Event: League Division 1

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Opponent	Rating	Result
Brian H Coop	1904	0 - 1
David Shapland	2015	0 - 1
Paul Pritchard	1863	1 - 0
Keith J Riach	1690	0 - 1
David Shapland	2015	0 - 1
Rob Lockwood	1615	0 - 1
Frank T Sheldrick	1715	0 - 1
Clive W Davies	1875	0 - 1
Rob Lockwood	1615	½ - ½

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

1545 = (16307 + 400 * (1 - 7)) / 9)