Event: Derby & District Division 2

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Opponent	Rating	Result
Alex Abdullahi	1585	1 - 0
Stefan Lewins	1601	1 - 0
Roger Moors	1507	1 - 0
Ray Sawyer	1727	1 - 0
Mike P Maher	1619	1 - 0

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

2008 = (8039 + 400 * (5 - 0)) / 5)