Event: Rapidplay All-play-all

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Opponent Rating Result
Wieslaw Stanicki 74 0 - 1
Mark J Leonard 159 1 - 0
Sasha Kamotskiy 129 1 - 0
Tim F Woodward 144 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

127 = (506 + 400 * (2 - 2)) / 4)

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