Event: South Bristol Junior Championship

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Opponent	Rating	Result
Alexis Kristoff Malibiran	1304	0 - 1
David Kowalski	1283	0 - 1
Owen James	0	1 - 0
Sophia Wherrett	0	0 - 1
Sam McCarron	0	1 - 0
Naomi Gorshunova	0	0 - 1
Thoshith Mabbu	0	0 - 1

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

198 = (2587 + 400 * (2 - 5)) / 7)