Event: Silver Rook

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Opponent	Rating	Result
Anthony A Gilpin	1770	½ - ½
Koby Dickson	1507	½ - ½
Martin Baxter	1677	1 - 0

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

1785 = (4954 + 400 * (1 - 0)) / 3)