Event: 4-Board Division 1

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Opponent	Rating	Result
Stephen Brown	1522	1 - 0
Tim M Turner	1884	1 - 0
John Scotter	1558	0 - 1
Tom Tallentire	1550	1 - 0
Phil Shaw	1470	0 - 1
Alec Grice	1674	0 - 1
N Charles Clayton	1501	1 - 0
Ian Scott	1560	1 - 0

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

1690 = (12719 + 400 * (5 - 3)) / 8)