Event: Bishop 2019-20

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Opponent Rating Result
Samuel Biddiss 0 1 - 0
Nick Warren 145 0 - 1
Roger Waddingham 105 0 - 1
Marian Trofin 110 0 - 1
W John Marshall 146 1 - 0
Monika Hosker 69 0 - 1
Peter J Helliwell 109 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

41 = (684 + 400 * (3 - 4)) / 7)

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