Speed Figures: The Table below shows the approximate comparative numerical values for Performance Figures (PFs), Beyer Speed Figures (BSFs), Timeform Ratings (TRs), Racing Post Ratings (RPRs), BRIS Ratings (BRISs) and Equibase Speed Figures (ESFs). The PF/BSF comparison is based on our earlier studies. The PF/RPR, PF/BRIS and PF/ESF comparisons are based on our own unpublished results. The BSF/TR comparison is based on a published approximation in which a TR is about 15 points higher than the corresponding BSF. By way of illustration, a typical Grade 1 winner will have a PF of -84. Using the Table, this figure is equivalent to a BSF of about 113, a TR of about 128, a RPR of about 129, a BRIS Rating of about 111 and an ESF of 123.
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