Event: NSDCA Division 4

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Opponent Rating Result
Rob Aked 1295 1 - 0
Roger Coleman 1241 1 - 0
Neville S Jones 1508 1 - 0
Cristian-Gabriel Dragan 1384 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1657 = (5428 + 400 * (3 - 0)) / 4)

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