Event: Dons Christmas Allegro

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Opponent Rating Result
David A LeMoir 2188 ½ - ½
Tal Wood 0 0 - 1
David J Payne 1812 0 - 1
Johnny Danger 1520 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1080 = (5520 + 400 * (0 - 3)) / 4)

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