Event: South Cheshire Shield

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Opponent Rating Result
Steve Whatmore 1819 1 - 0
John R Booth 1847 1 - 0
Mycle Scheuer 1480 1 - 0
David S Johnson 1591 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2084 = (6737 + 400 * (4 - 0)) / 4)

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