Dosage: Pedigree & Performance
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Speed Figures:
A Comparison of Performance Figures, Beyer Figures,
Timeform Ratings, Racing Post Ratings, BRIS Ratings and Equibase Ratings

The Table below shows the approximate comparative numerical values for Performance Figures (PF), Beyer Speed Figures (BSF), Timeform Ratings (TR), Racing Post Ratings (RPR), BRIS Ratings (BRIS) and Equibase Speed Figures (EB) where the numbers apply to races for older males in open company.  The comparisons are based on newly-completed studies in 2014.  The BSF/TR comparison is based on a previously 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 -77.  Using the Table, this figure is equivalent to a BSF of about 105, a TR of about 120, a RPR of about 117, a BRIS Rating of about 107 and an EB of about 116.  The correlation coefficents which measure the closeness of the fit between PFs and the other figures are displayed as well.  The nearer a correlation coefficient is to 1.00, the closer the fit between the two sets of figures.

CLASS PF BSF TR RPR BRIS EB
50 59 74 76 72 71
40 63 78 79 75 75
30 66 81 82 78 78
20 70 85 85 81 82
10 74 89 89 83 86
0 77 92 92 86 89
$10K -10 81 96 95 89 93
-20 85 100 99 92 96
-30 88 103 102 94 100
-40 92 107 105 97 103
-50 96 111 108 100 107
CAN-3 -53 97 112 109 101 108
CAN-2 -56 98 113 110 101 109
CAN-1 -60 99 114 112 103 110
G3 -62 100 115 112 103 111
G2 -66 101 116 114 104 112
-70 103 118 115 105 114
G1 -77 105 120 117 107 116
-80 107 122 118 108 117
-90 110 125 121 111 121
-100 114 129 125 113 125
-110 118 133 128 116 128
-120 121 136 131 119 132
     -130       125       140       134       122       135
CORR. COEFF. = 0.88 0.79 0.87 0.85