Event: NSDCA Division 4

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Opponent Rating Result
Philip Grocott 1348 ½ - ½
Rowan J Webb 1271 1 - 0
Neil Hankey 1165 1 - 0
Rob Aked 1295 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1570 = (5079 + 400 * (3 - 0)) / 4)

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