Event: 9th South Cheshire Shield

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Opponent Rating Result
Joe Hirst 148 0 - 1
Harry Gardiner 131 ½ - ½
Harry Gardiner 131 1 - 0
Julian Bulbeck 101 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

228 = (511 + 400 * (2 - 1)) / 4)

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