Event: The Chess Centre - Guiseley (Class 2) Junior League

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Opponent	Rating	Result
Acer Biscoe-Cilenti	453	0 - 1
Freddie Nummela-Price	792	0 - 1
Acer Biscoe-Cilenti	468	0 - 1
Freddie Nummela-Price	802	½ - ½
Arvin Jochum-Critchley	713	0 - 1
Arvin Jochum-Critchley	713	½ - ½

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

390 = (3941 + 400 * (0 - 4)) / 6)