However, intuitively we know these staking plans to be overly naive as we would be putting the same amount of money on a horse with low odds compared to a horse with high odds. As we are looking to maximise our profits we should be putting a larger stake on a low odds bet as the return will be less.
To find the optimal staking plan we could take a correspondence course in statistics and dedicate several years into research. Fortunately we live in age where this research is at our fingertips. From probability theory we have the Kelly Strategy where the optimal percentage of our betting bank is calculated from the odds of the bet and our own estimate of the probability of the horse winning.
Using an online Kelly Strategy Calculator just feed in the values to get the percentage of the betting bank to put on each horse. Now the Kelly Strategy can give us some scary percentage stakes if we have an initial run of high odds horses so we could adapt it to a Half Kelly Staking Plan where we wager half the percentage advised by the Kelly Strategy. This would result in a slower accumulation of gambling profits but a less hair-raising ride.
Systems are based on many different aspects of horse racing using a combination of factors. The ones here are what are usually the most popular ones. They have done the rounds in one form or another during the years.
This system is based on backing horses which were favourite at their most recent race and were beaten. Many tell you to back beaten favourites which have a consistent form line (wins and places) and are racing in the same class as they have been competing against. One system I favour is to back beaten favourites that last raced in heavy going or are racing at a distance 400 metres (2 furlongs) shorter or longer than their last race. Backing a horse which was a beaten favourite at its first start next time it runs is also a favoured system because the horse will always improve on its first run no matter what.
https://worldhealthreviews.com/shadow-racing-system-review
https://worldhealthreviews.com/real-life-self-defense-review
http://www.binaryforexacademy.org/auto-lotto-processor-review/
The "horses for courses" system is almost as old as racing itself with literally dozens of variables of the timeless system and why not for there is little doubt that many horses take a liking for some courses and dislike others.