Event: Durham League Division B

Opponent Rating Result
Nigel Hall 1947 1 - 0
Stephen J Hall 1813 1 - 0
Chris Clynes 1559 1 - 0
Peter Harker 1672 1 - 0
Steve H Jefferies 1604 1 - 0
Alexander Belay 0 1 - 0
William Hallidie Smith 0 1 - 0
Stephen Carter 1572 1 - 0
Vaughan Davison 1585 ½ - ½
Stephen Rodgers 1645 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1700 = (13397 + 400 * (9 - 0)) / 10)

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