Event: Walker Shield

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Opponent Rating Result
Mark Towlson 90 1 - 0
Graeme Boxall 99 ½ - ½
Reginald G Pidduck 107 ½ - ½
John L Clarke 104 0 - 1
Malcolm Snashall 107 0 - 1
Malcolm Snashall 107 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

36 = (614 + 400 * (1 - 2)) / 6)

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Opponent Rating Result
Malcolm Snashall 107 0 - 1
Reginald G Pidduck 107 1 - 0
Kenneth Keeler 91 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-32 = (305 + 400 * (1 - 2)) / 3)