title: Racing speeds of quarter horses, thoroughbreds and Arabians.
abstract: BACKGROUND
  While Quarter Horses are recognised as the fastest breed of horse, direct comparisons to race times with other breeds can be misleading. Quarter Horse races begin when the starting gates open. Thoroughbred and Arabian races begin a short distance from the gates after horses have started running. This study compared speeds of these breeds as they accelerate from the starting gates and during the middle and end of races.
  
  
  OBJECTIVE
  To compare racing speeds of the 3 breeds, and to compare speeds during various segments of the races.
  
  
  METHODS
  Video tapes of races were obtained from a local track. The various race segments were viewed and the winning horse timed by 5 individuals. Fastest and slowest times were removed and the 3 remaining times averaged.
  
  
  RESULTS
  Quarter Horses averaged faster speeds than Thoroughbreds even when Thoroughbreds were raced at a distance (402 m) similar to Quarter Horse races. Both breeds were substantially faster than Arabians. Quarter Horses racing 336 m or less gained speed in each segment of the race while Arabians and Thoroughbreds racing 1006 m ran fastest during the middle of the race and had decreased their speed in the final segment of the race.
  
  
  CONCLUSIONS
  Despite similar race times reported for 402 m, Quarter Horses averaged faster speeds than Thoroughbreds when timed from a standing start. In short races, both breeds accelerate throughout the race. Arabians, despite being known for endurance, had slowed by the end of the race.
  
  
  CONCLUSIONS
  This study demonstrates that Quarter Horses achieve faster racing speeds than do other breeds. It also reveals a potential flaw in race-riding strategy as a more consistent pace throughout the Arabian and longer Thoroughbred races may be more efficient and result in a faster overall race time.
authors.affiliation: Michigan State University, 1287Anthony Hall, East Lansing, Michigan 48824, USA.
authors.forename: B D
authors.initials: BD
authors.lastname: Nielsen
authors.forename: K K
authors.initials: KK
authors.lastname: Turner
authors.forename: B A
authors.initials: BA
authors.lastname: Ventura
authors.forename: A D
authors.initials: AD
authors.lastname: Woodward
authors.forename: C I
authors.initials: CI
authors.lastname: O'Connor
mesh_terms: D000818:Animals; D001947:Breeding; D006736:Horses / Q000235:genetics* / Q000502:physiology*; D010805:Physical Conditioning, Animal / Q000502:physiology*; D012420:Running / Q000502:physiology*; D013177:Sports; D013997:Time Factors; D014741:Video Recording