Event: Durham League Division B

Opponent Rating Result
Barry Edgar 1575 ½ - ½
Zachary Barton 1843 0 - 1
Richard J Harris 1726 1 - 0
Michael Siddle 1538 0 - 1
Owen Temple 1333 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1443 = (8015 + 400 * (1 - 3)) / 5)

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