Event: Summer Knights

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Opponent	Rating	Result
Arnold Hunt	1563	½ - ½
Shir Bar Tal	1516	1 - 0
Michael Gilyatt	1560	1 - 0

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1813 = (4639 + 400 * (2 - 0)) / 3)