Event: SCCU County Championship: u1450

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Opponent	Rating	Result
Robert Twigg	1403	0 - 1
Lucy Emery	1370	1 - 0
Louis Salussolia	1302	0 - 1

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

1225 = (4075 + 400 * (1 - 2)) / 3)