Event: D Division

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Opponent	Rating	Result
Mohamed Gouda	1495	½ - ½
Anthony M Lee	1859	½ - ½
Aram Marsh	1495	1 - 0
David Stuttard	1787	½ - ½
Jack Cooper	1375	0 - 1
John Paul O'Donnell	1600	0 - 1
Karl Moorcroft	1618	½ - ½
Joel Prittie	1490	0 - 1
Ray Rushworth	1562	1 - 0
Karl Moorcroft	1618	½ - ½

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

1550 = (15899 + 400 * (2 - 3)) / 10)