Event: 4-Board Division 1

Opponent Rating Result
David Atkin 1326 0 - 1
Hussam Al Haidar 1517 ½ - ½
Sean Smith 1528 ½ - ½
Stuart Sharp 1405 ½ - ½
Mark S Bettley 1581 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1391 = (7357 + 400 * (0 - 1)) / 5)

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