Event: Cobham

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Opponent Rating Result
William Flanders 1381 0 - 1
Hugo Masier 1693 0 - 1
Evan Lam How Yee 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

625 = (3074 + 400 * (0 - 3)) / 3)

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