Trakus

[hracingplyr]

How are some of the players on here using Trackus? I see how many feet further horses traveled in a race. For example a horse travels 30 more feet during the race, would you adjust his speed rating next race? If yes how many points?

[ultracapper]

What's 30 ft, about 2 strides? No adjustment.

[Tom]

That's 3 - 3.75 lengths.

[raybo]

I don't think one can use feet traveled, alone. If a horse travels further than others by running wider in the turns one should factor in the fact that it is usually easier to run a wider radius in turns, because of less centrifugal force. If a horse runs further without running wide in the turns (moving in and out for position, or varying the path in the straights) then that is excess energy expenditure.

[whodoyoulike]

Originally Posted by hracingplyr

How are some of the players on here using Trackus? I see how many feet further horses traveled in a race. For example a horse travels 30 more feet during the race, would you adjust his speed rating next race? If yes how many points?

This is a good question. Because I've found using the the data as provided difficult in it's format, I'm currently only using it in viewing the chicklets during a race.

I have used their data when they became available years ago (which I still use) in developing a beaten length adjustment for sprints and routes.

How do you use their data?

[Cratos]

Originally Posted by whodoyoulike

This is a good question. Because I've found using the the data as provided difficult in it's format, I'm currently only using it in viewing the chicklets during a race.

I have used their data when they became available years ago (which I still use) in developing a beaten length adjustment for sprints and routes.

How do you use their data?

You are correct, Trakus data format leaves a lot to be desired.

[whodoyoulike]

Originally Posted by Cratos

You are correct, Trakus data format leaves a lot to be desired.

Btw, let the others figure the bl adjustment out on their own. I saw you once publish it in a response and it made me very uncomfortable. I don't mind if others come up with a figure as long as they've done the work there's no need to give it to them. And besides we may be wrong but your response did provide to me an independent reassurance of it's validity.

[raybo]

Originally Posted by whodoyoulike

Btw, let the others figure the bl adjustment out on their own. I saw you once publish it and it made me very uncomfortable. I don't mind if others come up with a figure as long as they've done the work there's no need to give it to them. And besides we may be wrong.

Yeah, as long as they all keep using the same BL adjustment (time per length) for all races and times, I'll be happy. Static time per length is so wrong, it's simply absurd.

[whodoyoulike]

Originally Posted by raybo

Yeah, as long as they all keep using the same BL adjustment (time per length) for all races and times, I'll be happy. Static time per length is so wrong, it's simply absurd.

That isn't the way I calculated it.

[Cratos]

Originally Posted by raybo

I don't think one can use feet traveled, alone. If a horse travels further than others by running wider in the turns one should factor in the fact that it is usually easier to run a wider radius in turns, because of less centrifugal force. If a horse runs further without running wide in the turns (moving in and out for position, or varying the path in the straights) then that is excess energy expenditure.

Correct, feet travelled alone is a nebulous metric, but when integrated into the aerodynamic drag formula, the COF formula, the surface resistivity formula, and the surface wind resistance formula you will have a powerful result.

A good example is to take Honor Code's last 3 races using Trakus data and look at them normalized at the 1-1/8m distance. He ran on a 1 mile track at CD, a 1-1/2 mile track at BEL and a 1-!/8 mile track at SAR and if you normalize his performances using Trakus data you will find a very revealing conclusion.

Also in using Trakus data, you should use weather data at time of the race and track configuration data.

My point of view in using Trakus is that it is best used in a statistical model using Bayesian statistics.

[cj]

As of now Trakus is showing bubkus for the 9th at Saratoga today. It was only a G1 race for probably the best sprinter in the country. This happens more than people realize. Trakus is nice, but there are issues.

[raybo]

Originally Posted by whodoyoulike

That isn't the way I calculated it.

Didn't say you did. I said that anyone using "static" beaten length multipliers, without regard for how fast the horses are traveling will most of the time adjust the raw time in error. The only times they will be right is in those instances when the horses happen to be traveling at a speed that corresponds to that static multiplier, and that would be pretty rare.

[Robert Fischer]

Trackus is an ingredient or a raw material or a commodity.

[whodoyoulike]

Originally Posted by Robert Fischer

Trackus is an ingredient or a raw material or a commodity.

I think it's an end product which can also be used as an ingredient or a raw material if you think you know what you're doing.

[Cratos]

Originally Posted by Robert Fischer

Trackus is an ingredient or a raw material or a commodity.

Trakus is what DRF should have evolve too, but they didn't.