Event: Clough (Handicap)

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Opponent	Rating	Result
Martin Bond	1036	1 - 0
Ellis Howard	1641	0 - 1
Geoff Briggs	1345	0 - 1

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1207 = (4022 + 400 * (1 - 2)) / 3)