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Home / Equine Research Bank / J Equine Sci / The effect of age on thoroughbred racing performance.
Journal of equine science2011; 21(4); 73-78; doi: 10.1294/jes.21.73

The effect of age on thoroughbred racing performance.

Abstract: Using a dataset of 274 male Thoroughbred racehorses in the United States, we study the effect of age on racing performance. Beyer speed figures, which are uniform measures of racing performance across distance and racing surface, are utilized in this study. A system of equations is estimated to determine quadratic improvement and decline in racing performance. We find that a typical horse's peak racing age is 4.45 years. The rate of improvement from age 2 to 4 1/2 is greater than the rate of decline after age 4 1/2. A typical horse will improve by 10 (horse) lengths in sprints (less than 1 mile) and 15 lengths in routes (one mile or greater) from age 2 to 4 1/2. Over the next five years the typical decline is 6 lengths for sprints and 9 1/2 lengths for routes.
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Publication Date: 2011-01-29 PubMed ID: 24833980PubMed Central: PMC4013968DOI: 10.1294/jes.21.73Google Scholar: Lookup
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  • Journal Article

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

The research paper discusses the impact of age on the performance of racehorses, finding that horses typically peak in performance at around 4.45 years. It presents that the rate of improvement before this age is more noticeable than the subsequent performance decline.

Study Methodology

  • The research was conducted with a dataset encompassing 274 male Thoroughbred racehorses from the United States.
  • The team used Beyer speed figures as a central metric of racing performance, choosing it for its uniformity across various factors such as race distance and racing surface.

Results and Key Findings

  • The team found that the general peak racing age for a thoroughbred racehorse is about 4.45 years.
  • The study revealed that the rate of improvement in terms of speed and performance between the age of 2 to 4.5 years is more significant than the rate of performance decline post the age of 4.5 years.
  • In more specific terms, a typical racehorse will showcase an improvement by approximately 10 (horse) lengths in sprint races (distances less than 1 mile) and by around 15 lengths in route races (distances of one mile or greater) as it grows from 2 to 4.5 years of age.

Post-Peak Performance

  • Upon reaching the peak age of 4.5 years, the decline in performance, although present, is less steep than the previous rate of improvement.
  • Over the next five years following the peak age, the average decline in performance is about 6 lengths for sprint races and roughly 9.5 lengths for route races.

Implications of the Study

  • This research provides valuable insights into the development and management of racehorses, thereby essentially enabling owners, trainers, and betters to make informed decisions about racing strategies and career longevity of their horses.

Cite This Article

APA
Gramm M, Marksteiner R. (2011). The effect of age on thoroughbred racing performance. J Equine Sci, 21(4), 73-78. https://doi.org/10.1294/jes.21.73

Publication

Journal of equine science
ISSN: 1340-3516
NlmUniqueID: 9503751
Country: Japan
Language: English
Volume: 21
Issue: 4
Pages: 73-78

Researcher Affiliations

Gramm, Marshall
  • Department of Economics and Business, Rhodes College, 2000 N. Parkway, Memphis, TN 38112-1690.
Marksteiner, Ryne
  • Department of Economics, University of Wisconsin, William H. Sewell Social Science Building, 1180 Observatory Drive, Madison, WI 53706-1393, USA.

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Citations

This article has been cited 13 times.
  1. Camp M, Kibler ML, Ivey JLZ, Thompson JM. Factors Affecting Thoroughbred Online Auction Prices in Non/Post-Racing Careers. Animals (Basel) 2023 Apr 13;13(8).
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