Event: Summer League Division 3

Opponent Rating Result
Alan S McIntosh 1821 1 - 0
Ken A McIntosh 1813 ½ - ½
Joseph B Bradey 1856 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2097 = (5490 + 400 * (2 - 0)) / 3)

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