Event: Division 1

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Opponent	Rating	Result
Michael H Barnes	2176	½ - ½
John Molyneux	2102	½ - ½
John Molyneux	2113	0 - 1
Michael A Naylor-Eade	1966	1 - 0
Michael A Naylor-Eade	1960	1 - 0
Graham I Ladds	1939	1 - 0
Tim D Walker	2113	½ - ½

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

2167 = (14369 + 400 * (3 - 1)) / 7)