Betting Probability?

[YT2095]

here`s one for the "maths" folks.

 

yet again I`ve won on the Grand National (horse racing).

I`ve won ever single year for the last 22 years without fail.

I bet on 3 horses only and the average amount of horses in the race is about 40.

 

the amounts I bet are only small as I play for fun only and it`s only once a year. I`ve never come back with less that I`ve bet in 22 years. I bet Each way, meaning that my bet will take into account 1`st, 2`nd, 3`rd and 4`th placements.

 

what are the probabilities of this being acheived?

[wolfson]

well ill need a bit extra info, do you randomly select your horses?

 

and

 

What are the average odds that you pick for your horse to win at the betting office?

 

and then i should be able to answer your question

[YT2095]

I`m rather unscientific about my choices, if I like the name or get a "feeling" about it, then I pick it, so you could in effect say it was random.

 

the odds vary, anything from 300:1 down to about 5:1

the Grand National being such a huge and unpredictable race it`s said to be "Anyones race" as in the outcome is less certain than other smaller races.

 

but the odds of winning 22 years in a row and making more money than I spend seems a little high for such a random way of picking them?