Event: Junior Rapid Play

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Opponent	Rating	Result
Niamh Grace	1105	1 - 0
Thomas W Martin	1477	½ - ½
George Tagg	1229	0 - 1

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

1270 = (3811 + 400 * (1 - 1)) / 3)