Speed index

Speed index (sometimes Speed rating) is a system of rating the performance of Quarter Horse racehorses. The American Quarter Horse Association (or the AQHA) has used two systems over the history of Quarter Horse racing to evaluate racing performances. The original system used a letter grade, starting at D, then C, B, A and the highest AA. Later AAA was tacked on the top, and later still AAAT (for TOP AAA) was made the top speed. Eventually, this system became too cumbersome, and new system was introduced, the Speed Index system, which used a number system, with 100 being roughly equivalent to the old AAAT. This happened in 1969.Close "Legends" p. 6-7]

The actual calculation of the speed index starts with taking the three fastest wining times at a particular distance for the past three years at a given track. These times are averaged together, which is then the 100 speed index for that distance at that track. If the average doesn't meet the minimum standard time given by the AQHA for that distance, then the minimum standard time is used instead of the specific track average. To calculate a specific speed index for a specific horse in a specific race, the time the horse finished in is compared to the averaged speed for the distance the race was, and points are added or subtracted based on whether the time was faster or slower than the average. The number of points subtracted or added varies according to the distance of the race, and is based on a chart put out by the AQHA. [http://racing.aqha.com/racing/dyn_content.aspx?FQD=http://www.aqha.com/aqharacing.com/aboutus/racefaq.html AQHA Racing Frequently Asked Questions] accessed on January 19, 2008]

The AQHA's award Race Register of Merit is awarded to any horse that achieves a Speed Index of 80 or higher during an approved AQHA race.American Quarter Horse Association "Official Handbook" p. 80]

ee also

* Beyer Speed Figure

Notes

References

* American Quarter Horse Association "Official Handbook of Rules and Regulations" 56th edition Amarillo, Texas: AQHA 2008
* [http://racing.aqha.com/racing/dyn_content.aspx?FQD=http://www.aqha.com/aqharacing.com/aboutus/racefaq.html AQHA Racing Frequently Asked Questions] accessed on January 19, 2008
* Close, Pat ed. "Legends: Outstanding Quarter Horse Stallions and Mares" Colorado Springs:Western Horseman 1993 ISBN 0-911647-26-0


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • speed — index dispatch (promptness), dispatch (send off), expedite, haste, help, precipitate (hasten), promote …   Law dictionary

  • Speed cameras in Australia — Speed Cameras are used in Australia to enforce speed limits. Mobile CamerasGatso Speed CameraThis mobile camera is used in Victoria and Queensland, and can be operated in various manners. Without a flash, the only evidence of speed camera on the… …   Wikipedia

  • Speed limits in the United States — are set by each state or territory. Speed limits in the United States vary according to the type of road and land use. These speed limits do not exceed eighty miles per hour. Increments of five miles per hour are used. Additionally, these limits… …   Wikipedia

  • Speed skating — or speedskating is a competitive form of skating in which the competitors race each other in travelling a certain distance on skates. Types of speedskating are long track speedskating, short track speedskating, inline speedskating (or inline… …   Wikipedia

  • Speed sailing — is the art of sailing a craft as fast as possible over a predetermined route, and having its overall or peak speed recorded and accredited by a regulatory body. The term usually refers to sailing on water, even though sailing on land and ice is… …   Wikipedia

  • Speed Racer — Saltar a navegación, búsqueda Speed Racer Título Speed Racer, la película Ficha técnica Dirección Larry Wachowski Andy Wachowski Producción Joel Silver Guión …   Wikipedia Español

  • Speed Score — is a statistic used in Sabermetric studies to evaluate a baseball player s speed. It was invented by Bill James, and first appeared in the 1987 edition of the Bill James Baseball Abstract . [http://members.cox.net/sroneysabr/JamesIndex/Abstract198… …   Wikipedia

  • Speed to fly — is a principle used by soaring pilots when flying between sources of lift, usually thermals, ridge lift and wave. The aim is to maximize the average cross country speed by optimizing the airspeed in both rising and sinking air. The optimal… …   Wikipedia

  • Speed geeking — is a participation process used to quickly view a number of presentations within a fixed period of time. Speed geeking gets its name from speed dating, since they both employ similar techniques. Method A large room is selected as the speed… …   Wikipedia

  • index of refraction — n the ratio of the speed of radiation (as light) in one medium (as a vacuum) to that in another medium called also refractive index …   Medical dictionary


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.