Event: Holly & the Ivy Chess League

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Opponent Rating Result
Patrick Habron 1200 1 - 0
Murray Purkis 1619 0 - 1
S Asquith 1225 1 - 0
Dave Gray 1733 1 - 0
Angel A Gonzales 1646 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1645 = (7423 + 400 * (3 - 1)) / 5)

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

605 = (205 + 400 * (1 - 0)) / 1)