Event: Yorkshire u18s Team Championship - Division 2

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Opponent	Rating	Result
Pranay Sharma	1041	0 - 1
Matthew Chan	1119	0 - 1
Patryk Poterlowicz	0	0 - 1
Oliver George	0	1 - 0
Jack Holmes	872	0 - 1
Muhammad Aamir	1110	1 - 0
Daniel Geng	1147	0 - 1
Shaoyuan Shan	1102	0 - 1

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

599 = (6391 + 400 * (2 - 6)) / 8)