Event: Summer League (Pool A)

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Opponent	Rating	Result
Jim Beaty	1867	1 - 0
Derek I Lomax	1419	1 - 0
Edward Small	1787	½ - ½
Rhys Perry	1633	1 - 0
Harry Davison	1783	0 - 1
Jim Beaty	1867	1 - 0
Derek I Lomax	1419	1 - 0
Edward Small	1787	1 - 0
Rhys Perry	1633	1 - 0
Harry Davison	1783	1 - 0

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

1978 = (16978 + 400 * (8 - 1)) / 10)