Event: Eton Rapidplay 2019

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Opponent Rating Result
Edward Hawkins 71 1 - 0
James Crawley 0 0 - 1
Eleanor Garthside 0 1 - 0
Sagnik Chatterjee 129 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

50 = (200 + 400 * (2 - 2)) / 4)

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