Event: 4th Cornwall Online Congress

Opponent Rating Result
Paul Edwards 0 0 - 1
John James 0 1 - 0
Jamie Morgan 0 0 - 1
Nigel J Kirkman 1660 0 - 1
Trevor Palmer 1691 1 - 0
Ian M George 1833 0 - 1
Hugh Brown 1309 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

813 = (6493 + 400 * (2 - 4)) / 7)

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