OG is an emerging prediction markets platform, run by Foris Capital MU Ltd and registered with the CFTC. The prediction market exchange has a good sports scope, covering major US sports, bigger international events, and a smattering of niche events. Beyond that, OG also has trading possibilities on crypto, economics, politics, tech, culture and climate.
Available in all 50 states, though markets and bonuses are subject to state regulations, OG is a fully CFTC regulated prediction market.
What Users Say About OG.com
| Positive Feedback | Negative Feedback |
|---|---|
| I have been using this app for some sports bets and it has exceeded my expectations | This app takes about 3-4 seconds longer to complete trades than any other app |
| So far so good! Received my first withdrawal about 24 hours after requesting it | If you take your time placing these predictions and win, you’re not going receive a payout for over a very long time |
| Plenty of low risk stuff as well as high risk plays | Never get a bonus when I deposited and I was told that no bonus existed |
| I’m looking forward to more general sports feature becoming available | Total bait-and-switch to get you to deposit money, only to deny the bonus on a technicality |
OG Welcome Bonus
New players can sign up to OG.com and get a $100 welcome bonus. As a fully compliant US prediction betting site, OG requires you to verify your email, phone number, and ID to complete your registration, and from there, you can complete the steps to claim your $100 bonus.
OG.com Sign Up Offer: $100 bonus
The bonus can be unlocked by completing milestones on the platform, such as making your first deposit and first trades. The conditions are subject to change, and you have 7 days to do these to claim the entirety of your bonus.
What is OG?
OG is a prediction market that primarily focuses on sports contracts, with options for crypto, economics, culture, and various other real world event markets. The platform is available throughout the US, though there may be select event contracts or bonuses that are not available in certain states. It offers $1 contracts on real world events, which you can buy, and then either sell the contracts early or wait until settlement. Prices are driven by the market. They change in real time to reflect the supply and demand between buyers and sellers.
With a simple fee schedule, high position limits, and an excess of markets to spread out your predictions across, OG is a top choice for any prediction market aficionado who wants a good alternative to the powerhouses, Kalshi, and the crypto-native Polymarket. You can also download native iOS and Android OG.com mobile apps, to build parlays or handle ongoing trades on the go.
How OG Works
OG is a prediction market where you can buy event contracts on real world events, sports games included. The prices of the contracts are determined by the market demand, and reflect the probability of that contract winning. You can buy Yes or No contracts on an event, such as an NFL team to win a game, or a soccer team to win the next Champions League.
Once you buy a contract, you can either hold onto it until the market settles, or you can sell it back – the sports betting equivalent of cashing out. With prices that change in real-time, technology to support parlays, and plenty of bonuses, OG reimagines the prediction market experiences with many sports betting-style features.
Trading Contracts at OG
You can either trade by placing a dollar order or a contract order. Pick an event, click on any market, and then pick whether you want to buy Yes or No contracts. Then, you can buy these in dollars, or enter the number of contracts you want to buy, and pay the sum in dollars. OG uses $1 contracts, meaning you will win $1 for every single winning contract you have bought. The maximum limit on a position is 2,500,000 contracts, which is good and high, supporting high rollers.
What we didn’t really like is that the liquidity or market volume figures were not displayed. There is a chat function where you can talk to other peers, and the most recently bought contract figures are displayed, but not overall market liquidity. For the bigger events, such as a tournament winner or standard game lines it is not such a big problem. But OG has loads of niche markets and props, and without liquidity figures it is impossible to see where you have real opportunities, and where your orders will only be partially filled, or not at all.
Onto the actual trading and ongoing contract management, OG handles this well. You get a Portfolio dashboard, where you can check your open positions, settled positions, order history and cash history. Head to open positions and you have the opportunity to close any contracts early – the prediction market equivalent of cashing out. If you don’t, you can leave these until the settlement, where the contract either wins or loses. All winning contracts pay out $1 each.
Sports Coverage
The main focus is on the top US sports leagues, such as NFL, NBA, MLB, NHL, college basketball, college football, and soccer. OG also provides event contracts on golf, tennis, motorsports like F1, and even on competitive sailing. The depth of markets is impressive, especially for major sports games or events.
We found spread bets, totals, player props, team props, and alternate game lines, as well as a massive scope of futures. OG also has limited parlay trading possibilities, where you can combine events that don’t overlap into one trade slip. You can check the market demand percentages for each contract in real time, just like at other prediction markets.
OG Trading Fee Schedule
Prediction markets are peer to peer financial swaps, where market demand sets the price and the operator does not step in. Though prediction markets do charge commission, by means of a trader’s fee. All prediction market operators have their own unique approach to fees, at Polymarket and Kalshi you get scalable fees, with Polymarket only charging takers’ fees, and Kalshi charging both sides of a trade. At OG, you have to pay fees for opening and closing your positions.
- For $1 contracts:
- Open a position: $0.02
- Closing a position early: $0.02
- Position settles: no fee
This is a much simpler fee schedule, and one that has no basis on the risk-level of your prediction. So you can buy a trade that has a 90% chance of winning, paying out $111.11 on a $100 bet, or you can spend $100 on a 10% trade that can pay out $1,000. The price for buying the contracts (100x $1 contracts) would be charged at $0.02 each for either trade. You would pay an additional $0.02 per contract for cashing out early, but if you leave it to settlement then you won’t run into any more fees.
Prediction market operators that use scalable commission (based on market demand – or risk level), often charge the most on even money bets. The fee curve at those platforms peaks at the 50-50 line. So at OG, this makes those 50-50 trades a lot more valuable, because you are always charged the same amount in fees. It is one of the platform’s key strengths over the competition.
Rewards and Promotions
A big perk to using OG is the regular promotional offers and bonuses. After claiming and using up the welcome bonus, OG showers members with a plethora of rewards, all of which you can find in the Promo Center. This is basically a dashboard for bonuses, and in it you can check any ongoing bonus campaigns, as well as any rewards or boosts that you have on your account.
The campaigns include Daily Boosts and Daily Trade missions, that you can participate in to claim bonuses. The Perfect Picks, another campaign, is a free to play game with leaderboards and tremendous prize pools. The campaigns are not fixed promotions, these are recurring bonuses that can crop up during major tournaments, playoffs, or to celebrate hyped up sports events. Beyond these, OG also supplies refer a friend bonus initiatives and VIP perks, the latter of which include exclusive promotions, personal managers, higher deposit limits and priority support.
The two main bonuses you can claim are rewards and boosts. Rewards are just like a bonus bet at conventional sportsbooks, where you get a bonus voucher that you can use to buy up contracts. They only apply to contracts that have 80% or lower probability of winning, and you can only use 1 per trade.
Boosts, on the other hand, amplify your potential profits, and you can apply these to real money funded contracts. The boosts also only apply to contracts with an <80% chance of winning, and they only boost your potential profits, subtracting the costs and return of your stake.
Banking
You can make deposits as soon as you sign up at OG. The platform accepts fiat and crypto deposits, the latter of which are powered by Crypto.com. If you want to deposit USD, you can use bank cards, Venmo, PayPal, or bank transfers. The minimum deposit is $10, and take note that while OG states that it doesn’t charge fees, you may be charged by the payment processor.
| Deposit Methods | Processing Time | Fee |
| VISA | Instant | Varies |
| Mastercard | Instant | Varies |
| Apple Pay | Instant | Varies |
| Google Pay | Instant | Varies |
| PayPal | Instant | Varies |
| Venmo | Instant | Varies |
| Bank Wire Transfer | Instant | Varies |
| Crypto | Instant | Varies |
| Withdrawal Methods | Processing Time | Fee |
| Debit cards | Up to 2-3 days | Varies |
| ACH Transfer | Up to 7 days | Varies |
| RTP Bank Transfer | Up to 7 days | 1.5% |
| Crypto | Up to 1-2 days | Varies |
Withdrawals can be requested from as little as $1 from selected payment methods, but bear in mind that you may get charged.
Customer Support
OG has a Help Center with all the basic information you need before signing up, as well as a few learning guides to help you navigate your way around the trade orders, promo center, and other areas of the site. It provides live chat and email support to players, and you can also reach out to the support team via the socials on X, Meta, Discord, Instagram, or LinkedIn.
Through its social features, clean interface and always-ready support team, OG is highly focused on player needs. It also has options for people who have VIP status elsewhere to request VIP status at OG.
Related Reviews
While OG has markets for real world events outside sports, the most popular US sports are definitely the focus here. So naturally, it can be compared to Kalshi, which also has parlay style trades and deep sports related markets.
A prediction market with comparable rewards is Limitless Exchange, which also has a CLOB model, with an idea to expand into user-based market creation in the future. For more all-round markets we would also suggest you look at Robinhood, or the crypto-native Polymarket.
Our Verdict
OG is a lot younger than the competition. Kalshi and Polymarket have been around for years, but OG just launched in February, 2026. So the market volume and community is not as big, which can result in limited liquidity or even unfilled orders for selected markets. The biggest con is the lack of market liquidity figures, which would be useful to determine how many contracts you can buy for any event.
But there is a lot to like on OG. It has a sportsbook-esque variety of bonuses, with regular boost and reward campaigns, and excellent free games that crop up seasonally. The platform also support parlay-style betting, which is something of a rarity at prediction markets.
The user feedback suggests that bonuses are either difficult to claim, or are liable to change (and quickly. We didn’t experience this, but the bonus expiry and claiming methods can leave you with tight windows to redeem your rewards. However, all in all this is a very competent prediction market, with apps for iOS and Android users, and a betting-friendly UI.
(8 votes, average: 3.50 out of 5)
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