Event: Division 1

Opponent Rating Result
Andrew E Robertson 1868 ½ - ½
Peter Jaszkiwskyj 1990 1 - 0
Malcolm P Kingsley 1850 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1903 = (5708 + 400 * (1 - 1)) / 3)

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