
My latest sweepstakes sports betting site to review is Onyx Odds sportsbook. Right away, I appreciated how easy it is to browse, with neatly categorized sports that include options like NFL, tennis, UFC, UCL, and NCAAF.
Upon signing up, I received 1,000 Onyx Coins, no promo code required. I also noticed that existing bettors can take advantage of ongoing promotions such as a referral bonus and a mail-in request bonus. In this review, I’ll walk you through what to expect from this sweepstakes sportsbook, covering usability, bonuses, mobile experience, customer support, security, and more.
| Payment Provider | Deposit min/max | Withdrawal min/max | Withdrawal time | Safety | Approval rate |
|---|---|---|---|---|---|
![]() |
at least 10$ | at least 20$ | 1 - 3 days | very high | High |
![]() |
at least 10$ | at least 20$ | 1 - 3 days | high | |
![]() |
at least 10$ | at least 20$ | 1 - 3 days | high | |
![]() |
at least 10$ | high | |||
![]() |
at least 10$ | at least 20$ | 1 - 3 days | high | |
![]() |
at least 10$ | high | |||
![]() |
at least 10$ | high | |||
![]() |
at least 10$ | at least 20$ | 3 - 10 days | high |
Onyx Odds provides a variety of promotions for both new and existing bettors. While it’s a newer sportsbook and the offers are somewhat limited, they still provide an engaging sports betting experience. Here’s what you can expect:
Onyx Odds gives new players a no-purchase welcome bonus of 1,000 Onyx Coins. No Onyx Odds promo code is required. Once I registered, the bonus was instantly credited to my account. I did notice, though, that the offer doesn’t include any Onyx Cash, which can make betting feel a bit limited at first. Still, it makes exploring the site easy for new bettors.
Like most sweepstakes sportsbooks, Onyx Odds also offers a first purchase bonus on optional Onyx Coin packs. I received 100 Free Picks when I spent $10 on a non-mandatory Onyx Coins pack. It’s important to note that this offer is completely optional, as Onyx Odds doesn’t require an initial Onyx Coins pack purchase to start betting. I also found a new welcome offer for new users using an affiliate link.
New users will get 200 in Bonus Picks when they spend $10 with an affiliate signup link. These bonus picks are spread across 4 days.
Onyx Odds rewards players for inviting friends to the site. You can get 25 Free Picks when a referred friend signs up through your unique referral link and makes an optional Onyx Coins pack purchase. What I liked is that your invited friend also receives 100 Free Picks.
Onyx Odds lets players collect Onyx Cash through a mail-in request after obtaining a Postal Request Code. To get this code, go to your account and click on “Postal Request Code” at the bottom of the Policies section. Then, follow the instructions on the site’s sweepstakes rules page to submit your request. Successfully doing so awards 5 Onyx Cash, which is higher than what most sweepstakes sportsbooks offer. Note that the maximum number of mail-in requests per sweepstakes entry period is 100.
On the Onyx Odds landing page, I noticed that loyal bettors are promised access to a VIP program by wagering consistently and stacking points. However, after registering, I couldn’t find this offer anywhere on the site. My guess is that it may be strictly by invitation. If you’re interested, you can always reach out to customer support to ask how it works and how to qualify. Either way, this shows that Onyx Odds has something in the pipeline for its loyal bettors.
For a full review of Onyx Odds bonuses, click the link here to see all the details.
Browsing Onyx Odds is straightforward, which was the first thing that registered with me. The site’s sports and other key features are arranged horizontally at the top for easy access, including All, Live, Futures, NFL, NCAAF, MLB, Tennis (M), and Tennis (F). Just below, you’ll find banners showcasing ongoing promotions. Switching between Onyx Coins and Onyx Cash modes is simple, too, as the toggle is prominently located at the top of the page.
Clicking on any sport, such as the NFL, displays the available bet types, including spread, total, and moneyline. Beneath these, the “More Wagers” option reveals additional betting markets. Everything is clearly laid out and easily accessible.
At the bottom of the site, a static menu provides quick access to Home, My Bets, and Account. The My Bets section shows all your wagers and allows you to filter by Won, Lost, Futures, and more. In the Account section, you can make optional Onyx Coins pack purchases, change your password, and access important resources such as the terms of use, sweepstakes rules, and responsible gaming tools.
Visually, Onyx Odds features a black background with purple accents scattered across the site. This combination is easy on the eyes and gives the site a modern, sleek appearance. I totally liked it.
Onyx Odds doesn’t have a dedicated mobile app on platforms like the Google Play Store for Android or the Apple App Store for iOS. Nonetheless, when I added the site to my home screen, since it’s mobile-optimized, I realized I could effectively install it as an app. This gave me convenient on-the-go access to the site. Once installed, the mobile experience mirrors the desktop site perfectly, with all features in the same positions, the main difference being the convenience of mobile access.
Since Onyx Odds is still a relatively new sportsbook, there may be a dedicated mobile app upgrade in the near future.
Onyx Odds, like other USA sweepstakes casinos and sportsbooks, uses two types of virtual currencies: Onyx Coins and Onyx Cash. Onyx Coins let you place predictions in standard mode for fun. Onyx Cash allows you to bet in promotional mode, accumulate more Onyx Cash, and redeem for real prizes once you meet the site requirements, including playing through at least 20 Onyx Cash once.
While Onyx Coins packs can be purchased optionally, Onyx Cash cannot be bought. However, it may come as a bonus with your non-mandatory Onyx Coins bundle. Optional Onyx Coins bundle purchases can be made via Visa, Mastercard, Discover, American Express, ACH, and Trustly. To redeem eligible Onyx Cash for real prizes, ACH is available.





During my review, I found that Onyx Odds currently provides email support only. After sending a request, I was informed within 30 minutes that my query was being reviewed, and I received a detailed response about three hours later.
I also noticed that the site lacks a comprehensive FAQ page for common issues such as account verification, bonuses, and optional Onyx Coins pack purchases. While this was a minor letdown, I understand the site is still developing, and I trust improvements will come soon.
Overall, my experience with Onyx Odds customer support was reliable, though somewhat limited.
| Customer Service | ![]() |
|---|---|
| Available Languages: | English |
| Email: | contact@onyxodds.com |
| Telephone: | +1 334-471-4060 |
Onyx Odds doesn’t require a license to operate like traditional online sportsbooks. However, it follows US sweepstakes law and doesn’t require an initial Onyx Coins pack purchase to play. The site is available to bettors 18+ residing outside of Washington, Idaho, Michigan, Montana, and Nevada.
Prioritizing bettor safety, Onyx Odds provides responsible social gaming tools. For example, you can set wager limits to control the amount of Onyx Coins you bet per day or over a rolling 24-hour period. I could also place limits on my optional Onyx Coins bundle purchase. Additionally, you can set a maximum daily loss limit for Onyx Cash. These limits are easy to configure, and Onyx Odds customer support is available to help. You can even self-exclude or close your account if needed.
Onyx Odds is transparent about how it collects and uses bettor information. The site also follows industry standards to protect your data, ensuring you can explore the site safely. With these features in place, Onyx Odds is safe for US sweepstakes bettors.
Onyx Odds offers a variety of sports, over 10 in total, including NFL, NCAAF, Tennis, and WNBA. I also noticed it provides competitive odds and a live betting option. Here’s what I found in detail:
Onyx Odds covers popular sports such as NFL, NCAAF, MLB, WNBA, Tennis (M), Tennis (F), TT Elite, TT Pro, NHL, and UFC.
When I explored NCAAF, the main bet types were spread, total, and moneyline. But I also found deeper markets like Anytime Touchdown Scorer, Player Touchdowns, Player Passing Yards, and Player Rushing Yards.
Onyx Odds also offers top soccer leagues, including the EPL, La Liga, UCL, Serie A, Bundesliga, WC Qualifiers, and MLS. For example, when I checked out the Bundesliga, I saw markets like Home, Draw, and Away, along with Draw No Bet, 1st Half Moneyline, Team Total, and Both Teams to Score.
The odds at Onyx Odds aren’t just for show; they’re competitive. While reviewing an NFL game between the KC Chiefs and LA Chargers, the moneyline odds were -166 for the KC Chiefs and +140 for the LA Chargers. That was better than what I found on some other sites.
Onyx Odds also supports live betting, letting you place predictions while the action is happening. During my review, I explored a live tennis match between Alina Charaeva and Maria Timofeeva. Placing bets mid-match was smooth, and the experience was seamless.
Onyx Odds may still be new, but I can’t deny I had a great time on the site, even as it’s still building up. Along the way, I found a few tips that really helped me maximize my experience. Here they are:
Take time to go through Onyx Odds terms of use and its sweepstakes rules. This will ensure you interact with the site as expected. For example, I discovered that if my account stayed inactive for 60 days or more, it could be closed. Knowing this helped me stay on top of logging in regularly.
If you’re planning to redeem your Onyx Cash for real prizes, don’t skip verification. Complete your KYC check by submitting proof of a valid government-issued photo ID, proof of address, and validation of your SSN. Doing this early makes future prize redemptions smooth once you meet the site’s requirements.
Onyx Odds shows it prioritizes bettor well-being by offering responsible gaming tools. Before exploring, set a wager limits, loss limits, and optional Onyx Coins purchase limits. This way, your sweepstakes betting stays fun, balanced, and under control.
Reviewing Onyx Odds from start to finish was a solid experience. One thing stood out; this site is competitive, even though it’s still new. I received a welcome bonus of 1,000 Onyx Coins, no promo code needed. I also claimed a first purchase bonus that rewarded me with 100 in Free Picks after making a $10 optional Onyx Coins pack purchase. Active bettors can also benefit from ongoing promotions like a referral bonus, which gives you 25 Free Picks when your friend signs up through your unique link and makes an optional Onyx Coins pack purchase. What’s nice is that the invited friend also gets 100 Free Picks.
Onyx Odds also highlights a VIP program on its page before signup. While it’s not fully live yet, it promises rewards based on point accumulation, which could be interesting once rolled out. When it comes to support, Onyx Odds currently offers email support only. From my review, responses were quicker than expected, under four hours, and quite detailed. Still, the lack of a live chat option makes it a bit limited compared to other sweepstakes sportsbooks. Since it adheres to US sweepstakes law, Onyx Odds is a safe option for sweepstakes betting.
Click the banners on this page to visit Onyx Odds and start your sweepstakes betting today.
Onyx Odds offers 1,000 Onyx Coins as a welcome bonus. No promo code is needed, just sign up, and the bonus will be instantly credited to your account.
Onyx Odds is available to US players aged 18+ who reside outside of Washington, Idaho, Michigan, Montana, or Nevada.
Yes. Onyx Odds offers regular promotions like a referral bonus, 25 Free Picks when a referred friend signs up through your link and makes an optional Onyx Coins pack purchase. The invited friend also gets 100 Free Picks. You can also claim 5 Onyx Cash by sending an eligible mail-in request.
Currently, Onyx Odds only provides email support. Responses arrive within four hours and are helpful, but the absence of live chat makes support limited.
Onyx Odds offers over 10 sports, including NFL, NCAAF, MLB, Tennis, and WNBA. Each sport features various bet types like spreads, totals, and moneylines.