Event: Division 1

Opponent Rating Result
Peter Kirby 2018 ½ - ½
Edward Small 1821 ½ - ½
Gary R Andriessen 1901 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1913 = (5740 + 400 * (0 - 0)) / 3)

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