Event: Harrogate Evening League 2024-25

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Opponent	Rating	Result
Andrew Zigmond	1605	1 - 0
Arron Barker	1969	0 - 1
David W Adam	1760	0 - 1

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

1645 = (5334 + 400 * (1 - 2)) / 3)