Event: Division 1

Opponent Rating Result
David H Coates 2048 ½ - ½
Jonathan A Tait 2155 ½ - ½
Michael A Naylor-Eade 1943 0 - 1
Sammy Benzaira 1954 1 - 0
Peter JE Ackley 2113 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2043 = (10213 + 400 * (1 - 1)) / 5)

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