Event: Derby & District Division 3

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Opponent Rating Result
Robert Frost 0 1 - 0
Mohinderpal Samra 1365 1 - 0
Jenny Gartside 1182 1 - 0
Michael O'Brien 1342 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1372 = (3889 + 400 * (4 - 0)) / 4)

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