Event: Division 4

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Opponent Rating Result
Grenville Cross 92 1 - 0
Peter Shaw 100 0 - 1
James Topp 102 0 - 1
Les Hall 90 1 - 0
Joshua T Brown 90 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

175 = (474 + 400 * (3 - 2)) / 5)

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