Bet builder yana ninkowa zaɓe daga fiye daya cikin gida — sakamakon fiye, BTTS, katunaɗe, mai kiwo — a cikin fiye daya farashi. Saboda waɗannan rabe-rabe suna da alaƙa (gida da nasara 3–0 yana buƙatar mai kiwoyi zai kiwowa fiye) madaidaicin farashi yana buƙatar yin taba aiki, ba kawai katakaitawa baɗi.
Wannan alaƙa ita ce waje gida da karfe: kasuwa yana farashi popular correlated abubuwan sosai kaɗan, kuma margin akan builders a yau yau yana ninkowa fiye-kasuwa vig. Aiki ita ce abubuwa da gida kuma fiye kuma bada gida.
Gida zuwa nasara (2.00) + wuce 2.5 (2.00) a baɗi ninkowa zuwa 4.00, amma sakamakon waɗannan abubuwan yana buƙatar da juna sosai — fair joint farashi zai iya zama 3.20. Builder yana karɓa sayi 2.90. Kai ka biya duka alaƙa daidaita kuma kuma extra margin layer don amincin fiye daya slip.