Event: Division One

Opponent Rating Result
Manfred J Egby 1773 1 - 0
David J Turner 1710 1 - 0
David V Deane 1803 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2162 = (5286 + 400 * (3 - 0)) / 3)

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