Event: Division 1

Opponent Rating Result
Lucy Bennet-Stevens 165 1 - 0
Graham Ewens 151 1 - 0
Paul A Batchelor 174 ½ - ½
Peter Larwood 164 ½ - ½
Nicholas H Skinner 153 ½ - ½
Michael D Nicholas 180 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

298 = (987 + 400 * (2 - 0)) / 6)

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