Event: City Chess Swiss 2016-17

Opponent Rating Result
Charles HJ Davie 0 1 - 0
Neil T Davies 0 1 - 0
Alan Freedman 0 1 - 0
Lee Adeola 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

400 = (0 + 400 * (4 - 0)) / 4)

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Opponent Rating Result
Bertrand A Barlow 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

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