Event: Division 4

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Opponent Rating Result
Darpad Sankuratri 1054 1 - 0
John S Burrows 1463 0 - 1
Charles Martin 1233 0 - 1
David Jelfs 1203 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1038 = (4953 + 400 * (1 - 3)) / 4)

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