Event: Major West

Opponent Rating Result
Colum Jezierski 1968 0 - 1
Matthew J Hortin 1930 0 - 1
Agata Becker 0 1 - 0
Thomas O'Brien 1400 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1325 = (5298 + 400 * (2 - 2)) / 4)

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