Event: Season 2022/23 Championship

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Opponent	Rating	Result
Ben Strutt	1876	0 - 1
S Neil Bolton	1336	1 - 0
Tom Devlin	1515	0 - 1
Paul RH Clarke	1718	½ - ½
Peter J Clark	1450	½ - ½
Richard Finney	1542	1 - 0
Matt Jones	1736	0 - 1

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

1539 = (11173 + 400 * (2 - 3)) / 7)