Event: Lewisham Club Championship

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Opponent	Rating	Result
Rod Wigbout	1935	1 - 0
Mark M Robertson	2082	1 - 0
Mike Roberts	2080	0 - 1

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

2166 = (6097 + 400 * (2 - 1)) / 3)