Event: Radley

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Opponent Rating Result
Owen Ngai 1461 1 - 0
Alen Joseph Biju 1263 0 - 1
Harry Makepeace 1163 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1429 = (3887 + 400 * (2 - 1)) / 3)

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