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Event: Sheffield Chess Centre Open

Opponent Rating Result
Gerald Cuaresma 1943 ½ - ½
Ionel Dragan 1964 1 - 0
Mike J Surtees 2153 0 - 1
Ewan Kershaw 1912 0 - 1
Michael Hughes 1882 1 - 0
Sammy Benzaira 2043 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1983 = (11897 + 400 * (2 - 2)) / 6)

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