Event: Open Division 1 B

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Opponent	Rating	Result
Kamil M Celinski	0	0 - 1
Martin G Walker	0	1 - 0
Partha Mulay	0	1 - 0
Timur Kuzhelev	0	½ - ½
Dominic Bartram	0	1 - 0

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

160 = (0 + 400 * (3 - 1)) / 5)