Event: Baum Trophy summer league

Opponent Rating Result
David McNish 1694 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1294 = (1694 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
Ralph McHugh 1257 1 - 0
Biel Obiols 1650 0 - 1
Jonathan Newby 1551 1 - 0
Biel Obiols 1650 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1527 = (6108 + 400 * (2 - 2)) / 4)