Pace and Cap - Sartin Methodology & The Match Up - View Single Post

Ted Craven · 07-18-2007, 03:46 PM

Froggy,

The TrackMaster Speed Rating is a final time number which includes:

1) the Daily Track Variant (how fast/slow that day's surface was),
2) the Inter Track variant (how fast or slow each surface is relative to a universal norm).
3) the horse's speed rating (compared to the 'par' for that track/distance/surface).

The sum of the 3 is the TrackMaster Speed rating, which is published in track programs at most race tracks across the US and Canada. The DTV component is shown separately. The ITV is not shown (state secret). Sartin software uses the published DTV and the unpublished ITV to adjust raw running times so that they are comparable to each other and (supposedly) can be rated against each other (buyer beware: often reliable, except when they're not).

The TM SR is distinct from the software's Speed Rating (under the SR column - see below), which is calculated by the programs from equalized, normalized, adjusted Final Times.

Uses: The TM SR can be a corollary to computed SR (which one is best of last 3 comparable, be careful about using the best ever, etc, etc). The DTV: how fast or slow was the track: perhaps very slow or very fast, then beware if the times get adjusted out of whack. RDSS has a feature (use of which coming soon) to limit the DTV to a low or high value (e.g. +- 15) to smooth out the extremes.

You can also just ignore the TM SR, but I put it in to serve as a tie-together of how everything relates to everything. In Validator and Speculator, the TM SR shown is the Net SR, i.e. original TM SR minus DTV. Erring on the side of completeness, I show it all.

BTW, the TrackMaster Class Rating (CR) for each race, now found on the Adjusted screen, is TM's numerical estimate of the relative class of each race, based on best projected final time Speed Ratings for the entrants. Again, caveat emptor.

Please refer to the markups on the screenshot below to see how various screens relate to each other, what is located where across different software and how it ties to the TrackMaster/Equibase PDF Past Performance listing.

Perhaps others can chime in on what uses they make of the TM Speed Rating, or how they react to various swings of Daily Track Variant.

Ted

07-18-2007, 03:46 PM	#2
Ted Craven Grade 1 Join Date: Jun 2005 Location: Nanaimo, British Columbia, Canada Posts: 9,251	Froggy, The TrackMaster Speed Rating is a final time number which includes: 1) the Daily Track Variant (how fast/slow that day's surface was), 2) the Inter Track variant (how fast or slow each surface is relative to a universal norm). 3) the horse's speed rating (compared to the 'par' for that track/distance/surface). The sum of the 3 is the TrackMaster Speed rating, which is published in track programs at most race tracks across the US and Canada. The DTV component is shown separately. The ITV is not shown (state secret). Sartin software uses the published DTV and the unpublished ITV to adjust raw running times so that they are comparable to each other and (supposedly) can be rated against each other (buyer beware: often reliable, except when they're not). The TM SR is distinct from the software's Speed Rating (under the SR column - see below), which is calculated by the programs from equalized, normalized, adjusted Final Times. Uses: The TM SR can be a corollary to computed SR (which one is best of last 3 comparable, be careful about using the best ever, etc, etc). The DTV: how fast or slow was the track: perhaps very slow or very fast, then beware if the times get adjusted out of whack. RDSS has a feature (use of which coming soon) to limit the DTV to a low or high value (e.g. +- 15) to smooth out the extremes. You can also just ignore the TM SR, but I put it in to serve as a tie-together of how everything relates to everything. In Validator and Speculator, the TM SR shown is the Net SR, i.e. original TM SR minus DTV. Erring on the side of completeness, I show it all. BTW, the TrackMaster Class Rating (CR) for each race, now found on the Adjusted screen, is TM's numerical estimate of the relative class of each race, based on best projected final time Speed Ratings for the entrants. Again, caveat emptor. Please refer to the markups on the screenshot below to see how various screens relate to each other, what is located where across different software and how it ties to the TrackMaster/Equibase PDF Past Performance listing. Perhaps others can chime in on what uses they make of the TM Speed Rating, or how they react to various swings of Daily Track Variant. Ted Attached Images Last edited by Ted Craven; 07-18-2007 at 04:03 PM.