Event: Summer Rapidplay

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Opponent	Rating	Result
Alexander New	1989	1 - 0
Alexander New	1989	1 - 0
Stephen Livermore	1749	1 - 0
Stephen Livermore	1749	1 - 0
Brian R Jeffery	1862	1 - 0
Brian R Jeffery	1862	1 - 0
Jim McAvoy	1794	1 - 0
Jim McAvoy	1794	½ - ½
David E Hall	1920	0 - 1
David E Hall	1920	0 - 1

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

2063 = (18628 + 400 * (7 - 2)) / 10)