Event: Division 3 - Under 6400

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Opponent	Rating	Result
Robert G Wilby	1663	0 - 1
Alin Ionescu	1638	0 - 1
Piran Wills	1624	0 - 1
Ellis Manning	1649	0 - 1
Clive Liggatt	1374	0 - 1
Richard Brenton	1574	0 - 1
Finn Sellar	1400	½ - ½
Tony Lopez	1377	1 - 0

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

1287 = (12299 + 400 * (1 - 6)) / 8)