Event: Leeds Junior Chess Club Autumn Term Internal League Games

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Opponent	Rating	Result
Andrew Teh	0	0 - 1
Edward Nolan	0	½ - ½
Andrew Teh	0	1 - 0
Amandeep Singh	0	0 - 1
Aditya Italiya	0	1 - 0

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

0 = (0 + 400 * (2 - 2)) / 5)