Event: Autumn OTB Division 1

Opponent Rating Result
Helal Ahmed 1765 ½ - ½
David Kierman 1750 0 - 1
Adam Tyton 1908 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1541 = (5423 + 400 * (0 - 2)) / 3)

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