Event: Peter Harrison Knockout Cup

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Opponent Rating Result
Benjamin Lappin 1949 0 - 1
Rob E Wilden 1778 ½ - ½
Paul Broadley 1630 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1786 = (5357 + 400 * (1 - 1)) / 3)

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