No OG promo code is needed to get started with one of the best prediction market apps available right now. New users who sign up to OG.com can earn a $10 reward by completing a qualifying trade, and Thursday's MLB and WNBA slate is a great place to start.
This offer is available as of July 30, so there is no better time to jump in.
Trade $10 & Get $10
OG Promo Code Offer: Trade $10, Get $10 on MLB and WNBA Action
The OG promo code offer is straightforward: trade $10 and earn a $10 reward. No code is required to activate the promotion. You simply need to register, verify your identity, and settle at least one qualifying trade worth $10 or more within seven days of your KYC approval.
Here are the key terms to keep in mind before you trade:
- Your account must be verified before the seven-day clock begins.
- Each qualifying trade must be worth at least $10.
- Only trades with implied probabilities below 80% count toward the promotion.
- Trades placed using reward funds do not qualify.
- Only settled trades are counted, not open positions.
Thursday's slate gives you a strong starting point. You could place your first qualifying trade on the Mariners-Dodgers matchup, which carries genuine playoff-calibre intrigue and is unlikely to feature a market probability above the 80% threshold. If your prediction on that game is correct, you will collect your payout once the market settles. If the trade does not go your way, your qualifying trade still counts toward unlocking the $10 reward, provided all other conditions are met.
The WNBA card also offers options, particularly the New York Liberty visiting the Las Vegas Aces, which is the sharpest talent matchup of the night. Either game works as your first trade to get the promotion moving.
For a full breakdown of what is available across platforms, check out the best prediction market promos compared in one place.

How to Claim Your $10 Reward for Thursday's MLB and WNBA Slate
Getting started on OG.com takes just a few minutes. Follow these steps to register, deposit, and place your first qualifying trade on Thursday's games.
- 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 to secure your account.
- Verify your identity: Complete the KYC 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.
- Deposit funds: Add money to your account using a debit card, Apple Pay, Google Pay, ACH bank transfer, or wire transfer. Debit card deposits require a minimum of $10, while ACH transfers require just $1.
- Place your qualifying trade: Browse the available markets and select a game from Thursday's MLB or WNBA slate. Choose your "Yes" or "No" outcome, enter at least $10, and confirm your trade. Make sure the market probability is below 80% for the trade to count.
- Wait for settlement: Once your trade settles, your eligibility for the $10 reward will be confirmed. If your prediction is correct, your payout will appear in your account shortly after settlement.
- Withdraw your earnings: Head to your portfolio and click "Withdraw." Link your bank account through Plaid and request a transfer of at least $1. Most withdrawals are processed within 24 hours.
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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