stayer
From Longman Dictionary of Contemporary EnglishRelated topics: Horses, Sportstayerstay‧er /ˈsteɪə $ -ər/ noun [countable] British EnglishDSHDSSTRONG PERSON a horse or person that is able to continue to the end of a long race, job etcExamples from the Corpusstayer• Top class stayer, especially effective over the more stamina-testing trips.• But Cool Ground is a dour stayer with a wealth of experience, who should adapt to Aintree.• It was also in this period that the frequent stayer programmes were introduced.• Kilmacar Dilemma-Already making a name for herself but a lot more is expected by those close to this talented stayer.