Event: U1850

Opponent Rating Result
Frank Zurstiege 1764 1 - 0
Joanne Hutchinson 1748 1 - 0
Jon P Barnes 1735 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2016 = (5247 + 400 * (2 - 0)) / 3)

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