Event: Division 1

Opponent Rating Result
Oleg Barantsev 2078 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1678 = (2078 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
Ted Black 1800 0 - 1
Peter L Dallas 1744 1 - 0
Paul Eyles 1414 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1786 = (4958 + 400 * (2 - 1)) / 3)