Event: Week 2

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Opponent	Rating	Result
Callum M Kirk	1000	1 - 0
David Millington	1612	1 - 0
David A Hallen	1481	1 - 0

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

1764 = (4093 + 400 * (3 - 0)) / 3)