Event: Northamptonshire Silver King League Division 2

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Opponent	Rating	Result
Andy Neville	1413	1 - 0
Georgi Hristov	1627	0 - 1
Liam Davison-Rix	1200	1 - 0

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

1547 = (4240 + 400 * (2 - 1)) / 3)