Event: Division C

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Opponent Rating Result
Oliver Nunn 1450 0 - 1
Steve G Hughes 1514 ½ - ½
Graham Smith 1527 ½ - ½
Colin Wilks 1519 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1303 = (6010 + 400 * (0 - 2)) / 4)

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