Event: Sheffield Chess Centre Open

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Opponent	Rating	Result
Lindsay Pyun	1766	½ - ½
Srivathsan Sasikumar	1875	1 - 0
Prabobh Gyawali	1711	0 - 1
Gerald Cuaresma	1943	1 - 0
Jonathan P Nelson	2074	0 - 1
Gary Hinchcliffe	1781	½ - ½

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

1858 = (11150 + 400 * (2 - 2)) / 6)