Onyx Odds Review 2026: Bonus, Sports Markets & Redemptions

Onyx Odds is a sleek sweepstakes sportsbook that also runs a casino section, so you get social sports predictions and casino games in one place. It uses two virtual currencies: Onyx Coins for play, and Onyx Cash, the promotional currency you win and redeem for prizes. It stands out for competitive odds, live betting, table games, and one of the lowest redemption minimums in the space.

Bonuses & Free Play

New players get a stack of free Onyx Coins on signup to start making picks, with no purchase needed. The main welcome offer is purchase-based: spend $10 and get 50 free picks. Note that signup itself doesn't include free Onyx Cash. You earn redeemable Cash by winning picks or via free-play and mail-in offers. There's also a bespoke VIP/loyalty program and promos shared through Onyx's social channels.

Onyx has also been running a lot of strong sales lately, so keep an eye on the store for discounted Onyx Coin packs with bonus Onyx Cash attached.

Where Onyx really stands out, though, is the AMOE. Its mail-in bonus is one of the most generous in the entire space: 5 Onyx Cash per approved envelope, and you can send up to 100 per month. That's up to 500 Onyx Cash (roughly $500) in free, redeemable Cash every month if you commit to it. If you're going to write mail-in entries anywhere, Onyx belongs at the top of your list; see our AMOE guide for how to write entries so they don't get rejected.

Sports & Odds

Onyx covers all the major markets. NFL, NBA, NCAAF, NCAAB, NHL, UFC, and tennis. With roughly five to ten markets per sport and a live-betting feature for in-play predictions. Odds are competitive for a social book. The site itself is a highlight: a clean black-and-violet design, fast loading, and fully mobile-friendly. There's no app, but the mobile site does everything the desktop does.

Casino Games

Beyond the sportsbook, Onyx has a casino section with table games. Blackjack, roulette, and baccarat. Plus a selection of slots. If you want to wash Onyx Cash toward a redemption, the table games are your best bet: blackjack and baccarat carry a low house edge, so they clear playthrough with minimal loss. It is not a huge casino library, but having real tables alongside the sports markets is a genuine plus.

Locking In Guaranteed Profit

Here's the angle that makes Onyx especially interesting: because you're getting free picks and a big stack of AMOE Onyx Cash for nothing, you can hedge your Onyx bets against bonus bets and free plays on other DFS and social sportsbook sites. The free bonus picks have to be used on a sports pick. You can't just cash them straight out. But that's exactly what makes the hedge easy: since you have to place a pick anyway, just bet the other side on another book using its bonus bets, and you lock in a profit no matter which way the game goes. You're effectively playing with house money on both ends. It takes some setup and tracking, but pairing Onyx's free Cash with free-bet promos elsewhere is about as close to guaranteed value as sports betting gets.

Redemptions

Onyx Cash redeems for prizes through the Cashier page once you've built up the minimum. Just 20 Onyx Cash, one of the lowest floors in the space and well below the usual $50-$100. You can't buy Onyx Cash directly (per sweepstakes rules); you earn it by winning picks or through bonuses. Purchases of Onyx Coins support cards, Apple Pay, Skrill, and bank transfer, and KYC verification applies before redemption.

State Availability

Onyx Odds is available to players 18+ in more than 40 US states. It is not available in California, Idaho, Michigan, Montana, Nevada, New York, or Washington.

Trust & Support

Onyx Odds operates under US sweepstakes law (no license required for the model), employs standard security protocols, and publishes clear terms, a privacy policy, and responsible-gaming tools. It's a newer, smaller operator, and support is the weak point. Primarily email (contact@onyxodds.com) and a phone line, with no live chat yet and no dedicated promotions hub. Start small and confirm your first redemption clears smoothly.