Event: OTB Club Championship

Opponent Rating Result
A Fin O'Regan 1068 1 - 0
John Cawdery 2086 0 - 1
Nigel White 1472 1 - 0
Michael GA Wilson 1660
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1675 = (4626 + 400 * (2 - 1)) / 3)

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