Event: Division 4

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Opponent	Rating	Result
George Mitchell	1498	½ - ½
Penny A Wood	1428	½ - ½
David Collinson	1328	0 - 1
Charlie Corden	1279	0 - 1
Brijmohan Chabra	1200	1 - 0
Matthew Fox	1508	0 - 1
Nick Wicks	1235	0 - 1
Brijmohan Chabra	1300	0 - 1
Seb W Dodds	1000	0 - 1

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

1086 = (11776 + 400 * (1 - 6)) / 9)