Event: Division 3

Opponent Rating Result
Juan Mollins 0 0 - 1
Nigel Wilcox 1595 0 - 1
Ben Searle 1343 0 - 1
Vicky Sherley-Price 1575 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

928 = (4513 + 400 * (1 - 3)) / 4)

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