Event: Club Championship Div 2

Opponent Rating Result
George P Jelliss 1319 1 - 0
Steve Ballantyne 0 ½ - ½
James Marshall 1511 0 - 1
Andrew Crosby 1435 0 - 1
George Bulbeck 1575 0 - 1
Kobus Nienaber 1452 1 - 0
Michael Keenan 1334 1 - 0
Julian M Bulbeck 1456 0 - 1
Douglas J Barnett 1532 0 - 1
Pawel Stanny 1433 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1225 = (13047 + 400 * (3 - 5)) / 10)

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