Event: Lytham Summer Tournament

Opponent Rating Result
Colin Wilks 113 1 - 0
John G Cooper 170 ½ - ½
Darren Pickering 0 ½ - ½
Patrick N Coleman 104 1 - 0
David E Aspinall 140 1 - 0
Rob Gallagher 158 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

248 = (685 + 400 * (3 - 1)) / 6)

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