Event: GP3 - November

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Opponent Rating Result
James Lumsden 1760 0 - 1
Rose Burgess 1430 0 - 1
Mick Sullivan 657 1 - 0
Sharon Merchant 1372 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1305 = (5219 + 400 * (2 - 2)) / 4)

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