Event: Division 6

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Opponent	Rating	Result
Yui Wah Lee	1191	0 - 1
Siobhan Campbell	1392	1 - 0
Richard Kirk	1050	0 - 1

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

1078 = (3633 + 400 * (1 - 2)) / 3)