Event: Summer League Division 1

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Opponent	Rating	Result
Chris CW Shephard	2169	½ - ½
Chris N Ross	2228	½ - ½
Oskar A Hackner	2375	0 - 1
Daniel JS Sullivan	2008	1 - 0
Oliver Graham	1904	½ - ½
Carl Walker	2016	1 - 0
Jonathan A Tait	2197	½ - ½

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

2185 = (14897 + 400 * (2 - 1)) / 7)