Event: South Cheshire Shield

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Opponent Rating Result
Andrew Crosby 1447 1 - 0
Raymond F Rhodes 1236 1 - 0
Alberto Gissi 1669 ½ - ½
Neil Hankey 1095 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1562 = (5447 + 400 * (2 - 0)) / 4)

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