Event: Yorkshire u18s Team Championship - Division 2

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Opponent	Rating	Result
Louis Needham	1194	0 - 1
Luigi Ucci	1062	0 - 1
Dylan Hirst	1168	0 - 1
William Peacock	1087	0 - 1

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

728 = (4511 + 400 * (0 - 4)) / 4)