Event: Division 4

Opponent Rating Result
Alan R Griffiths 1905 0 - 1
Sammy Benzaira 1954 0 - 1
Andy While 1500 ½ - ½
Kevin Argyle 1458 0 - 1
Charles Baylis 1400 0 - 1
Andy Lowe 1450 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1411 = (9667 + 400 * (1 - 4)) / 6)

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