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አማርኛ Round robin tana yin bets ga kowane haɗi na girman da ka zaɓa a cikin zaɓininka — yawancin duk doubles daga huɗu, biyar ko shida zaɓi. Trixie da Yankee jiya ne kawai round robins masu ƙayyadadden girma; nau'in gaba jiya ya ba ka damar zaɓar girman da kika so.
Lissafi-lissafin ya tasi de-de: duk doubles daga shida zaɓi shine goma sha biyar bets, duk trebles ashirin. Haɗi kowa yana da stake nasu kuma yana da margin nasu, saboda haka tsarin ya ninka yanki na bookmaker daidai kamar yadda yake ninka-ninka jirgin motar keɓantaccen kula.
Duk doubles daga biyar zaɓi = 10 bets. A 5% margin ga kowane double, kunshin ya ɓata kusan 0.5 units na tsammanin kudi. Uku daga biyar sābis suka samun 3 doubles: a farashi 2.00 kowa ya biya 4 units — 12 bakin jiya daga 10, kafin variance ya fadi wani abu.