Event: Harrogate Evening League 2022 season

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Opponent	Rating	Result
Pete Redmond	1912	0 - 1
Andrew Zigmond	1655	0 - 1
John Tate	1499	0 - 1
David Harasym	1811	1 - 0
David Wells	1860	½ - ½

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

1587 = (8737 + 400 * (1 - 3)) / 5)