Event: Derby & District Division 2

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Opponent	Rating	Result
David Williams	1841	0 - 1
Bowie Carter	1858	0 - 1
Alex Abdullahi	1576	0 - 1

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

1358 = (5275 + 400 * (0 - 3)) / 3)