Event: Minor Counties

Opponent Rating Result
Adrian MS Matthews 1833 1 - 0
Brandan Read 1701 1 - 0
Paul A Batchelor 2039 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2124 = (5573 + 400 * (2 - 0)) / 3)

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