Event: Division 2

Opponent Rating Result
Ronnie Sutton 1023 0 - 1
George Fishwick 1507 0 - 1
John Moxham 1507 0 - 1
Mohammed Rohman 1561 0 - 1
Peter Logan 1533 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1026 = (7131 + 400 * (0 - 5)) / 5)

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