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Largest equestrian event - World Championship

Largest equestrian event - World Championship
Who
UAE Equestrian and Racing Federation
When
10 December 1998
The largest number of participants in an official equestrian World Championship event is 162 from 37 countries for  the FEI World Endurance Championships held at Ghantoot Race Club between Abu Dhabi and Dubai, United Arab Emirates on 10 Dec 1998.