Event: Division 2

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Opponent Rating Result
Michael Deasey 1644 0 - 1
Peter Logan 1525 0 - 1
Ronnie Sutton 1047 1 - 0
Peter Hurn 1561 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1244 = (5777 + 400 * (1 - 3)) / 4)

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