Event: Holmfirth Pod Chess League

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Opponent	Rating	Result
Brendan Briggs	92	0 - 1
Nick Sykes	137	0 - 1
Leo A Keely	182	0 - 1

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

-263 = (411 + 400 * (0 - 3)) / 3)