Event: Scurfield Shield 2023

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Opponent	Rating	Result
Caelan Batty	1409	0 - 1
Jacob Robinson	1042	1 - 0
Sevan Chotai	1111	0 - 1
Charlie Wainwright	1437	0 - 1
Alex Rawse	1171	0 - 1
Dan Yoshino-Bunting	0	0 - 1
Lois Northage	0	0 - 1

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

596 = (6170 + 400 * (1 - 6)) / 7)