Event: Region 1 Newcastle and Northumberland

Opponent Rating Result
Daniel Francis 1623 0 - 1
Michael Pearson 0 1 - 0
Ethan Ross 1270 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

831 = (2893 + 400 * (1 - 2)) / 3)

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