Kwallon kafa galibi yana nufin ƙwallon ƙafa ta Ingila, wacce a hukumance ake kira ƙungiyar ƙwallon ƙafa (ƙwallon ƙafa a takaice), wacce shahararriyar wasan ƙwallon ƙungiya ce a duniya. Ɗaya, wanda aka sani da "Wasan Duniya". A wasan ƙwallon ƙafa na yau da kullun, ƙungiyoyi biyu kowannensu yana aika 'yan wasa 10 da 'yan wasa 11, gami da mai tsaron gida, don fuskantar juna su kai hari a filin wasa mai siffar murabba'i. 'Yan wasa za su iya taɓa ƙwallon da kowane ɓangare na jikinsu banda hannuwansu (sai dai jefa kwallo), ban da mai tsaron gida wanda zai iya taɓa ƙwallon da hannuwansu a cikin yankin bugun fenariti nasu. Manufar wasan ita ce harba ƙwallon zuwa ƙwallon da abokin hamayyarsa ya ci. Ana zura maki kuma ƙungiyar da ta fi maki ta yi nasara. Wasan ya ɗauki jimillar mintuna 90, kuma yana da rabin mintuna 45 daidai gwargwado. Idan aka yi kunnen doki a cikin lokacin da aka ƙayyade, ƙa'idodin wasan za su yi aiki. Shawarar ta hanyar caca, ƙarin lokaci (ƙarin mintuna 30), hukuncin juna. A yanayin gasar, canja wuri zai haifar da canja wuri.