Event: Division 4

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Opponent	Rating	Result
Paul Mottram	1593	½ - ½
Cyril D Hill	1585	0 - 1
Matthew J Connor	1630	0 - 1
Benjamin Noyvert	1584	1 - 0
Jon Redding	1750	½ - ½
Michael W Salisbury	1863	½ - ½
Oliver Penney	1675	0 - 1
Quentin Jacquemard	1548	½ - ½
James N Miller	1780	½ - ½
Peter J Hickman	1578	0 - 1

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

1539 = (16586 + 400 * (1 - 4)) / 10)