Event: Denis Otter

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Opponent	Rating	Result
Shaun Tumelty	95	1 - 0
Ray Sutcliffe	0	1 - 0
Eric Mansfield	0	½ - ½

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

298 = (95 + 400 * (2 - 0)) / 3)