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Originally Posted by Cratos
You need not be cynical and nothing is being hidden from the bettors by the racetracks or any of the data providers.
With some reasonable assumptions, you could set a time equation to solve the time for the run-up distance for any race whether it is dirt, poly, or turf.
In any horserace you have the “coefficient of friction” which is the force resisting the horse’s motion between the track’s surface and the horse’s normal or perpendicular force.
From the starting line to the finishing line you need to use the horse’s kinetic force and from the gate to the starting line you will need to use the horse’s static force.
The historical track records for the race distances at the racetracks are based on a “running start”. The time from the gate to the starting line is a “standing start” and attempting to add them linearly is apples and oranges; they are both starts, but the force in the following time equation is very different:
Time Equation
T=sq rt of 2d/a
Where d = distance (use Trakus distance for the race distance) and (Equibase distance from the run-up distance)
a = acceleration and is different for the race distance than for the run-up distance.
However it should be noted that the horse’s distance travelled during the run-up distance is assumed to be straight up to the starting line, but this is not true because the jockeys will typically maneuver their horses toward the rail.
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Of course it is being kept from bettors. It is available and not given. Tracks do publish run up distances, but they are not very accurate in many cases. They don't publish times at all.
Sure, both can be estimated, but the actual information is always better. Call me silly I guess, but that is what I'd prefer.
