UFC 328 is set to deliver one of the deepest cards of the year, headlined by the chaos surrounding Khamzat Chimaev and Sean Strickland, with a stacked undercard featuring flyweight gold, heavyweight contenders, and welterweight fireworks in Newark. No OG promo code is required to claim a sign-up bonus worth up to $100 in trading bonuses on the prediction market platform. As of May 9, new users can register at OG.com and start making predictions on UFC 328 and more across one of the best prediction market apps available today.
Up to $100 in Bonuses
OG Promo Code Offer Details: Up to $100 in Bonuses for UFC 328
The OG promo code offer requires no code at all -- simply sign up for a new account and complete a series of milestones to unlock up to $100 in trading bonuses. OG.com is a prediction market platform launched by Crypto.com that lets users buy and sell "yes" or "no" event contracts on sports, politics, culture, finance, and more. These are CFTC-regulated event contracts offered through Crypto.com | Derivatives North America (CDNA), so the platform operates within a regulated framework.
Each contract is priced between $0.01 and $1.00, with higher prices reflecting greater public confidence in that outcome. For UFC 328, you might trade on a contract like "Will Khamzat Chimaev win at UFC 328?" -- if your prediction is correct, that contract settles at $1.00; if it is wrong, it settles at $0.00. You can also sell your contracts before settlement to lock in a gain or limit a loss if the fight-week narrative shifts, as it already has with Jeremy Stephens missing weight by 4 pounds.
Bonus amounts are distributed in increments of $5 to $50 as you complete the following milestones: verify your email, verify your phone number, complete ID verification, make your first deposit, and place your first trade. The offer is available to new users in all U.S. states except New York and Arizona. Users in Illinois, Massachusetts, Maryland, Michigan, New Jersey, Nevada, and Ohio may claim the bonus but cannot apply it to sports trading. You must be physically located in an eligible state to claim the promo, and the offer expires Dec. 31, 2026. Browse and compare other offers at best prediction market promos.
How to Claim Your Bonus and Predict UFC 328 on OG.com
Getting started on OG.com ahead of UFC 328 is straightforward, and no promo code is needed at any step. Just follow these four steps:
- Register: Visit OG.com or download the OG app and click "Sign Up." Enter your email address and verify it, then provide and verify your mobile phone number. Create a passcode for your account and complete the identity verification process by submitting your full name, date of birth, and the last four digits of your Social Security number. You may also be asked to provide a government-issued ID, proof of address, or a selfie in some cases.
- Deposit funds: Make your first deposit using an accepted payment method, such as a debit card, Apple Pay, Google Pay, ACH bank transfer, or wire transfer. ACH bank transfers require a minimum deposit of $1, while debit card deposits require a minimum of $10.
- Start trading: Browse available markets and find UFC 328 contracts under the sports section. Select a "yes" or "no" contract on any outcome that interests you -- such as whether Joshua Van will successfully defend the flyweight title against Tatsuro Taira -- enter your investment amount, and confirm your trade. You can close your position early by selling contracts at the current market price if your outlook changes before the event settles.
- Withdraw earnings: Winnings from correct predictions will appear in your account shortly after settlement. To withdraw, go to your portfolio, click "Withdraw," link your bank account via Plaid, and request between $1 and $100,000 per day or up to $500,000 per month via ACH transfer. Most withdrawals are processed within 24 hours.
For a full breakdown of the platform's features and terms, check out our OG.com Review.
Affiliate Disclosure: Our team of experts has thoroughly researched and handpicked each product that appears on our website. We may receive compensation if you sign up through our links.
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