Event: Division 1

Opponent Rating Result
Richard Myers 1653 ½ - ½
R (Bob) Abrahart 1610 0 - 1
John R Huthwaite 1737 1 - 0
Janos J Wagenbach 1747 0 - 1
Richard Myers 1681 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1606 = (8428 + 400 * (1 - 2)) / 5)

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