1,423 | +189 | 6W / 5L |
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