Event: Ladder Tournament

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Opponent	Rating	Result
Roger Beeson	1193	1 - 0
Matthew Georgiou	1867	0 - 1
Noel Wright	1538	1 - 0

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

1666 = (4598 + 400 * (2 - 1)) / 3)