Event: NSDCA Division 2

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Opponent Rating Result
Neville Layhe 1690 1 - 0
Alberto Gissi 1630 0 - 1
Railton W Hyde 1763 1 - 0
Caroline L Mountford 1602 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1871 = (6685 + 400 * (3 - 1)) / 4)

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