Event: IM Brown Shield

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Opponent	Rating	Result
Luke Postma	0	1 - 0
Neil Griffiths	1562	1 - 0
A Millthorpe	1267	1 - 0

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

1343 = (2829 + 400 * (3 - 0)) / 3)