Event: Division 3

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Opponent	Rating	Result
Bill Kimberley	1793	1 - 0
Peter Nixon	1466	1 - 0
Peter J Leary	1758	0 - 1

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

1806 = (5017 + 400 * (2 - 1)) / 3)