Event: Hillingdon Div 2

Opponent Rating Result
Michael C Price 1698 0 - 1
Mary Helen Deans 1659 0 - 1
Alastair G Johnstone 1600 0 - 1
Joseph Hamilton 1731 0 - 1
Kyal Shah 1656 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1269 = (8344 + 400 * (0 - 5)) / 5)

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