Event: South Cheshire Shield

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Opponent Rating Result
Neil Hankey 90 1 - 0
Harry Gardiner 90 1 - 0
David E Ashby 90 0 - 1
Neil Hankey 90 1 - 0
David E Ashby 90 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

250 = (450 + 400 * (3 - 1)) / 5)

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