Event: Junior Rapidplay

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Opponent	Rating	Result
Niamh Grace	1100	1 - 0
Chris Bourne	819	1 - 0
James Beecroft	1038	0 - 1

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

1119 = (2957 + 400 * (2 - 1)) / 3)