No OG promo code is required to get started on one of the best prediction market apps available right now. As of June 28, new users can sign up at OG.com and unlock up to $100 in trading bonuses by reaching cumulative trade and settle volume milestones.
Wimbledon is the perfect place to start, with Jannik Sinner's title defence, Novak Djokovic's history chase, and Serena Williams' stunning return all generating major prediction market interest.
Trade & Get Up to $100
How the OG Promo Code Unlocks Up to $100 for Wimbledon
The OG promo code offer requires no code at sign-up, making it one of the more straightforward welcome bonuses available. New users earn trading bonuses by reaching cumulative trade and settle volume thresholds, meaning Wimbledon is your starting point rather than your only opportunity to collect. Your first qualifying trade on a Wimbledon market, such as whether Sinner will defend his title or whether Serena Williams will advance past the first round, gets the process going.
Here is how the bonus tiers break down:
- Trade and settle $10 to receive a $10 bonus
- Trade and settle $100 to receive an additional $15 bonus
- Trade and settle $250 to receive an additional $25 bonus
- Trade and settle $500 to receive an additional $50 bonus
If your Wimbledon trade settles correctly, your payout lands in your account shortly after the market closes. If your trade does not go your way, you can also sell your contracts early at the current market price to manage your position before settlement. The offer is available to new users in all U.S. states except New York and Arizona, and 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 a legal OG state to participate, and the offer expires Dec. 31, 2026.
For a full side-by-side look at what is available, check out the best prediction market promos currently on offer.

How to Claim Your Bonus and Start Trading Wimbledon
Getting started on OG.com takes just a few minutes. Follow these steps to register, deposit, and place your first Wimbledon trade to begin unlocking your bonus.
- Register: Visit OG.com or download the OG app and click "Sign Up." Enter your email address, verify it, and provide your mobile phone number. Create a passcode and complete identity verification by submitting your full name, date of birth, and the last four digits of your Social Security number. A government-issued ID or proof of address may also be required.
- Deposit funds: Add money to your account using a debit card, Apple Pay, Google Pay, ACH bank transfer, or wire transfer. ACH transfers require a minimum deposit of $1, while debit cards require a minimum of $10.
- Start trading: Navigate to the Wimbledon markets, select a "yes" or "no" contract on the outcome of your choice, enter your trade amount, and confirm. This first trade starts your progress toward the cumulative volume milestones.
- Withdraw earnings: Once a trade settles in your favor, your winnings appear in your account. Head to your portfolio, click "Withdraw," link your bank account via Plaid, and request a transfer. Most withdrawals are processed within 24 hours, with a daily maximum of $100,000.
For a deeper look at the platform before you sign up, read the full 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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