Event: Peter Harrison Knockout Cup

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Opponent Rating Result
Ian P Blencowe 1595 0 - 1
Matthew Reekie-Black 1589 ½ - ½
Dave R Wingrove 1367 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1250 = (4551 + 400 * (0 - 2)) / 3)

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