Online betting can be a tricky world to get into. The many aspects of starting your galactic journey into virtual casinos can be intimidating—how can you know which are the best betting sites Colorado residents can use? One word.
Us!
GamblingGuy.com is here to guide you through a list of Colorado sportsbooks, revealing the absolute top Colorado sportsbooks for you and also explaining exactly how sports betting legal in Colorado works. You’ll be an expert on CO online sports betting in no time as we discuss the history of CO sportsbooks and CO sports betting as a whole.
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Gambling problem? Call 1-800-GAMBLER (Available in the US) Call 877-8-HOPENY or text HOPENY (467369) (NY) Call 1-800-327-5050 (MA) 21+ only. Please Gamble Responsibly. Call 1-800-NEXT-STEP (AZ), 1-800-BETS-OFF (IA), 1-800-981-0023 (PR). Rewards are non-withdrawable bonus bets that expire in 7 days. In partnership with Kansas Crossing Casino and Hotel. See BetMGM.com for Terms. US promotional offers not available in DC, Mississippi, New York, Nevada, Ontario, or Puerto Rico.
Whatever the moment. It’s Never Ordinary at bet365. That’s why if you sign up now you will receive $200 in Bonus Bets Win or Lose when you bet $5! Minimum $10 deposit required. Minimum odds -500 of greater. Bonus Bets wager excluded from returns. New customers only. T&CS, time limits and exclusions apply. GAMBLING PROBLEM? CALL OR TEXT 1-800-GAMBLER (AZ/CO/IL/IN/KS/KY/LA/MD/NC/NJ/OH/PA/TN/VA) or 1-800-BETS OFF (IA). 21+ (18+ KY). Must be present in AZ/CO/IA/IL/IN/KS/KY/LA (select parishes)/MD/NC/NJ/OH/PA/TN/VA.
21+ New users only. Must register using eligible promo code. First bet after registration must qualify. Max. Bonus Bet: $1,000. Bonus Bet expires 14 days after receipt. Void where prohibited. See Caesars.com/promos for full terms. Gambling Problem? 1-800-GAMBLER (1-800-426-2537)
Gambling Problem? Call 1-800-GAMBLER or visit RG-help.com. Call 1-888-789-7777 or visit ccpg.org/chat (CT). Hope is here. GamblingHelpLineMA.org or call (800) 327-5050 for 24/7 support (MA). Visit www.mdgamblinghelp.org (MD). Call 1-877-HOPE-NY or text HOPENY (467369) (NY). 21+ (18+ DC, KY and present in select states for KS in affiliation with Kansas Star Casino). First online real money wager only. $5 first deposit required. Bonus issued as nonwithdrawable bonus bets which expire 7 days after receipt. Restrictions apply. See terms at sportsbook.fanduel.com.
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Withdrawal
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21+ and present in most states. (18+ DC/KY/NH/WY). Void in ONT/OR/NH. Eligibility restrictions apply. On behalf of Boot Hill Casino & Resort (KS). Pass-thru of per wager tax may apply in IL. 1 per new customer. Must register new account to receive reward Token. Must select Token BEFORE placing min. $5 bet to receive $300 in Bonus Bets if your bet wins. Min. -500 odds req. Token and Bonus Bets are single-use and non-withdrawable. Token expires 2/1/26. Bonus Bets expire in 7 days (168 hours). Stake removed from payout. Terms: sportsbook.draftkings.com/promos. Ends 1/25/26 at 11:59 PM ET. Sponsored by DK.
When it comes to
online gambling Colorado, one of the best parts of the internet is that it makes gambling convenient and easy to access from anywhere – even your sofa! It also means that it’s easy to switch from website to website, with no physical relocating required.
Even those who think they’ve found the
best online casino in Colorado
may be surprised by the picks on our lists of the best CO sportsbooks. That’s why we recommend a quick look through what we’ve found regarding CO online betting, as there may be an online sportsbook you haven’t considered before. You may be looking for Formula 1 betting sites or maybe the sportsbook with the best basketball odds – we’ve found the very best in Colorado.
Up To $1500 in Bonus Bets Paid Back if your First Bet Does Not Win
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Gambling problem? Call 1-800-GAMBLER (Available in the US) Call 877-8-HOPENY or text HOPENY (467369) (NY) Call 1-800-327-5050 (MA) 21+ only. Please Gamble Responsibly. Call 1-800-NEXT-STEP (AZ), 1-800-BETS-OFF (IA), 1-800-981-0023 (PR). Rewards are non-withdrawable bonus bets that expire in 7 days. In partnership with Kansas Crossing Casino and Hotel. See BetMGM.com for Terms. US promotional offers not available in DC, Mississippi, New York, Nevada, Ontario, or Puerto Rico.
Behind Colorado online sports betting – how it came to be legal
Most of the
best online USA bookmakers
we know and love today are used in states where gambling was once illegal, usually both online and in-person. Colorado isn’t much different – sports betting Colorado in its online form only became legal in 2019, which may seem astonishingly late, but many states have only legalized online gambling very recently.
This has led to a lot of new sites taking advantage of this open space in the CO online sports betting world. You may be interested to learn that some of the first forms of gambling to be legalized in Colorado were in-person horse racing and greyhound racing betting in 1948 – long before the times of online gambling. A state-wide lottery was launched in 1982.
However, it’s interesting to note that greyhound racing is no longer permitted in Colorado. This has been attributed to a general lack of interest in the sport. Still, mainly a law change in 2014, meaning that those interested in in-person or online greyhound race gambling may need to look elsewhere – despite the timing of the 2014 law, however, no greyhound races have run in Colorado since 2008. This does not apply to horse racing.
Online betting was launched in Colorado in May 2020 after the 2019 law change, meaning that you have plenty of choices regarding CO sports betting.
The best online casinos & sportsbooks in Colorado
The Best Online Casinos & Sports Betting Sites in Colorado 🇺🇸
GamblingGuy.com’s pick – from the best betting sites Colorado, we picked one just for Colorado sports bettors!
BetMGM
is an online casino and sportsbook that we would recommend for many gamblers, whether new or experienced, who are interested in the best CO sportsbooks. For starters, we at GamblingGuy.com were impressed by the first moments we spent on the site thanks to the classy aesthetics, which include a sleek gray and gold color scheme as well as a logically ordered collection of menus.
Furthermore, once you sign up, you can take advantage of some of the
best betting odds for NFL
from BetMGM where you can take advantage of a 100% deposit match bonus of up to $1000. That means you could double your money back in site credits on your first deposit, allowing you to have a bit more breathing room when you check out the BetMGM sportsbook and casino games.
Sports betting Colorado has never been easier or more appealing than it is with BetMGM, so we at GamblingGuy.com would recommend this operator to both beginners and more experienced online gamblers. If you’re looking for a change, then the grass may well be greener over at BetMGM! Make sure to check out our
BetMGM Colorado bonus review
page too!
Sports Promo
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Up To $1500 in Bonus Bets Paid Back if your First Bet Does Not Win
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Gambling problem? Call 1-800-GAMBLER (Available in the US) Call 877-8-HOPENY or text HOPENY (467369) (NY) Call 1-800-327-5050 (MA) 21+ only. Please Gamble Responsibly. Call 1-800-NEXT-STEP (AZ), 1-800-BETS-OFF (IA), 1-800-981-0023 (PR). Rewards are non-withdrawable bonus bets that expire in 7 days. In partnership with Kansas Crossing Casino and Hotel. See BetMGM.com for Terms. US promotional offers not available in DC, Mississippi, New York, Nevada, Ontario, or Puerto Rico.
Our top five tips for betting on sports securely and fairly in Colorado – how to have the best time online
Always stay calm
In order to keep yourself safe from potential scams and illegitimate websites, you should always remain calm while betting online. If you feel like you’re being pressured, especially when your real money is involved, then this may be a sign of an unfair betting experience.
Use secure websites
Following on from number one, you can usually identify a secure website by looking at the address bar to find the URL of the website. If it has ‘HTTPS://’ with the added ‘s’ then it is an encrypted connection that should keep your details safe – if it doesn’t, then beware!
Look at the reviews
Usually, when people have a bad experience with an online sportsbook or casino, they will post a review somewhere online to warn others. Don’t wander into an online casino blind – make sure you check out the reviews of a sportsbook, both positive and negative.
Check out the certificates
Well, not actual certificates. We’ll explain – if you scroll to the bottom of a website, you should find a footer with lots of information in it, such as copyright, terms and conditions, and, most importantly, the relevant gambling certification for the online sportsbook. A mark of legitimacy!
Read through the terms and conditions
We at GamblingGuy.com know that terms and conditions for any product or service are usually laughed away. Still, you must check them out before tying up your real money with a website. If the terms and conditions seem sketchy – or don’t exist! – then that’s a huge red flag.
An explanation of our processes – what do we look for in legal sports betting sites?
It may not be very clear to work out how we rank and decide on the best legal online sportsbooks, but we assure you that our criteria is both effective and simple. We consider many factors in building up an overall picture of any given operator, such as usability and appearance, security, and other expected factors. We look at how many payment methods are accepted by each operator and whether these are common or not, as well as the legal standing of each operator and what current users report about them.
You can rest assured that we at GamblingGuy.com take advantage of our years of experience in the CO sports betting industry to work out how to rank each operator. If you’re asking, ‘can you bet on Formula 1’ or trying to find the best horse racing odds, we have you covered. The information that we provide to you will be accurate at the time of publishing, as we make every effort to ensure that this is the case so that you have a pleasant and stress-free gambling experience.
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USA Players Welcome
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Gambling problem? Call 1-800-GAMBLER (Available in the US) Call 877-8-HOPENY or text HOPENY (467369) (NY) Call 1-800-327-5050 (MA) 21+ only. Please Gamble Responsibly. Call 1-800-NEXT-STEP (AZ), 1-800-BETS-OFF (IA), 1-800-981-0023 (PR). Rewards are non-withdrawable bonus bets that expire in 7 days. In partnership with Kansas Crossing Casino and Hotel. See BetMGM.com for Terms. US promotional offers not available in DC, Mississippi, New York, Nevada, Ontario, or Puerto Rico.
Whatever the moment. It’s Never Ordinary at bet365. That’s why if you sign up now you will receive $200 in Bonus Bets Win or Lose when you bet $5! Minimum $10 deposit required. Minimum odds -500 of greater. Bonus Bets wager excluded from returns. New customers only. T&CS, time limits and exclusions apply. GAMBLING PROBLEM? CALL OR TEXT 1-800-GAMBLER (AZ/CO/IL/IN/KS/KY/LA/MD/NC/NJ/OH/PA/TN/VA) or 1-800-BETS OFF (IA). 21+ (18+ KY). Must be present in AZ/CO/IA/IL/IN/KS/KY/LA (select parishes)/MD/NC/NJ/OH/PA/TN/VA.
21+ New users only. Must register using eligible promo code. First bet after registration must qualify. Max. Bonus Bet: $1,000. Bonus Bet expires 14 days after receipt. Void where prohibited. See Caesars.com/promos for full terms. Gambling Problem? 1-800-GAMBLER (1-800-426-2537)
Gambling Problem? Call 1-800-GAMBLER or visit RG-help.com. Call 1-888-789-7777 or visit ccpg.org/chat (CT). Hope is here. GamblingHelpLineMA.org or call (800) 327-5050 for 24/7 support (MA). Visit www.mdgamblinghelp.org (MD). Call 1-877-HOPE-NY or text HOPENY (467369) (NY). 21+ (18+ DC, KY and present in select states for KS in affiliation with Kansas Star Casino). First online real money wager only. $5 first deposit required. Bonus issued as nonwithdrawable bonus bets which expire 7 days after receipt. Restrictions apply. See terms at sportsbook.fanduel.com.
New Customers: Bet $5+ and get $300 in Bonus Bets if it wins!
USA Players Welcome
Bet now
21+ and present in most states. (18+ DC/KY/NH/WY). Void in ONT/OR/NH. Eligibility restrictions apply. On behalf of Boot Hill Casino & Resort (KS). Pass-thru of per wager tax may apply in IL. 1 per new customer. Must register new account to receive reward Token. Must select Token BEFORE placing min. $5 bet to receive $300 in Bonus Bets if your bet wins. Min. -500 odds req. Token and Bonus Bets are single-use and non-withdrawable. Token expires 2/1/26. Bonus Bets expire in 7 days (168 hours). Stake removed from payout. Terms: sportsbook.draftkings.com/promos. Ends 1/25/26 at 11:59 PM ET. Sponsored by DK.
Looking for a perfect fit – how to know which CO sportsbook is right for you
Now, it’s all well and good that we can choose some of the best betting sites in Colorado for you from our
US sports betting guide, but you still have the burden of deciding on a good website to go with. Are you looking for the best bonuses, basketball odds, or the best
Formula 1 betting lines? How can you make this decision, and how can you ensure that you make the right decision?
The first thing to remember is that you shouldn’t feel any pressure when betting online, as you can always switch operators if you find out that your current choice isn’t working for you. To make this an easy option for you, we recommend only investing small amounts of money in a new gambling website first. This can let you get used to the website without spending too much of your money – and your time!
As well as this, you can consider the features of the operator before signing up. If you’re more of a night owl, you may be interested in an operator with customer service that is open 24/7 or around the times when you’ll be wagering. If something goes wrong, it’s always best to be able to contact an operator sooner rather than later!
You might be interested in live streams that you can watch while sports betting in Colorado. However, not all operators will have this option, but we will highlight which operators do in our reviews wherever possible.
Being able to bet on sports online has given many gamblers the flexibility that they need in the modern world. It allows you to gamble from the comfort of your home and even on the go. But choosing the right website when there are so many to choose from can be tricky, so we have hopefully made your decision a little easier today. You can always look through our list of Colorado sportsbooks to find your favorite or try them all out to see which you like best.
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USA Players Welcome
Min. Deposit: $5
Copy
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Gambling problem? Call 1-800-GAMBLER (Available in the US) Call 877-8-HOPENY or text HOPENY (467369) (NY) Call 1-800-327-5050 (MA) 21+ only. Please Gamble Responsibly. Call 1-800-NEXT-STEP (AZ), 1-800-BETS-OFF (IA), 1-800-981-0023 (PR). Rewards are non-withdrawable bonus bets that expire in 7 days. In partnership with Kansas Crossing Casino and Hotel. See BetMGM.com for Terms. US promotional offers not available in DC, Mississippi, New York, Nevada, Ontario, or Puerto Rico.
Whatever the moment. It’s Never Ordinary at bet365. That’s why if you sign up now you will receive $200 in Bonus Bets Win or Lose when you bet $5! Minimum $10 deposit required. Minimum odds -500 of greater. Bonus Bets wager excluded from returns. New customers only. T&CS, time limits and exclusions apply. GAMBLING PROBLEM? CALL OR TEXT 1-800-GAMBLER (AZ/CO/IL/IN/KS/KY/LA/MD/NC/NJ/OH/PA/TN/VA) or 1-800-BETS OFF (IA). 21+ (18+ KY). Must be present in AZ/CO/IA/IL/IN/KS/KY/LA (select parishes)/MD/NC/NJ/OH/PA/TN/VA.
21+ New users only. Must register using eligible promo code. First bet after registration must qualify. Max. Bonus Bet: $1,000. Bonus Bet expires 14 days after receipt. Void where prohibited. See Caesars.com/promos for full terms. Gambling Problem? 1-800-GAMBLER (1-800-426-2537)
Gambling Problem? Call 1-800-GAMBLER or visit RG-help.com. Call 1-888-789-7777 or visit ccpg.org/chat (CT). Hope is here. GamblingHelpLineMA.org or call (800) 327-5050 for 24/7 support (MA). Visit www.mdgamblinghelp.org (MD). Call 1-877-HOPE-NY or text HOPENY (467369) (NY). 21+ (18+ DC, KY and present in select states for KS in affiliation with Kansas Star Casino). First online real money wager only. $5 first deposit required. Bonus issued as nonwithdrawable bonus bets which expire 7 days after receipt. Restrictions apply. See terms at sportsbook.fanduel.com.
New Customers: Bet $5+ and get $300 in Bonus Bets if it wins!
USA Players Welcome
Min. Deposit: 5
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21+ and present in most states. (18+ DC/KY/NH/WY). Void in ONT/OR/NH. Eligibility restrictions apply. On behalf of Boot Hill Casino & Resort (KS). Pass-thru of per wager tax may apply in IL. 1 per new customer. Must register new account to receive reward Token. Must select Token BEFORE placing min. $5 bet to receive $300 in Bonus Bets if your bet wins. Min. -500 odds req. Token and Bonus Bets are single-use and non-withdrawable. Token expires 2/1/26. Bonus Bets expire in 7 days (168 hours). Stake removed from payout. Terms: sportsbook.draftkings.com/promos. Ends 1/25/26 at 11:59 PM ET. Sponsored by DK.
Best Colorado Sports Betting FAQ
🎲 Is online sports betting legal in Colorado?
With such a difficult history in the US, the legality of online gambling can sometimes put online gamblers off. It can seem tricky to find out if the online sports betting market is legal in your state, and some states have only legalized sports betting in the past few years. Negotiations in some states are ongoing today, which further complicates matters. But we’ve summed everything on legal online sports betting up for you in our GamblingGuy.com article to make sure that you are in the know.
🎰 How do I gamble online in Colorado?
Gambling online can be a very different experience from gambling in a brick-and-mortar casino, and for those who have never done either, it can be a bit intimidating. Where do you start? Which Colorado sports betting site is safe? And what on earth is a welcome bonus? If you’ve been asking these questions, then our article at GamblingGuy.com may be perfect for you. We explain everything to make sure that you can focus on having fun while gambling instead of stressing out!
🍀 What are the best betting sites Colorado?
The internet can be a wonderful resource, but at some points, it can also become a burden. There are so many sports betting websites that it can be difficult to choose the best and sort the phonies from legitimate sites. One easy way to get all of this sorting done without pulling your hair out is to consult our GamblingGuy.com website – we only feature secure, safe sportsbooks, and we have some of the best CO sportsbooks in our lists.
💰 How do welcome bonuses work for Colorado sports betting?
Welcome bonuses can be difficult to wrap your head around if you’ve never encountered them before. Still, we at GamblingGuy.com would encourage everyone worrying about them and their deadlines to relax. We take you through how to use welcome bonuses at the best CO sportsbooks, looking at different types of welcome bonuses and the common features of terms and conditions that you’ll need to look out for.
Up To $1500 in Bonus Bets Paid Back if your First Bet Does Not Win
T&Cs apply
4.9/5
Gambling problem? Call 1-800-GAMBLER (Available in the US) Call 877-8-HOPENY or text HOPENY (467369) (NY) Call 1-800-327-5050 (MA) 21+ only. Please Gamble Responsibly. Call 1-800-NEXT-STEP (AZ), 1-800-BETS-OFF (IA), 1-800-981-0023 (PR). Rewards are non-withdrawable bonus bets that expire in 7 days. In partnership with Kansas Crossing Casino and Hotel. See BetMGM.com for Terms. US promotional offers not available in DC, Mississippi, New York, Nevada, Ontario, or Puerto Rico.
Whatever the moment. It's Never Ordinary at bet365. That's why if you sign up now you will receive $200 in Bonus Bets Win or Lose when you bet $5! Minimum $10 deposit required. Minimum odds -500 of greater. Bonus Bets wager excluded from returns. New customers only. T&CS, time limits and exclusions apply. GAMBLING PROBLEM? CALL OR TEXT 1-800-GAMBLER (AZ/CO/IL/IN/KS/KY/LA/MD/NC/NJ/OH/PA/TN/VA) or 1-800-BETS OFF (IA). 21+ (18+ KY). Must be present in AZ/CO/IA/IL/IN/KS/KY/LA (select parishes)/MD/NC/NJ/OH/PA/TN/VA.
21+ New users only. Must register using eligible promo code. First bet after registration must qualify. Max. Bonus Bet: $1,000. Bonus Bet expires 14 days after receipt. Void where prohibited. See Caesars.com/promos for full terms. Gambling Problem? 1-800-GAMBLER (1-800-426-2537)
Gambling Problem? Call 1-800-GAMBLER or visit RG-help.com. Call 1-888-789-7777 or visit ccpg.org/chat (CT). Hope is here. GamblingHelpLineMA.org or call (800) 327-5050 for 24/7 support (MA). Visit www.mdgamblinghelp.org (MD). Call 1-877-HOPE-NY or text HOPENY (467369) (NY). 21+ (18+ DC, KY and present in select states for KS in affiliation with Kansas Star Casino). First online real money wager only. $5 first deposit required. Bonus issued as nonwithdrawable bonus bets which expire 7 days after receipt. Restrictions apply. See terms at sportsbook.fanduel.com.
New Customers: Bet $5+ and get $300 in Bonus Bets if it wins!
T&Cs apply
4.5/5
21+ and present in most states. (18+ DC/KY/NH/WY). Void in ONT/OR/NH. Eligibility restrictions apply. On behalf of Boot Hill Casino & Resort (KS). Pass-thru of per wager tax may apply in IL. 1 per new customer. Must register new account to receive reward Token. Must select Token BEFORE placing min. $5 bet to receive $300 in Bonus Bets if your bet wins. Min. -500 odds req. Token and Bonus Bets are single-use and non-withdrawable. Token expires 2/1/26. Bonus Bets expire in 7 days (168 hours). Stake removed from payout. Terms: sportsbook.draftkings.com/promos. Ends 1/25/26 at 11:59 PM ET. Sponsored by DK.
21+ and present in VA. Gambling Problem? Call 1-800-GAMBLER.
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