From Longman Dictionary of Contemporary Englisheventinge‧vent‧ing /ɪˈventɪŋ/ (also three-day eventing) noun [uncountable] a sport in which horses do three different sorts of competition, usually over three days
Examples from the Corpus
eventing• Your horse should also be fit, as eventing is more demanding than the other activities covered.• Paula designed a motif of a horse as she is with horses all the time and regularly goes eventing.• The sport which is fast becoming a popular competitive alternative to the more traditional sports like eventing and hunter trials.• Phase B in the steeplechase and phase D, what eventing is all about, is the cross country course. 