Event: Autumn OTB Division 4

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Opponent Rating Result
Terry Cowling 1653 ½ - ½
Andrew Cowan 1623 0 - 1
Davaa Otgonbayar 1398 1 - 0
Peter H Taylor 1608 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1571 = (6282 + 400 * (1 - 1)) / 4)

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