Event: Summer League Division 3

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Opponent Rating Result
Silas Dowrick-Hammond 0 1 - 0
Michael W Simmons 1167 ½ - ½
Keith Gilkes 0 ½ - ½
Les P Day 1610 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

694 = (2777 + 400 * (1 - 1)) / 4)

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