Event: Division 2

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Opponent	Rating	Result
Clive Edwards	1797	½ - ½
Jonathan Howarth	1575	1 - 0
Ray Sutcliffe	1470	1 - 0

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

1881 = (4842 + 400 * (2 - 0)) / 3)