Event: Division 1

Opponent Rating Result
Jamie Beviss 145 1 - 0
Theo Gough 130 ½ - ½
Gerry N Jepps 152 0 - 1
Simon Pickard 144 ½ - ½
James E Fewkes 146 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

63 = (717 + 400 * (1 - 2)) / 5)

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