Event: Reading-Chess-Challengers

Opponent Rating Result
James C Moody 1694 1 - 0
David Johnson 1750 ½ - ½
Stuart W Knox 1902 0 - 1
Ilan G Dwek 1719 0 - 1
Yawar I Jafri 1651 0 - 1
Stuart W Knox 1912 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1638 = (10628 + 400 * (1 - 3)) / 6)

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