Event: Division 3

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Opponent Rating Result
Stephen Dunning 1618 ½ - ½
Peter Bullough 1371 ½ - ½
Lee Whitford-Stark 1503 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1364 = (4492 + 400 * (0 - 1)) / 3)

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