Event: Division Three

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Opponent Rating Result
Thomas Page 0 0 - 1
Fen Chen 0 0 - 1
John M McGann 1180 1 - 0
David Steyn 0 1 - 0
Bodhana Sivanandan 1545 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

465 = (2725 + 400 * (2 - 3)) / 5)

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