Event: LCA Division 2

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Opponent	Rating	Result
Joanne Hutchinson	1748	0 - 1
Andrew T Watson	1484	½ - ½
Iulia Poama-Covaci	1607	0 - 1
Andrew T Watson	1484	0 - 1
Grenville Wollerton	1723	0 - 1
Jules Brown	1752	0 - 1
Dave Bull	1680	0 - 1

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

1297 = (11478 + 400 * (0 - 6)) / 7)