Event: Silver Rook

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Opponent	Rating	Result
Shane Inglis	1669	1 - 0
Jonathon Day	1743	1 - 0
Robert Mitchell	1681	½ - ½

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

1964 = (5093 + 400 * (2 - 0)) / 3)