Cycle sport
Average speeds

Speeds achieved on indoor tracks are usually greater than those on roads. Other factors affecting speed are the route profile (flats and hills), wind conditions, temperatures and elevation. At a 2013 event in Mexico, François Pervis achieved an average of 21.40 metres per second (77.0 km/h; 47.9 mph) with a flying start over 200 m (660 ft). The top average speed over the men's 1 km (0.6 mi) time trial at the 2004 Summer Olympics was 16.4 metres per second (59 km/h; 37 mph) recorded by Chris Hoy. Average speeds clearly drop with increasing distance, so that over the 120 km (70 mi) Cootamundra Annual Classic it is 11.8 metres per second (42 km/h; 26 mph). In the 259 km (200 mi) 2010 Paris–Roubaix, Fabian Cancellara set a speed of 10.9 metres per second (39 km/h; 24 mph), while over the 818 km (500 mi) Furnace Creek 508, the speed drops dramatically to 8.3 metres per second (30 km/h; 19 mph). For an extreme road distance such as the 4,800 km (3,000 mi) Race Across America, the average speed of the record holder is 5.7 metres per second (21 km/h; 13 mph), while the 2,350 km (1,000 mi) Freedom Trail over mountainous terrain in South Africa is at a record speed of 1.9 metres per second (6.8 km/h; 4.3 mph).
length_constraints:number_paragraphs[2]