Event: B Division

Opponent Rating Result
Mike J Surtees 2150 ½ - ½
R Mark Hann 2035 ½ - ½
Simeon Sakic 1932 ½ - ½
Neville Barnes 1871 1 - 0
Dave Toole 1901 ½ - ½
Simon Wright 1766 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2009 = (11655 + 400 * (1 - 0)) / 6)

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