Unit bụ ntụle pụrụ iche nke onye, nke kachiaku 1–2% nke bankroll. Ndị na-ebutụ ụmụ ezie na ndị na-edekọ ihe na-akọ uru na units ('+14.2u') n'ihi na ọ na-ekewapụ nkubido mma site na ego: +14 units pụtara otu ihe ma unit bụ £2 ma ọ bụ £200.
Units na-ekpughe nrụọ n'otu ntụle. Akwụkwọ ihe edekọ na-ekwu 'iri-unit locks' na '0.5-unit longshots' na-agwa gị na obi dị iche iche n'etụle ụtụtụ — nke kwụ kwụ na oge gara aga na-ejikọ ya na akwụkwọ ihe edekọ na-akwụ na agwaghị ya.
Bankroll £1,000, unit 1% = £10. Ọgụ na-agwụ na +18.4u wetara £184n'otu ntụle nkwado. Akwụkwọ ihe edekọ nke anyị na-ebupụ ọrụ na otu-unit ntụle tupu ihe niile — nọmba ahụ apụtaghị ịtụ anya n'ihi mgbanwe ntụle ka ịna-aga nke ọma.