Event: Division 4

Opponent Rating Result
Richard Maconnachie 1323 ½ - ½
Ric Dawson 1345 1 - 0
Oskar Rudczenko 1120 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1529 = (3788 + 400 * (2 - 0)) / 3)

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