Event: Division Four

Opponent Rating Result
John Grant 1641 0 - 1
Peter JR Oliver 1589 1 - 0
Nicolas Fernandez Santos 1823 0 - 1
Ron Neale 1653 0 - 1
David Smith 1872 0 - 1
Derek A Stockhall 1554 0 - 1
Lee E Collier 1768 ½ - ½
Paul B Sharratt 1729 0 - 1
Kacpar Drukarczyk 1635 0 - 1
Anthony McCool 1625 0 - 1
Frank C Jimenez 1587 ½ - ½
Bob Hackett 1409 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1457 = (19885 + 400 * (2 - 8)) / 12)

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