Event: Dudley & District League Div 2

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Opponent	Rating	Result
Maurice D Bissell	1762	½ - ½
Oliver Green	1638	1 - 0
Varban Varbanov	1790	½ - ½
Nnamdi Ajoku	450	0 - 1
Milenko Walner	1798	0 - 1
David Close	1684	0 - 1
Gordon G Sands	1534	0 - 1
Joe Walker	450	1 - 0

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

1288 = (11106 + 400 * (2 - 4)) / 8)