Event: Hepolite (Rapidplay)

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Opponent	Rating	Result
Keith Marsh	1608	0 - 1
Keith Marsh	1608	0 - 1
Dennis Palframan	1450	1 - 0
Dennis Palframan	1450	1 - 0
Lee Crawford	1884	0 - 1
Lee Crawford	1884	0 - 1
Robert Dennington	1648	0 - 1
Robert Dennington	1648	0 - 1
Les Johnson	1626	0 - 1
Les Johnson	1626	½ - ½

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

1443 = (16432 + 400 * (2 - 7)) / 10)