Event: NSDCA Division 4

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Opponent Rating Result
Stuart E Hull 1340 ½ - ½
Nick Deakin 1442 0 - 1
Gwyn Price 1093 ½ - ½
Brian Sealey 1200 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1069 = (5075 + 400 * (0 - 2)) / 4)

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