A rating of speed for racehorses, devised by Andrew Beyer in 1986, that takes into account both the horse's running time and the track. The Daily Racing Form began to publish Beyer figures in 1992; it is calculated for each race for each horse.
The figures for the very best horses are typically in the 110's; since 1986 only one horse has surpassed 130. Horses in low stakes claiming races may have scores in the 50's. Because of changes in the way the rating is calculated, it is not really meaningful to compare ratings from different eras. Andrew Beyer himself, however, estimated that Secretariat's victory in the Belmont Stakes on June 9, 1973, would have been scored at 139, “probably the best race ever run.”
For a discussion of the use of this measure in handicapping, visit
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Last revised: 9 February 2015.