Ullakathon wani nau'in gasa ne da ke da nisan mil fiye da 42,195 ko daidai da nisan marathon.
Daya daga cikin mafi dadewa ultrantrathons a duniya shine wucewar kai na tseren mil 3,100 da aka gudanar a New York tare da nisan kilomita na 4.989.
Ultimatathon ana ci sau da yawa a wuraren da ke ba da kyawawan shimfidar wuri na halitta, kamar duwatsun ko hamada.
Wasu mahalarta ultalathon suna amfani da dabarun gudanarwa na gudana a kan abokan aikinsu da ake kira tseren ruwa.
Ultimatherathon sau da yawa yana buƙatar lokaci mai tsawo fiye da Marathon, yana iya ma ya kai kwanaki da yawa.
Wasu mahalarta na ublatathon suna ɗaukar jaka waɗanda ke ɗauke da kayan aikin bacci da abinci don amfani yayin tsere.
Wasu nau'ikan ultammathon sun haɗa da cikas ko kalubale kamar hawa dutsen ko tsallaka hamada.
Wasu mahalarta kusancin ultammathon kansu don shiga matakin keb ɗin, wanda ya ba su damar ƙona kitse a matsayin tushen makamashi yayin tseren.
Akwai nau'ikan ultammathon da yawa waɗanda ke buƙatar mahalarta masu nauyi a lokacin tsere, kamar ainihin marathon na dutse a Ingila.
Wasu mahalarta taron ublatathon sun kafa bayanan duniyar wata duniyar duniya, kamar su Dean Karnazes wanda ya yi nasarar kammala marathons 50 a cikin jere 50 a jere.
