Event: DHCC 'Stars Barred' Internal Club Rapidplay

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Opponent	Rating	Result
Andrew Nettleship	1468	1 - 0
Josh Stubbs	1512	0 - 1
Alex Porritt	1357	0 - 1
John M Oughton	1372	0 - 1
James Alex Brown	1342	1 - 0
Ian Barker	1445	0 - 1
Geoffrey D Brown	1660	0 - 1
Ethan Fenton	1237	0 - 1
Barry Williams	1474	0 - 1

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

1207 = (12867 + 400 * (2 - 7)) / 9)