Event: Durham League Division B

Opponent Rating Result
Nigel Hall 1947 0 - 1
Bryan J Bainbridge 1551 1 - 0
Stephen Carter 1572 ½ - ½
Stephen Carter 1572 0 - 1
Tom Berry 0 0 - 1
Deborah Edmundson 1506 0 - 1
Nathan Ekanem 1959 0 - 1
AD Tony Shires 1586 ½ - ½
Barry Edgar 1616 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1301 = (13309 + 400 * (1 - 5)) / 9)

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