Event: Winter Club Div 2

Opponent Rating Result
Kobus Nienaber 1435 ½ - ½
Lee T Tilton 1443 0 - 1
George P Jelliss 1315 0 - 1
George Bulbeck 1300 1 - 0
Pawel Stanny 1308 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1200 = (6801 + 400 * (1 - 3)) / 5)

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