Sports Betting Odds Explained: Understanding The Basics
If you are new to UK sports books online, you should first know how the betting odds work. It’s essential as it allows for you to understand the likelihood of possible events when playing video slots or table games; it also gives you an estimate as to what your winnings will be. What might appear confusing at first quickly becomes second-hand knowledge to all; this is especially true with online sportsbooks.
At its most basic, figuring out the odds of a bet is simplistic math. It predicts an outcome of a series of events that can happen when placing a sure bet. If someone is to roll a dice & bet on the number one being landed on, there’s a 16.67% chance that their bet will be correct. Betting site's odds present the outcome of any bet’s profitability rate; depending on the game being played, that rate can be increased with extra bets being made. Determining the best betting sites' odds is done with a simple division.
First, the payout percentage of the game being played is needed. This determines the likelihood of how often your bet will be awarded. When fractioning your bet with the various payouts of the game, what is found is the amount of money that can be awarded through your bet. Determining the betting odds gives a calculated answer to the probability of the win and the value of that potential win.
Decimal Odds
Two separate odds are used in the global gambling industry, with most UK betting sites following them. The norm is becoming decimal odds as they are more simplistic for everyday players. Fractional odds were the previous norm, reaching their height of popularity in the United Kingdom. It was primarily used for horse races and bookies; over time, it was used in casinos but is primarily found with betting sites online. Only ten years ago was this method used by most gambling establishments. In recent years with online gambling rising in popularity, this method has changed so much that it’s extended to horse racing and land-based gambling.
Fractional Odds
The reasoning behind decimal odds gaining the favour is that fractional odds never would showcase the possible winnings for players. Instead, it only showed the likelihood of those payouts being won. This only gave players and the casino half of the equation. Betfair was one of the first gambling establishments to move from fractional to decimal odds. That was only a few years ago, upon which the rest of the industry made their way to the same method.
Simple calculations using decimal odds give players the advantage of table games and other casino games. The following factors listed above don’t affect playing a video slot. Those games operate on a random number generator, allowing all triggered wins to be done randomly.
This gives all an equal opportunity to win the largest payouts or even the progressive jackpot. That's different, however, when playing video poker, blackjack, roulette, keno or other table games. Determining the odds will allow for a strategy to be developed, giving players knowledge of when and where to place bets to influx their rate of profitability.
Best Online Sports Books & Betting Bonuses September 2023
| Casinos | Bonus | Visit |
|
Gxmble Casino
|
400% up to £2,500 Welcome Bonus Weekly Reload Bonuses - No Max Cashout! ✔ Generous Welcome Bonus ✔ Top Slot Game Providers ✔ Good Array of Payment Options ✔ Fast Cashouts |
Visit |
| 1st - 200% up to 500€ / 2nd - 100% up to 750€ / 3rd - 100% up to 1250€ (Total: 400% up to 2500€) - 5X wagering. Full terms and conditions apply. 18+ T&C's | BeGambleAware® #AD | ||
|
Golden Lion Casino
|
400% up to £2,000 Welcome Bonus 125 Free Spins: Use Promo Code: ALIVE125 ✔ Crypto Support ✔ Top Games & Slots ✔ New Summer Pick! |
Visit |
| Welcome Package: LION1 400% up to £2000+ 100 Free spins. Welcome Package LION2 200% up to £1000 + 50 Free spins. Welcome Package LION3 150% up to £1000 + 25 Free spins. Welcome Package LION4 100% up to £1000. Welcome Package LION5 100% up to £1000 18+ T&C's | BeGambleAware® #AD | ||
|
Rolletto Casino
|
Welcome Bonus Package to to £6,000 Bitcoin Bonuses, Sports Betting Offers
|
Visit |
| The minimum deposit eligible for the Bonus is 20€/$. Casino Bonus applies for the Slot games. Bonus will be credited to your account immediately after your first deposit. Then you should activate the bonus manually. (You should activate the bonus first and then play casino, otherwise, you will not get the bonus). You can only benefit from this bonus once and only on your first deposit. This Bonus cannot be used in conjunction with any other promotion. Casino Bonus and Deposit are subject to wagering requirements of thirty (30) times deposit plus bonus amount. 18+ | BeGambleAware® #AD | ||
|
Betfred
|
Get £40 In Bonuses When You Stake £10 Use Code: WELCOME40 ✔ Experienced Company Behind The Brand ✔ Huge Betting Selection ✔ In Play Betting |
Visit |
| New 18+ UK customers only. Register using the promo code WELCOME40, deposit and place first bet of £10+ on Sports (cumulative Evens+) within 7 days of registration. First bet must be on Sports. £30 in Free Bets and £10 in Free Spins (50x20p) credited within 10 hours of bet settlement. Free Bet stakes are not included in any returns. Bonuses have a 7-day expiry. Payment restrictions apply. SMS verification and/or Proof of I.D and address may be required. Full T&Cs apply. 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
BC.Game
|
360% Welcome Bonus Plus 4 x Reload Bonuses ✔ Top Crypto Casino ✔ Top Slots ✔ Great Welcome Bonus ✔ Slick Design ✔ Sports Betting ✔ |
Visit |
| BC.GAME offers not 1 but 4 rewarding deposit bonuses. 2nd Deposit: 150% 3rd Deposit: 225% and 4th Deposit: 300%. Full terms apply. 18+ T&C's | BeGambleAware® #AD | ||
|
Mr Sloty Casino
|
400% up to £2,000 Welcome Bonus 120 Free Spins Use Code: 400P120 ✔ Great Selection of Games ✔ Fast Cashouts ✔ Generous Welcome Bonus |
Visit |
| New players only. A 400% match first-deposit bonus (“First-Deposit Bonus”) on the player’s first real money deposit in the casino for up to a maximum bonus of £2000. x50 Wagering. nly slot games can be used to complete the play-through requirement of the bonus unless stipulated otherwise in the promotions’ terms and conditions. Full terms apply. 18+ T&C's | BeGambleAware® #AD | ||
|
FreshBet
|
Welcome Bonus up to £1,500
✔ Great Welcome Bonus ✔ Casino Sports & Esports ✔ New Global Brand |
Visit |
| As a new customer at FreshBet Casino, you are greeted with a fantastic 100% Welcome Bonus up to 1500 $/€/£! The minimum deposit is 20 $/€/£. 1st Deposit Bonus 100% up to 500 $/€/£ 2nd Deposit Bonus 50% up to 500 $/€/£ 3rd Deposit Bonus 100% up to 500 $/€/£ 18+ T&C's | BeGambleAware® #AD | ||
|
All British Casino
|
Welcome Bonus 100% up to £100 Always 10% Cashback Bonuses ✔ Slick Design ✔ Highly Trusted Operator ✔ Loads of Sister Sites ✔ Generous Bonuses ✔ Sports Betting Available |
Visit |
| #AD New customers only, min deposit £20, wagering 35x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction. Full T&C’s apply 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
The Pools Sports
|
Bet £10 Get £20 Welcome Offer Acca Boosts, Best Odds Guaranteed,Free Spins Offers ✔ Long Time UK Betting Brand ✔ Generous Betting Offer ✔ Superb Choice of Betting Options ✔ Best For Football Betting |
Visit |
| 18+, UK only. Deposit and place a minimum £10 cash bet at single or accumulated odds of 1/1 or greater and we will give you 1 x £5 in free bets plus an extra 3 x £5 Free Bets the following day. Applies to first cash bet only. Free bets credited as 4 x £5 bets to use on 3x Any sport & 1x Virtuals. Cashed Out, Void or Draw No Bet wagers do not qualify for this promotion. 1 x £5 Free Bets are credited upon qualifying first bet settlement, other free bets credited by midday the day after your first bet settles. 7-day free bet expiry. Available once per customer. This offer cannot be combined with any other promotion. Full T&C's apply. 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
BetGoodwin Sports
|
£50 Back as Free Bet up to £25 On First Day Losses ✔ Great Sgin Up Offer ✔ Trusted Brand ✔ Huge Choice of Betting Marketd |
Visit |
| Register a new online account with Betgoodwin. Must have a minimum of 3 bets of £10 or more on separate events at odds of evens (2.0) or bigger on first day. First day losses equals all settled stakes less all returns. The day finishes at 23:59 on day of registration. Free bets must be used in their entirety and stakes are deducted from returns. Free bets non withdrawable Free bets to be credited within 24 hours. This offer can not be used in conjunction with any other Betgoodwin promotion. If your free bet is subsequently voided it will be replaced within 24 hours. Cashed out bets do not count towards this offer. This offer is limited to a free bet award per person/household/IP address. Betgoodwin reserves the right to withdraw or terminate this offer only once the full duration of the promotion has been completed. Betgoodwin Terms and Conditions apply. 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
Britian Bet
|
Deposit £10 Get A £10 Free Bet
✔ Competitive Sign Up Betting Offer ✔ Superb Choice of Betting Markets ✔ Trusted Brand |
Visit |
| New Players Only. Free bet - one-time stake of £10, min odds 1.5, stake not returned. 1X wager the winnings. Wager from real balance first. Wager calculated on bonus bets only. Max conversion: £200. Valid for 7 Days from issue. Withdrawal requests voids all active/pending bonuses. Excluded Skrill deposits. Full Terms apply. 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
Luckster Casino
|
Welcome Bonus up to £200 200 Bonus Spins On Popular Slots ✔ Great Theme & Concept ✔ Generous Welcome Bonus ✔ Highly Trusted Casino Company ✔ Sister Site To Many ✔ Top For Slots |
Visit |
| zT&Cs Apply. 18+. New Players Only. First Deposit: 100% up to £50 + 20 spins on Starburst. Min deposit £10. Second Deposit: 50% up to £75. Min deposit £20. Third Deposit: 50% up to £75. Min deposit £20. 35x wagering applies to spins and bonus funds. Max win is £100. Full T&Cs Apply. – www.begambleaware.org #adl T&Cs apply. Please gamble responsibly. 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
Mr Play Sports
|
Bet £10 Bet £10 Acca Offers, Daily Site Promotions ✔ Fantastic Betting Odds ✔ All the major leagues & events ✔ Great Bonuses & Daily Offers ✔ Trusted Platform |
Visit |
| Standard Welcome Offer terms(Bet 10 Get 10): This offer is for new customers only and is available once per household. Max. FreeBet amount: £10 Minimum Deposit and wagering on sport to activate the Free Bet is: £10 Void/cancelled or cashed out bets do not count towards wagering to activate the free bet. Offer valid only to customers making a first deposit of £10 or more. Offer only applies to players who are residents of United Kingdom, Norway, Finland, Germany and Canada. 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
JeffBet Sports
|
Bet £10 & Get a £30 Free Bet Extra Promotions Running Weekly ✔ Excellent New PlayerBetting Offer ✔ Casino & Betting Options ✔ Trusted Sports Betting Platform ✔ Good Choice Of Betting Markets |
Visit |
| New Players Only. Min £10 qualifying bets, stake not returned. Free bet - one-time stake of £30, min odds 1.5, stake not returned. 1X wager the winnings. Wager from real balance first. Wager calculated on bonus bets only. Max conversion: £200. Valid for 7 Days from issue. Withdrawal requests voids all active/pending bonuses. Excluded Skrill deposits. Full Terms Apply 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
Speadex Sports
|
Get £35 In Free Bets
✔ Highly Trusted Brand ✔ Generous Welcome Bonus Offer ✔ Plenty of Betting Options ✔ Casino Available |
Visit |
| Place a qualifying £25 fixed odds bet at odds of 1/2 or greater. Qualifying bet cannot be placed in-play or cashed out early. A first free £5 fixed odds bet will be credited upon settlement of the qualifying bet.. 4 x following £5 free fixed odds bets will be added to your account on consecutive days. After your first free fixed odds bet you will also get a free £5 Total Goals spread bet. And after your second free fixed odds bet you will also get a second free £5 Total Goals spread bet. You must have a full spread betting account to be able to claim the free Total Goals spread bets. Note, future spread spread bet placed, losses can exceed deposit. Place a smaller qualifying fixed odds single bet at minimum odds of 1/2 and get different amounts of free fixed odds bets as per below: Free bets must be claimed within 28 days of opening. Free bet stake not included in any winnings. Ts&Cs Apply. 18+ begambleaware.org 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
Luckland Casino
|
Welcome Bonus 100% up to £50 50 Bonus Spins ✔ Highly Established Casino ✔ Great Welcome Offer ✔ Salon Prive Live Games ✔ Simple But Highly Effective Casino |
Visit |
| New players only 18+. Min deposit £20. 40x wagering applies to match up bonus . Offer valid for 1 week. 50 Spins on Starburst. 40x wagering applies to Spins 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
NY Spins Casino
|
Welcome Bonus 100% up to £50 50 Wager Free Spins on Book of Dead Slot ✔ Trusted Company ✔ Wager Free Spins ✔ Extra Bonuses in the 'Market Place' ✔ Tons of Premium Games ✔ Evolution Live Dealer Games |
Visit |
| 18+ new players only. Maximum £50 bonus. Minimum deposit: £20. Bonus wins are capped at £500. Max bet with active bonus: £2. Wagering requirement 100% match deposit bonus: 30 times sum of deposit + bonus. Winnings from Free Spins are credited as Real Money without wagering requirements. Free Spins expire after 3 days. Some games may not be played with an active bonus. Games may contribute differently when wagering a bonus. 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
Voodoo Dreams Casino
|
Welcome Bonus 100% up to £50 50 Wager Free Spins ✔ All The Famous Slots ✔ Gamification Games ✔ Super Unique Brand |
Visit |
| 18+. new players only. Maximum £50 bonus. Minimum deposit: £20. Bonus wins are capped at £500. Max bet with active bonus: £2. Wagering requirement 100% match bonus: 30 times sum of deposit + bonus. Winnings from Free Spins are credited as Real Money. Some games may not be played with an active bonus. Games may contribute differently when wagering a bonus. Bonus expires after 30 days if wagering requirement has not been met. One bonus allowed per person, address, device, IP. Full bonus terms apply 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
Duelz Casino
|
Welcome Bonus up to £300 100 Spins on Book of Dead Slot ✔ Trusted Operator ✔ Great Welcome Bonus ✔ Interactive Casino |
Visit |
| 18+ new players only. Minimum deposit: £20. Maximum £100 bonus. Max bet with an active bonus: £2. Wagering requirement 100% match bonus: 30 times sum of deposit + bonus. Max redeemable from welcome bonus: £500. 100 Free Spins are given out 20 per day on Book of Dead for 5 days in a row, log in each day is required. Max Free Spins winnings: £100. Winnings from Free Spins are credited as bonus money with a wagering requirement of 45 times. Free Spins expire after 3 days. Some games may not be played with a bonus. Games may contribute differently when wagering a bonus. 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
Jackpot Casino
|
Deposit £15 & Get 50 No Wager Free Spins Keep What You Win On Bigger Bass Bonanza Slot ✔ Great Playtech Live Games ✔ Top For Lotto Betting ✔ 500+ Slots |
Visit |
| This one-time offer is only available here for new UK customers of Jackpot.com. To participate a minimum £15 bet is required. Any terms not specified in these Special Promotional Terms, the Promotional Terms shall apply and will be subject to Jackpot.com Terms and Conditions. 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
Lottomart Games
|
100% up to £100 Welcome Bonus Free Scratchcards & Casino Promos ✔ Wager Free Bonus ✔ Top UK Slots ✔ Trusted Company ✔ Biggest Online Lotteries |
Visit |
| New customers only. All new players can get a 100% deposit match bonus on your deposit, up to £100 - Deposit at least £10 and claim up to £100 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
Playojo Casino
|
80 Free Spins on 1st Deposit No Wagering on Bonuses - EVER! ✔ Great Track Record ✔ All The Popular Games ✔ Wager Free Bonuses |
Visit |
| This offer is only available for first time depositors. Min deposit is £10. 50 Free Spins on Book of Dead. Spin Value: £0.10. After your first deposit you may claim your 30 Extra Free Spins by visiting the Kicker Section. No min withdrawal. This offer cannot be used in conjunction with any other offer. This offer is only available for specific players that have been selected by PlayOJO. OJO’s Rewards and Game Play policy applies. 18+ T&C's | BeGambleAware® 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
Plaza Royal
|
Welcome Bonus up to £200 100 Bonus Spins ✔ New Casino ✔ Trusted Company ✔ 60+ Live Games ✔ New Slots ✔ Fast Payouts |
Visit |
| Applies only to new depositing players. 18+. Minimum deposit: £10. 35x Wagering requirement applies to match up bonus. Spins credited in specific games. Spins expire after 24 hours. Wagering requirement applies to spins. Terms and Conditions apply. 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
Spin Rio Casino
|
Welcome Bonus up to £200 100 Bonus Spins ✔ New Trusted Casino ✔ Trusted Company ✔ High Stakes Live Dealer Games ✔ Popular UK Slots |
Visit |
| Applies only to new depositing players. 18+. Minimum deposit: £10. 35x Wagering requirement applies to match up bonus. Spins credited in specific games. Spins expire after 24 hours. Wagering requirement applies to spins. Terms and Conditions apply. 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
VegasLand Casino
|
Welcome Bonus up to £200 200 Bonus Spins On Popular UK Slots ✔ Trusted Long Time Operator ✔ New Brand for 2023 ✔ Amazing Welcome Offer ✔ Top Slots ✔ Live Casino & Jackpots |
Visit |
| 18+; new depositing players only. Welcome package split over 3 deposits: Min. 1st deposit £10. Min. 2nd and 3rd deposit £20. 35X Wagering requirement applies to match up bonus and spins. Spins credited in specific games. Spins expire after 24 hours. Terms and conditions apply 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
|
Peachy Games
|
100% up to £50 Welcome Bonus 20 Spins on the Book of Dead Slot ✔ Popular UK Brand ✔ Great Sign Up Bonus ✔ Top For Slots & Jackpots |
Visit |
| New customers only. Minimum first deposit of £20 required. Maximum promotion amount per player is £50 Bonus and 50 Free Spins. The welcome offer is not available on pre-paid card or e-wallet (Neteller and Skrill) deposits. Bonus and free spins will be credited automatically. 100% deposit bonus up to £50 bonus will be credited upon first deposit. 50 free spins will be received in 5 daily increments of 10 starting within 24 hours of first deposit. Free spins are only available on Starburst. Free spins value is £0.10 per spin. Bonus will expire 30 days after qualifying deposit. Free spins will expire 48 hours after being credited/ 18+ T&C's | BeGambleAware® #AD Gambling License ✔ | ||
