Event: Div 5 - P H Charles Trophy

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Opponent Rating Result
Steve Daykin 1344 0 - 1
John M Oughton 1287 ½ - ½
Ehsaan Ali 1227 0 - 1
Martin Wilkes 1253 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

978 = (5111 + 400 * (0 - 3)) / 4)

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