Event: Division 4

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Opponent Rating Result
John Prout 107 ½ - ½
S Ali Arshad 90 0 - 1
Les Hall 90 1 - 0
Christopher Brian 90 1 - 0
James Topp 102 1 - 0
Paul Clapham 101 ½ - ½
Les Hall 90 0 - 1
S Ali Arshad 90 1 - 0
Mohammed Farah 90 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

228 = (850 + 400 * (5 - 2)) / 9)

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Opponent Rating Result
Kobus Nienaber 90 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

490 = (90 + 400 * (1 - 0)) / 1)