Event: Gordon Nobbs League

Opponent Rating Result
Martin Quinn 142 0 - 1
Martin Quinn 142 ½ - ½
Derek J Scantlebury 106 ½ - ½
Brian Medhurst 122 1 - 0
Derek J Scantlebury 106 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

204 = (618 + 400 * (2 - 1)) / 5)

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