Event: Division 3

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Opponent	Rating	Result
Lee Walls	1658	0 - 1
Stephen Dunning	1626	0 - 1
Saul Marks	1458	½ - ½

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

1314 = (4742 + 400 * (0 - 2)) / 3)