Event: D&DCL Div 1

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Opponent	Rating	Result
Alan F Downham	1910	1 - 0
Peter JE Ackley	2107	½ - ½
Martin Pettinger	1819	0 - 1
John Molyneux	2114	1 - 0
Alan F Downham	1910	1 - 0
Daniel Blumenow	1756	1 - 0
Peter JE Ackley	2107	½ - ½
Ranjit Nath	1826	1 - 0
Paul Madden	2106	1 - 0
Benjamin I Nevett-Farman	1950	½ - ½

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

2161 = (19605 + 400 * (6 - 1)) / 10)