Event: Division 2

Opponent Rating Result
James D Steele 1836 1 - 0
Keith S Jones 1740 ½ - ½
John A Figgins 1651 1 - 0
Rasike Attanayake 0 1 - 0
Ian P F Smith 1500 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1505 = (6727 + 400 * (3 - 1)) / 5)

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