Event: Division 3 - Under 6400

Opponent Rating Result
Piotr Ruszelak 1784 ½ - ½
Clive Liggatt 1374 1 - 0
Trefor F Thynne 1896 ½ - ½
Joshua P Blackmore 1865 ½ - ½
James Day 1697 ½ - ½
Oliver Quartley 1650 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1844 = (10266 + 400 * (2 - 0)) / 6)

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