Event: Dons Club Challengers

Opponent Rating Result
Biran S Shah 1766 0 - 1
Graham R Jones 1469 0 - 1
Matthew J Morter 1531 1 - 0
Keith Bradley 1572 ½ - ½
Andrew S Pandian 1600
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1485 = (6338 + 400 * (1 - 2)) / 4)

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