There are 3 types of bets you can place on almost all bookmakers. Those are singles, multiples (combinations) and full cover bets and full cover bets with singles (system). System bets are newest of those 3 types. They were introduced by UK bookmakers and have their roots in horse betting. There are some system bets that lock in better profit than others and those have become favorite bet types for people that are betting regularly. Those guys along with bookmakers have given full cover bets special names. Lucky 15, Lucky 31 and Lucky 63 are just some of them.
What is a Lucky 15?
The bet is called Lucky because because of the bookmaker's practice of offering bonuses for one or more winning selections (usually bonus is applied on winning all selections). Lucky 15 is a full cover bet with singles that is containing 4 selections and consisting of 15 separate bets.
What does it mean? Placing a Lucky 15 on any of the UK bookmakers meant that on your 4 selections you place 4 singles, 6 doubles, 4 trebles and a fourfold accumulator. UK bookmakers already have pre-loaded this setup as an option on their betslips, but you can place this kind of bet on any bookmaker that has system bets enabled. Outside UK this bet would be something like a system with 4 selections in a bet called 1,2,3,4/4.
What is a Lucky 31?
Lucky 31 is practically the same type of bet considering structure, the only difference is that it contains 5 selections. It is consisting of 31 separate bets: 5 singles, 10 doubles, 10 trebles, 5 fourfolds and a fivefold accumulator. Winning only 1 out of 5 selections guarantees some return and that is why this type of bet is also called a full cover bet with singles. It is also a common system bet around the globe and has different names depending from country to country.
What is a Lucky 63? You guessed it! It is a wager on six selections and consisting of 63 separate bets: 6 singles, 15 doubles, 20 trebles, 15 fourfolds, 6 fivefolds and a sixfold accumulator. One winning selection will guarantee a return.
How recommendable is to bet Lucky 15 or Lucky 31?
Well, it really all depends on odds you are placing. In horse racing odds for a horse to win a race are considerably higher than on example when placing a favorite in football. That is why it is used mostly for horse racing ( greyhounds as well ) and not so commonly used in other sports. The higher the odds are the chances to win a multiple bet are lower therefore Lucky 15 is sort of a balance between staking all money on singles and going wild crazy with 4 selections winning at once on high odds.
There has not been a proof that a person can have a guaranteed edge over a bookmaker placing any type of system bet including Lucky 15 or Lucky 31. These bets are used as a risk management strategy and most bookmakers are friendly towards placing such bets. Having said that, it is obvious that bookmakers do not suffer loss from that type of bets in the long run.7