Event: Christmas Allegro

Opponent Rating Result
Steve N Moore 1927 0 - 1
David J Twitchell 1812 0 - 1
Junaid Ahmed 1139 1 - 0
Jeff R Dawson 1903 ½ - ½
Mervyn J Hughes 1911 0 - 1
John R Wickham 1565 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1510 = (10257 + 400 * (1 - 4)) / 6)

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