Event: Five Counties Div 3

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Opponent	Rating	Result
Abinash Ravithas	0	0 - 1
Ritvik Sundararaju	0	0 - 1
Jeshan Jebananthan	1062	0 - 1
Leo Demyan	1195	½ - ½
Arnav Bhargava	759	1 - 0
Rory Baguley	1187	0 - 1
William Chen	1254	0 - 1

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

551 = (5457 + 400 * (1 - 5)) / 7)