Event: Holmes Chapel Chess Club Individual Championship

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Opponent	Rating	Result
Patrick Bennett	1967	½ - ½
Nigel Scott	1555	1 - 0(def)
Michael A Lee	1659	1 - 0
Paul G Clifford	1435	0 - 1

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

1687 = (5061 + 400 * (1 - 1)) / 3)