Betting Knowledge

Accumulators allow you to combine multiple bets, and potentially win big when all your selections win. Accumulators may seem great news to casual gut instinct bettors. After all, they offer the chance to win a lot of money for a small amount gambled. However, for the value bettor who is looking to potentially make a long term profit from betting, accumulators pose a great problem! We have already discussed the notion of overround – bookmakers will want to build in a profit margin on the markets they offer. However, when overrounds are multiplied it can be a big problem for the bettor! Hence, we are posting this Mitigating accumulator overround disaster article.

Let’s say you place a double (2 selection accumulator), with both bets having an overround of 12%. To calculate the combined overround:

[(1.12 x 1.12) multiplied by 100] minus 100 = 25.44% overround

Bookmakers would love you to place this accumulator, rather than 2 single bets. As an accumulator the total overround is more than double the individual overrounds.

Let’s say you place a 4 selection accumulator, and all four bets have a 12% overround. To calculate the combined overround:

[(1.12 x 1.12 x 1.12 x 1.12) multiplied by 100] minus 100 = 57.35% overround

As an accumulator the total overround is a lot more than quadruple the individual overrounds.… Read the rest

Full Cover Bets in horse racing betting, are bets consisting of all possible doubles, trebles, and fourfold and above accumulators (if appropriate) across a given number of selections. As long as at least two of your horses win, you will get something back (although this does not necessarily mean you will profit overall).

• Trixie – Choose three horses you think will win (from three different horse races). Your bet consists of four separate bets (three doubles, and one treble). If you wish to include the 3 singles too (Trixie, plus 3 singles), the bet is called a Patent.
• Yankee – This time you pick four horses to win, from four different races. Your bet consists of six doubles, four trebles, and one fourfold accumulator. That’s 11 separate bets. If you wish to include the 4 singles too (Yankee, plus 4 singles), the bet is called a Lucky 15 (as 15 separate bets are placed).
• Canadian – Make five selections from five different races to win. 26 separate bets are placed (10 doubles, 10 trebles, 5 fourfold accumulators, and one fivefold accumulator). If you wish to include the 5 singles too (Canadian, plus 5 singles), the bet is called a Lucky 31.

Accumulators Explained: If you place a double or a treble, you have placed 2 or 3 bets respectively. ALL your bets need to win, for you to make a profit (and get your stake back). If all your bets don’t win, you lose your stake and don’t get any profit. If your first bet wins, BOTH the winnings and the stake are combined to become the stake for the second bet etc. 4 bets can be called a fourfold. 5 bets can be called a fivefold. 6 bets can be called a sixfold. Although, all the above work in the same way (all the bets have to win, for you to make a return and get your original stake back), technically only 4 bets and above are called accumulators (although some people still decide to call doubles and trebles accumulators). Accumulators suffer from overround multiplication issue.

• Let’s say you have £60 to bet in total, on 4 bets at odds of 3/1, 4/1, 5/1, and 6/1.
  If you bet £15 on each of this outcomes separately, you stand to make the following profit on each bet (and get your £15 stake back):
  • 3/1 : £45
    4/1: £60
    5/1: £75
    6/1: £90
    If all the selections won you would get £270 in profit (and get your £60 of stakes back).

Overround Explained: The odds offered by bookmakers are unlikely to correspond exactly to the actual probabilities of the outcomes in any market happening, as no bookmaker is likely to operate without trying to offset its costs (and trying to make a little something on top)! Bookmakers are likely to be taking money from lots of customers over the possible outcomes – they may try to guarantee themselves a profit regardless of the result. Bookmakers may start a market by working out the actual probabilities of the outcomes in a market occurring and then incorporating a profit margin into the odds, but as money comes in on the market they will often adjust prices to attract less or more money to particular outcomes – e.g. they may want to limit their liability on an outcome they already face a big payout on if it comes through, or they may want to attract more money to different outcome(s) to one(s) they already have taken a lot of money on to guarantee a profit or minimise potential losses. How do bookmakers use overround to try and make profits?

As an example, here are the odds a bookmaker was offering, at the time of writing, on an upcoming Rugby Union match.… Read the rest

Numerous websites and software tools have popped up which claim to allow you to spot guaranteed profitable betting opportunities, by taking advantage of the differing prices on outcomes in the same market between different bookmakers. We explained how you could start to find the best value markets at your favourite bookmaker. This involves working out the overround on a particular market. The lower the overround the better. However, these websites and tools take this a step further, and claim to be able to find opportunities (by placing bets at multiple bookmakers, on different outcomes in the same market) when there will effectively be no overround, and in fact the book will be less than 100%. This is called arbitrage betting. We strongly recommend you avoid arbitrage betting. Although, the opportunities they spot will be real (if you are using a reputable service), we still recommend you avoid this form of betting. There is usually a fee involved to use these services, and even though the opportunities to make a profit might be there in theory, in practice they are difficult to profit from.

Why avoid arbitrage betting? Your account may be closed, or bets revoked.

• Bookmakers generally hate arbitrage betting.

We have already explained how to understand the Fractional Odds system used by UK bookmakers, as well as the popular Decimal Odds system. For completeness, we thought we would also explain the ins and outs of Moneyline Odds. This system is popular in the USA, and as such we will use dollars in the examples below (but of course the same principles apply whatever the currency). To understand Moneyline Odds, first look at if the odds are positive or negative. Then, look at the odds. Moneyline Odds are expressed per $100 staked (although of course, you should be able to bet any amount, subject to minimums or maximums).

• POSITIVE Moneyline Odds show how much profit you will get if your bet wins, for every $100 staked (if you win you will get back your original stake too).
• NEGATIVE Moneyline Odds show how much you will have to stake, to get $100 profit if your bet wins (if you win you will get back your original stake too).

Let’s look at two actual examples:

• +500: this means for every $100 bet, $500 profit will be paid if your bet wins (i.e. if your bet wins they will return you original stake of $100, and pay you another $500).

Having understood the ins and outs of Fractional Odds (traditionally used by UK bookmakers), we think it will be a useful exercise for you to understand the Decimal Odds system as well. Decimal Odds show how many times your original stake (INCLUDING your original stake) you will get back if your bet wins. Obviously, this number should always be more than 1.0 as you should always get back your original stake if you win, plus some profit. Compare that to Fractional Odds which only show the potential profit you will get back if you win (of course regardless of the odds system, you will always get your original stake back if you win).

Let’s look at some Decimal Odds examples:
6.0 – for every £1 bet you will get £6 back, if your bet wins (i.e. you make £5 profit, per £1 staked). 5/1 (Fractional Odds), and 6.0 (Decimal Odds) are equivalent.
1.2 – for every £1 bet you will get £1.20 back, if your bet wins (i.e. you make £0.20 profit, per £1 staked). 1/5 (Fractional Odds), and 1.2 (Decimal Odds) are equivalent.

Fractional Odds are popular in the UK & Ireland. Decimal Odds are popular in Continental Europe, Australia, New Zealand, and Canada.… Read the rest

Bookmakers in the United Kingdom (and Ireland) usually quote prices using fractional odds (i.e. 5/1, 1/2, etc). How much do you really know about Fractional odds? Fractional odds show how much the bettor can profit, relative to their stake, IF their bet wins. In this article ‘Fractional Odds explained in detail’ we explain everything you will need to know about fractional odds.

• Fractional odds show the payoff:stake ratio. The left hand number of the fractional odds is the amount of profit you will make IF your bet wins (PAYOFF), and the right hand number is the amount you will have to gamble (STAKE). IF your bet loses, you forfeit the stake. If your bet wins, you get your stake back AND the payoff.
• 5/1 odds mean that if you bet £1, you will make £5 profit if your bet wins (i.e. if your bet wins the bookmaker will return you original stake of £1 AND pay you £5 profit). Remember, the odds just show a ratio – you don’t have to bet exactly £1. If you bet £2, you make £10 profit if your bet wins. If you bet £60, you make £300 profit if your bet wins.