Event: Season 2022/23 Championship

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Opponent	Rating	Result
Andrew Parker	975	1 - 0
Paul RH Clarke	1750	1 - 0
Clive W Davies	1880	0 - 1

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

1668 = (4605 + 400 * (2 - 1)) / 3)