Event: Division 1

Opponent Rating Result
Peter Newton 1812 1 - 0
Norman A Hutchinson 1939 0 - 1
Konrad Scheffler 1954 ½ - ½
Christopher Hampton 1895 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2000 = (7600 + 400 * (2 - 1)) / 4)

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