Event: Examiner League

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Opponent Rating Result
Andrew Batley 1517 ½ - ½
Andrew Batley 1543 1 - 0
Alec Ward 205 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1088 = (3265 + 400 * (1 - 1)) / 3)

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Opponent Rating Result
Dave Gray 1704 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1304 = (1704 + 400 * (0 - 1)) / 1)