Event: Division 4

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Opponent	Rating	Result
Theo Berkhout	1066	1 - 0
Alan Brewis	1292	0 - 1
James Hurley	1268	1 - 0
Brian Kirby	1140	1 - 0
Theo Berkhout	1100	0 - 1
Alan Brewis	1320	1 - 0
James Hurley	1236	0 - 1
Brian Kirby	1119	1 - 0

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

1293 = (9541 + 400 * (5 - 3)) / 8)