Horse Predictor

Discussion regarding the spreadsheet functionality of Bet Angel.
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StellaBot
Posts: 818
Joined: Thu Jan 26, 2017 11:52 am

Heres the tyres and wheels
Enjoj something for once in your life

https://www.sportinglife.com/racing/res ... icap-chase
bobs71
Posts: 72
Joined: Sun Nov 20, 2016 10:22 pm

Stellabot - i take it you are trying to predict future times for individual horses in upcoming races - you are going about this completely wrong - Times should preferably be turned into numerical ratings on a scale (preferably on a similar scale as the BHA handicappers for easy comparison) - you need standard times(not averages , they dont work) based on a decent sample of past races (a running 5 years is a good fit) - to obtain accurate figures , you have to look at the results of each meeting as a whole ( 7 races on a card , say average 8 runners = 56 data points) - Times are compared to standard and the difference is converted to pounds (same criteria as Handicappers use) - estimations are then made by comparing expected ability to actual ability which then gives you an indication of how the surface (going) and conditions (weather - mainly wind) was affecting the course. There are other critical aspects including rail movements (affects the distance of the race , therefore standards need adjusting) , weight carried and maturity (a mature 4yo should run faster than a 3yo with ability being equal) - Wind plays a big part at some tracks -right now Newcastle AW times are notoriously slow due to the configuration of the track and headwinds (the track rises 31 ft from the mile start to the finish and most of that rise occurs in the last 3f) Times can be very useful especially with young horses , but with the style of jockeyship here only around 20-25% of all races are really truly run. Because of this pace dependancy , sectional times are needed to put them into context - only around 6 tracks have official sectionals (supplied by TPD) in the UK , so most turn to timing from video replays and editing software - it is quite easy to obtain reasonably accurate last 3f or 2f sectionals with a bit of practise - adding sectionals to the timefigures means performances can be up or downgraded - As you can see putting a figure to a time is a bit more complex than chucking some raw times into a spreadsheet and hoping something meaningful is produced - Data is built up over time and courses are profiled to the point that a good time rater can produce very decent figures to identify hidden betting prospects - i have attached a shot of my figures from the day Enable ran back at Kempton , along with the sectional upgrades (took from video) - there was a 2yo running that day who ran the last 3f faster than Enable - his final time was also very useful after accounting for all the factors - that 2yo (Kessaar) came out on Saturday there and won the Group 2 Mill Reef at Newbury.

SeaHorse - how's it going mate? - Hope your still punting strong.
Final timefigures - Kempton 08.09.2018.PNG
Sectionals - Kempton 08.09.2018.PNG
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StellaBot
Posts: 818
Joined: Thu Jan 26, 2017 11:52 am

Hi
Just to add
I dont trade/gamble sprints or any all weather races
I usually do 1m 2f + races on flat ,not all weather
The author does not accept any responsibility of loses by third parties
But any gains please donate a percentage
Good luck,
And maybe think about the free horse tracker services about ;)
StellaBot
Posts: 818
Joined: Thu Jan 26, 2017 11:52 am

Hi Bobs
Totally disagree
StellaBot
Posts: 818
Joined: Thu Jan 26, 2017 11:52 am

I completley disagree
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Derek27
Posts: 23685
Joined: Wed Aug 30, 2017 11:44 am
Location: UK

Agree with bobs71, just subscribe to Timeform - they know what they're doing!

Phil Bull use to say Timefigures tell you how bad a horse isn't.

In other words, a good time proves a horse is good, a bad time doesn't prove one way or the other how good the horse is, because ultimately a horses time depends on how fast the front runners go, not on how good the horse is. Any method that rates horses purely on time will overlook top quality horses that haven't yet put up a good time.

If you're going to guess how fast a horse would run if the jockey didn't lose it's irons, why not just guess what times the non-runners and unseated riders would have gone?
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Derek27
Posts: 23685
Joined: Wed Aug 30, 2017 11:44 am
Location: UK

StellaBot wrote:
Wed Sep 26, 2018 9:13 pm
I completley disagree
Bob's given you a fairly comprehensive explanation of what the issue is. To simply say you disagree doesn't mean much.
StellaBot
Posts: 818
Joined: Thu Jan 26, 2017 11:52 am

Mathematicians and phycisists cant be wrong
Clowns in pinstripe suits at racetracks or involved in racing dont manage appolo or space missions
Because they dont understand time
Thats why they are where they are
Nasa next job?
Dont think so
Newton Abbot steward at best
StellaBot
Posts: 818
Joined: Thu Jan 26, 2017 11:52 am

I will simplify it for the masses
And maths and physics works this out
Mo Farah runs 12 seconds over a furlong ggf flat
Smae course over a furlong ggs
Do I need the BHB to guess for me
Dont think so
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Derek27
Posts: 23685
Joined: Wed Aug 30, 2017 11:44 am
Location: UK

You don't need to be a mathematician, physicist or work for NASA to realise that horses don't run races as fast as possible. For horses with a turn of foot or running beyond their optimum distance, the slower the pace the better. They will actually deliver their best performances in a slow time.

Sorry Stellabot, I'm only trying to point out the flaws in your method (from what I've gathered, I haven't actually looked at the spreadsheet). If you want to carry on using it that's up to you. :)
StellaBot
Posts: 818
Joined: Thu Jan 26, 2017 11:52 am

Thanks Derek
Have a really long think
or drink ;)
You have pointed out your flaw
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Derek27
Posts: 23685
Joined: Wed Aug 30, 2017 11:44 am
Location: UK

StellaBot wrote:
Wed Sep 26, 2018 9:33 pm
Thanks Derek
Have a really long think
or drink ;)
You have pointed out your flaw
If you want to live in a world of delusion where anyone who disagrees with you is wrong and flawed, you are fully entitled to live there!

I've taken the trouble to point out the flaws in your method, so's Bob. If you'd rather believe that a top class horse isn't as good as a maiden because he won a race in a slower time, all I can say is good luck with your betting.
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