Event: Rosser Rapid

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Opponent	Rating	Result
Colin L Ellis	1371	0 - 1
Alex Bloomfield	0	1 - 0
Joe Crossley	1507	1 - 0

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

1093 = (2878 + 400 * (2 - 1)) / 3)