Event: Division One

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Opponent Rating Result
Malcolm A Hunt 180 ½ - ½
Anthony J Green 168 1 - 0
John Mangwengwende 175 ½ - ½
David M Cooper 172 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

374 = (695 + 400 * (2 - 0)) / 4)

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Opponent Rating Result
Ian Emery 164 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

164 = (164 + 400 * (0 - 0)) / 1)