Event: Summer Rapidplay

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Opponent Rating Result
Tristan Green 1381 0 - 1
Tashil Lankapura 950 1 - 0
Janos Mehes 1549 1 - 0
Michael J Creaney 1649 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1382 = (5529 + 400 * (2 - 2)) / 4)

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