SI Sportsbook CO
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Risk-Free Bet up to $7500
Valid October 2021
  • Tons of available bets
  • Gigantic welcome offer
  • Backed by Sports Illustrated
  • Available first in Colorado

SI Sportsbook Colorado Promo Code & Review 2021

The company responsible for one of the most storied print media magazines in the world has arrived in Colorado to become part of the legal online sports betting realm. Sports Illustrated Sportsbook, or more commonly SI Sportsbook, is now live in the Centennial State and is accepting legal, real money online wagers on sporting events of all types.

SI Sportsbook has a partnership with reputable software provider 888 Holdings to aid with their betting efforts. 888 and SI together will be a powerful combination. Launching in September 2021, this globally-known brand name is ready to become a meaningful online sports betting service in Colorado.

Following is our full COBets review for SI Sportsbook Colorado. Below you will find a complete breakdown of our exclusive welcome offer (be sure to use our links to claim it!), a rundown of the services SI Sportsbook offers, instructions on how to deposit and withdraw from your verified account, and other particulars that the brand now offers for Colorado bettors.

SI Sportsbook risk-free Bet up to $7500

If you sign up for an SI Sportsbook Colorado account using our links here at COBets, you will be eligible for our exclusive offer of an initial “risk-free” wager up to $7,500. That’s quite an offer for legal sports bettors in Colorado. If you are sizing up a big bet, you might as well make it risk-free.

SI Sportsbook CO Promo CodeNo code needed - just click this link
New Player BonusRisk-Free Bet up to $7,500
Code ValidOctober 2021
Colorado PartnerColorado Grande Casino

Here’s how our exclusive COBets welcome offer works:

  1. Click on our COBets links to sign-up for a SI Sportsbook account.
  2. Successfully make your first real money deposit onto SI Sportsbook CO.
  3. Notably, first real money deposits made using Skrill, NETeller, Moneybookers, or a Paysafecard do not qualify for this promotion.
  4. Make sure you are a “resident” of CO and physically located in Colorado when placing your first wager. Only “residents” of Colorado are eligible for this promotion, so it will not be available for visitors to the state, even if they satisfy all other prerequisites. This is a departure for most online sports betting bonuses.
  5. Make sure your first bet is made at odds of at least -200, because wagers that are shorter than that will not qualify.
  6. If your first wager (ranging from $10 to $7,500) is settled as a winner, then the winning payout will proceed as normal, and no promotional funds will be awarded
  7. If your first wager is settled as a loser (again, ranging from $10 to $7,500), then the new customer will receive SI Sportsbook Colorado “Free Bet” tokens that are equal to the amount of the losing wager.

Bonus t&c to watch

New customers must be at least twenty-one (21) years of age, sign up with a verifiable Colorado address through our links, and place their first real money wager on SI Sportsbook CO while being physically located within the state borders of Colorado.

If the very first wager is $500 or less, and settles as a “loser,” then that customer will receive a “Free Bet” token equal to the amount of the wager. Alternatively, if the very first wager was made for over $500 (up to $7,500), then the new customer will receive “Free Bet” tokens in $500 increments that cover the total bet as well as the remainder. For example: if you signed up through COBets and your very first wager was made for $3,300 and it loses, then you will receive six (6) “Free Bet” tokens worth $500 each, plus another $300 “Free Bet” token to cover the total amount of the very first real money wager.

All “Free Bet” tokens typically take up to seventy-two (72) hours to be credited to a customer’s account. This promotion can’t be combined with any other SI Sportsbook Colorado promotion

Using your free bet

Keep in mind that “Free Bet” tokens must be used in full. They can’t be divvied up into smaller promotional bets. Free bets need be used within a period of seven (7) days upon being received by the customer, or they are lost forever. There are no “minimum odds” requirements when utilizing the free tokens. Place them on whatever bets you like.

Important: If a wager placed with a free bet token is settled as a “winner,” the customer will only receive the payout amount credited to their account. In other words, the free bet token amount is not returned as a part of a winning wager. Winnings received from SI Sportsbook free bets can be cashed out/withdrawn once they arrive in the customer’s SI Sportsbook Colorado account.

SI Sportsbook partners with Colorado Grande Casino in Cripple Creek

Per Colorado law, all online sportsbooks are required to establish licensing partnerships. The Sports Illustrated Sportsbook CO has a land-based casino agreement with the Colorado Casino Grande & Hotel, located in Cripple Creek in central CO… just a few miles west of Colorado Springs. Situated at 300 East Bennett Avenue in Cripple Creek, the Colorado Casino Grande offers a total of seven gaming rooms on the second floor of the building to provide land-based customers with a place to both “play and stay.”

How to sign up with SI Sportsbook CO

Click through any of the links available on this page to get started on SI Sportsbook in Colorado. This process will require new customers to enter their full name, physical address, telephone number, email, along with the last four digits of their U.S. Social Security Number (SSN).

Once this has been done, new customers are encouraged to make their first real money deposit using SI Sportsbook Colorado’s preferred deposit methods. This will ensure customers are eligible for the initial risk-free wager up to $7,500 offer. Simply click on the “Cashier” prompt within the SI Sportsbook CO client, and follow the instructions on depositing. See the “Deposits & Withdrawals” section below for more information on preferred deposit methods onto SI Sportsbook CO.

After your first real money deposit has been made and approved, the funds will be reflected in your SI Sportsbook Colorado account, and you will be ready to place your first real money wager. Keep in mind you have to be physically located within the borders of Colorado in order to place a real money wager on SI Sportsbook CO. Real money wagers attempted by members who are not in CO at the time of placing the bet will not be accepted (geolocation is verified separately through GeoComply).

SI Sportsbook betting markets

You won’t find a state that offers more betting options than Colorado. The available sports for real money wagers offered by SI Sportsbook are in line with the legal, statewide U.S. betting market. Available sports include (but are not limited to):

Football – Baseball – Basketball – Golf – Tennis – Rugby – Billiards – Boxing – Darts – Cricket – Handball – Motorsports – Soccer – Table Tennis – esports – Hockey – Mixed Martial Arts – Volleyball – Cycling – Curling – Netball – Swimming – Surfing – Track & Field – Winter Sports – Badminton

Types of wagers with SI Sportsbook

You can bet a lot of different ways with SI:

Moneyline – Straight Bets – Point Spreads – Totals (Over/Under) – Parlays – Teasers – Props – Futures – Live (In-Game Betting) – Correct Score – Odd/Even – Head-To-Head – System Bets – Period Betting – Half Betting

Software review: SI Sportsbook

The SI Sportsbook interface for desktop users in Colorado is simple, sleek, and easy to navigate. 

As is typical with legal, statewide U.S. sportsbooks, individual betting markets are listed within the left-hand margin, with main bet types positioned in the center of the screen while the customer’s personalized slip is located on the right-hand side of the client.

A closer look at the “Football” market module shows popular bets along with a wide variety of options (for most sports) as the customer scrolls down. You can access the desktop version of the sportsbook from any traditional web browser.

SI Sportsbook mobile app review and download instructions

Downloading the SI Sportsbook Colorado app can be performed by clicking on the corresponding icons on the sports betting site’s homepage. You’ll see them towards the bottom. For Android devices, you will be taken to the Google Play storefront where you can download the app and install it on your Android. For iOS devices (iPhone, iPad, etc.) the operating system must be version 12.2 or higher and you will need to download and install from the Apple App Store.

Although the app is listed as a legal download for 17+ (Apple App Store) and 18+ (Google Play storefront), customers MUST be at least twenty-one (21) years of age in order to place real money wagers and physically located in Colorado. Otherwise, the real money bets will not go through.

There are a plenty of advantages when using SI Sportsbook Colorado from your mobile device. While all of the same features that are available on the desktop version of the site are present on mobile, it has the obvious added benefit of being portable. You can take it with you wherever you go. You can bet from the bar, the stadium, or while sitting at home.

The interface for the SI Sportsbook CO app is very clean, easy to read, and intuitive in a way that allows customers to quickly touch, tap and slide to their preferred types of bets and/or betting markets. You can do it all while using the SI Sportsbook mobile app.


A wide range of deposit and withdrawal methods are available when patronizing SI Sportsbook in Colorado. To make a deposit (or withdrawal), simply open the main lobby, login to your verified SI Sportsbook CO account and click on the “Cashier” prompt, then “Deposit.” You will be presented with a number of preferred deposit methods, but can click on the “More Deposit Methods” button to see other ways to perform a deposit or make a withdrawal.

Deposit and withdrawals

Following is a list of “Accepted Deposit Methods” that you can use with Sports Illustrated. The minimum deposit amount is $10 for all deposits, regardless of method.

Bank Transfer/ACH – Individuals can use this convenient method to make a deposit to their legal Colorado sportsbook hosted by Sports Illustrated. There is no minimum requirement for withdrawals. Deposits can happen instantly. Note that this option will require you to link your bank account to SI Sportsbook Colorado in order to perform transfers. Allow up to 3 business days for withdrawals. Use bank transfers for both deposits and withdrawals.

SI Sportsbook Colorado Play+ Card – Play+ cards have become one of the most popular ways for legal online sports betting customers in Colorado and throughout the country to fund their accounts. Once you sign up for an SI Sportsbook Play+ card, you will receive a physical card in the mail (to the address you used to register when signing up). Although customers might already have a Play+ card tied to another service, they will need to apply separately for the SI Sportsbook card. Once received, the card can be used for both deposits and withdrawals, while also being accepted at ATMs worldwide that accept the Discover card. Allow up to 4 days for withdrawals. Deposits + withdrawals are both available here.

Major Credit Cards (Visa/Mastercard/Discover) – SI Sportsbook Colorado customers can fund their accounts using major credit cards that are part of the Visa, Mastercard, or Discover networks. This is an easy method for quick depositing (unless the financial institution that issued the card restricts transactions with legal online sports betting services). However, there is no “charge back” option when using a major credit card to fund your SI Sportsbook account in Colorado, meaning that this method is for deposits only.

PayNearMe – Another quick and convenient deposit method at SI Sportsbook CO is to select the “PayNearMe” option from your personalized cashier module while logged in. You will be provided with a unique barcode, which you can then take to any participating retailer (typically CVS, Walgreens, or 7-Eleven stores) to scan the code on-site and physically make the deposit. The funds will then generally be reflected in your SI Sportsbook account in 15 minutes or less upon receipt at a participating land-based retailer. This payment method is for deposits only. No withdrawals.

Online Banking (Bill Pay) – If your financial institution has a “Bill Pay” option, you can use that to quickly and conveniently fund your SI Sportsbook Colorado account. Simply link the legal online sports betting service to your bank’s “Bill Pay” mechanism, and deposits will be made promptly, as directed by the customer. You’ll need to have your bank details on hand, though. Deposits only – no withdrawals.

Promotions and special offers

Aside from our exclusive COBets welcome offer of one risk-free wager up to $7,500, customers can also take advantage of other great promotions. The following are examples of offers the book has made available:

Free bets: Once you make a real money deposit using one of SI Sportsbook Colorado’s preferred deposit methods, then place a real money wager of at least $10, you will be eligible for one $50 “Free Bet” token (which must be used within seven days upon receipt). The Free Bet token can not be withdrawn until it is used.

Perfect 10 out of 10: Customers can win up to $10,000 when participating in SI Sportsbook CO’s “Perfect Ten Out Of Ten” promo. Play at any time, and receive $1 in Free Bet tokens for every question (or pick) you get correct, plus an entry into a drawing in which you could win up to $10,000. This contest occurs weekly and is only available to SI Sportsbook CO customers.

SI customer service

There are a number of ways to get in touch with Customer Service personnel if you are having issues depositing or have a question that is not covered in the company’s online FAQ section. The primary support options are:

Online FAQs: SI Sportsbook Colorado has a complete section dedicated to Frequently Asked Questions that customers may have, including complete rules for betting in all markets, types of wagers, and terms & conditions that are linked with deposits and withdrawals. Simply scroll or slide down to the bottom of SI Sportsbook’s homepage to find the category that pertains to the questions you have.

Contact Us Page: The SI Sportsbook Colorado “Contact Us” page contains icons that represent categories of Frequently Asked Questions, and can be viewed in full with one convenient click or tap. There is also an email support form that you can refine by selecting a category.

We’d like to see Live Chat support, but it is not available as of yet.

SI Sportsbook CO Verdict

  • New Player Bonus
  • Pricing and Lines
  • Game Selection
  • Software
  • Banking

After partnering with the Colorado Grande Casino and esteemed iGaming giant 888, Sports Illustrated Sportsbook is ready to go. Their welcome offer is massive, there are plenty of ways to deposit and withdraw, and the general layout works. SI Sportsbook shows promise that it could quickly become one of the biggest bookmakers in Colorado.


David Huber is a seasoned writer with over 15 years of experience covering the online poker, online casino, and online sports betting sectors. He has performed various roles within the iGaming industry since 2006 including: reporter, editor, virtual assistant, podcast host, and lead forum moderator.