Points not averages
1 Attachment(s)
Hi Mick and Ted
In the New RDSS documentation files I disagree with your explanations of the ratings we see on the PMTR/TPR Tab these are not averages ratings. You wrote . LPR – Late Pace Rating, a rating based on the average of the horse’s Second Call and Third Fraction velocities, i.e. SC + F3 / 2. The EPR ratings are a points value of the second call from a 100 point scale chart The chart rates a second call of 44 seconds for sprints and 109 for routes as 100 points. Every 1/5 of a second slower than a 44 or 109 gets a 1 point deduction from the starting point of 100 An example would be a horse run a 45 second call in a sprint on the lead This would be 5 fifths slower than a 44,so a horse that runs a 45 second call would get 95 points. The LPR is also a point value. It is based on a different 100 point scale The LPR chart is distance adjusted based on a deceleration formula. On this chart, 1 point is added or deducted based on how fast the horse ran the 3rd fraction. Lets say a horse runs a 3rd fraction in 25 seconds in a 6 furlong race a 3rd fraction of 25 equals 85 points In a 1 mile race 85 points means a 26.0 3rd fraction Those are the raw point values RDSS does all the DTV and ITV adjustments automatically a formula of 65% and 35% of the EPR and LPR are used for sprints and 60 and 40 % in routes Here is an example Lets use line 1 for Swell The horse was on the lead at the second call did not lose of gain lengths in the 3rd fraction so this is an easy one . The DTV was a fast -10 and the line comes from today's track Parx so there is no ITV 46.2 ( fifths ) on the lead = 88 points DTV-10 No ITV 65% = 92 EPR Swell ran the 3rd fraction in 25.2 seconds (fifths) on the lead no beaten lengths 71.4 - 46.2 = 25.2 On the FFR (LPR ) chart a 6 furlong 25.2 = 83 points DTV-10 No ITV 35% = 85.5 points TPR is EP points + LP points 92 Points 85.5 points ---------- 177.5 points Attachment 43327 |
You're right Bill. I brought that to Mick's attention in some feedback notes on LPR and E/L. I understand he's correcting that plus making some other additions, as we speak. I'll alert folks when a Documentation update is in place.
Thanks for the sharp eyes -- it takes a community ... ! Ted |
Thanks, Bill.
Thanks, Bill.
Correction made and revised version sent to Ted this afternoon for his review. |
Thank You
Hi Mick and Ted
I appreciate the efforts you guys put into this document. Its a real nice tool for the Sartin Methodology and RDSS Big thank you Bill |
Bill,
Thank you. I look forward to seeing you at Saratoga. |
Documentation updated. Thanks Mick!
Ted |
I thought that when a DTV was fast, the rating goes down to compensate, and when the DTV is slow, the rating goes up to compensate?
|
Not exactly the DTV from the DRF
1 Attachment(s)
Quote:
They are all we have so we just have to accept them if we use RDSS Yes If the DTV is a minus the numbers should be slowed down The track is listed as "good" Maybe Trackmaster besides a final time par and a track to track adjustment table , maybe they also make adjustments for the track condition . I think they also have some kind of race par mixed in But I may be mistaken Anyway lets look at another example and maybe we can see what is up Lets look at line 1 for this horse RDSS gives it just slightly higher readouts than I did using a calculator but RDSS/Trackmaster is much more accurate since they are using 10ths I used fifths so I had to round up and down Here is my work up for line 1 46.6 or 46.3 in 5ths = 87 113.2 or 113.1 in 5ths - 46.3 = 26.3 3rd fraction = 77 + 1 beaten length (rounded up) = 76 LPR So For Whateveryouwant since it ran on a slow 19 DTV the numbers are adjusted up Raw Adjusted EPR 87 goes to 94.5 Because 65% of 19 =12.35 but we are using 1/2 of the DTV and Track to track so 12.35/2 = 6.175 LPR 76 goes to 80.2 We only use 35% of 19 = 6.65 /2 = 3.32 87 + 6.175 = 93.2 76 + 3.32 = 79 .3 The numbers are slightly off but relatively the same The difference on RDSS is +14.5 Early and with my calculations 13.9 Early Attachment 43396 |
I'm surprised they take it to zero. We use to take it to 17 which was the average daily know variant. Really doesn't make a difference as long as their consistent in their approach.
Mitch44 |
17 18 19
2 Attachment(s)
Hi Mitch
In Pace Makes The Race a DTV of 17, 18 and 19 get no adjustment I guess Trackmaster figured the would normalize these 3 numbers as their zero, This is why the DRF system will show different numbers than RDSS BTW I ran every raw pace line into Entropy . Entropy does not use a DTV Like my example the EPR and LPR numbers are different, but the early late difference is pretty consistent, I learn this a long time ago. After many hours of trying to figure out what RDSS was doing with the Trackmaster DTV, I came to the conclusion that as long as I look at the numbers represent the concept the actual numbers are unimportant Line 1 Attachment 43400 All ten lines Attachment 43401 |
All times are GMT -4. The time now is 01:42 AM. |
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.