Event: Division Two

Opponent Rating Result
D Ian Calvert 1966 ½ - ½
Nick W Faulks 1930 0 - 1
Christof Brixel 155 ½ - ½
Jonathan Rubeck 1899 0 - 1
Tony D Wells 2014 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1513 = (7964 + 400 * (1 - 2)) / 5)

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