the above plan will only succeed if all your bets are on the winnings side. how about when you lost the second day or 3rd day? what would be your amount to invest. what will be your strategy if one of the days you lost? you cant say that you will be 100% sure that you are on the winnings side..
Well, just like stock and crypto trading, people develop strategy such way that the probability of them making a lost is very low. My strategy is such that whenever there is a lost, there is a restart. So, let's say Day 3 tip loses, we restart from Day 1. For example;
On Day 3, $15 would be in saving. So when Day 3 tip fails, $10 will be used from the initial savings from Day 1 & 2 for a restart.
Also, the tips are such that the probability of losing is very small and tips will not be just any soccer match.