Event: The Friendly League

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Opponent Rating Result
Patricia K Talbot 0 1 - 0
Colin Sinclair 0 0 - 1
Peter Logan 1555 0 - 1
Ian Mitchell 1586 1 - 0
Shaun Tumelty 1480 ½ - ½
Ronnie Sutton 935 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

993 = (5556 + 400 * (3 - 2)) / 6)

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Opponent Rating Result
Gordon L Glover 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-400 = (0 + 400 * (0 - 1)) / 1)