Event: Pre-Season Swiss

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Opponent Rating Result
Leslie J Fancourt 1595 0 - 1
Charlie G Swinson 1166 ½ - ½
Danny L Williams 1000 1 - 0
Colin Abell 1552 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1228 = (5313 + 400 * (1 - 2)) / 4)

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