Event: D&DCL Div 1

Opponent Rating Result
Andrew Stevens 1930 1 - 0
Ralph MA Allen 1758 0 - 1
Ranjit Nath 1900 1 - 0
Paul Madden 2088 0 - 1
David Smith 1810 1 - 0
David Smith 1810 0 - 1
Ralph MA Allen 1758 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1808 = (13054 + 400 * (3 - 4)) / 7)

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