Event: Division 2

Opponent Rating Result
John Whitfield 1813 0 - 1
Mohammed Rohman 1510 0 - 1
Peter Dickinson 1529 0 - 1
Ronnie Sutton 944 0 - 1
Peter Logan 1559 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1071 = (7355 + 400 * (0 - 5)) / 5)

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