Event: Hull CC Championship 2022-23

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Opponent	Rating	Result
Maksym Larchikov	1756	½ - ½
Andrei Ciuravin	2181	½ - ½
Mark I Collinson	1965	0 - 1
Shaun J Culkin	1992	½ - ½
John G Cooper	2247	1 - 0
John W Atkinson	1971	1 - 0
Keith Thompson	1916	½ - ½

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

2061 = (14028 + 400 * (2 - 1)) / 7)