Event: Division 2

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Opponent	Rating	Result
Alan Papier	1752	0 - 1
Alex Whelan	1800	1 - 0
Hayden Griffiths	0	0 - 1

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

1051 = (3552 + 400 * (1 - 2)) / 3)