Event: South Cheshire Shield

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Opponent Rating Result
Raymond F Rhodes 1227 ½ - ½
Jay Swann 1400 0 - 1
Tony Rossiter 1250 0 - 1
Steve Ballantyne 1361 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1010 = (5238 + 400 * (0 - 3)) / 4)

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