It depends on the level. For Novice: Rides available to Novice Horse/Rider combinations are from 30-50km and are to be completed at between 8-15kph. All the rules are on the endurance GB site. go to http://www.endurancegb.co.uk/index.asp Rides\Rules for the speed, Tips/Articles\Useful resources for a speed/distance ready reckoner. Hope this helps - have fun.