Event: Open Rapid-play

Opponent Rating Result
Daniel M Lambourne 2110 0 - 1
Kacper Sikorski 1794 1 - 0
Tony Preece 1868 0 - 1
Daniel M Lambourne 2110 0 - 1
Kacper Sikorski 1794 1 - 0
Tony Preece 1868 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1791 = (11544 + 400 * (2 - 4)) / 6)

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