Event: OTB 2x64 Championship - Major

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Opponent Rating Result
Terry D Whitton 1960 1 - 0
Philip Staniland 1855 0 - 1
Peter A Nickals 1798 0 - 1
John Cawdery 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1203 = (5613 + 400 * (1 - 3)) / 4)

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