Event: Christmas Allegro

Opponent Rating Result
David Scott 1837 0 - 1
Andrew S Pandian 1450 ½ - ½
Yosif A Antonov 1757 0 - 1
David C May 1499 ½ - ½
Armando Galletti 1665 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1402 = (8208 + 400 * (0 - 3)) / 5)

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