Dexsport, Polymarket and Kalshi: How Crypto Prediction Platforms Compare in 2026

Kalshi and Polymarket together handled more than $45 billion in prediction market volume in August 2026. Dexsport entered the category in September with a very different design: a crypto sportsbook and casino that now sells Yes and No shares from one account.

All three platforms sell the same kind of contract, a share that pays one dollar if an event happens, yet they differ in regulation, currency, market model, and cost.

Those differences decide who can use each platform and what a trade costs. Below: a Dexsport vs Polymarket vs Kalshi table, then fees, oversight, and Dexsport's place.

Three Platforms Side by Side

Each row reflects the platforms' own published rules and fee schedules as of late summer 2026.

Last verified: September 2026

Prediction Market Fees Compared

All three platforms take their cut differently, and the difference matters most at 50 cents, where uncertainty peaks.

• Kalshi applies a taker fee of 0.07 × price × (1 − price) per contract, which comes to about $1.75 per 100 contracts at 50 cents and falls toward zero near the extremes

• Polymarket uses a similar curve under its fee schedule effective 30 March 2026, from about $0.75 per 100 shares on sports up to about $1.75 on crypto, while geopolitics markets stay fee-free and makers trade free

• Dexsport does not charge a separate fee per trade; its cost lives inside each Yes and No pair, which typically sums to 101 or 102 cents, roughly 1% to 2% of the stake

Fee schedules and real costs differ, because thin order books add slippage on large orders. Polymarket also asks users to deposit USDC on Polygon, so exchange fees on the way in can matter more than the fee per trade itself.

Access and Oversight

Regulation shapes who can trade and what protection they receive.

Kalshi operates as a federally regulated US exchange, and New York and Massachusetts had each sued it over sports contracts by August 2026. Its market mix leans heavily on sports, which account for the large majority of its volume.

In the Polymarket vs Kalshi contest, Polymarket operates two venues. Its international platform stays blocked for US users under a 2022 settlement with the CFTC.

Polymarket US launched on 3 December 2025 as a separate regulated exchange with identity checks and dollar deposits. The international venue leads on politics and world events.

Dexsport operates outside US regulation, under an Anjouan licence, and serves a crypto-native audience. Its prediction markets share one account with a sportsbook and casino, and the team validates results within 24 hours of an event.

Dexsport's Place in the Field

Dexsport offers the simplest market model of the three, and the order book vs liquidity pool contrast explains why. Each market offers one purchase button per side without limit orders, so every trade accepts the price shown, and a shared pool pays out winners.

Five categories make up Dexsport prediction markets, from sport and crypto to politics, the economy and pop culture. The largest, on the 2028 Republican nomination, had passed $60 million in volume by September, and short crypto price cycles reopen every few minutes.

Our guide to Dexsport's prediction markets covers the product in depth.

The trade-off cuts both ways. Traders who want limit orders, deep books and regulated protection will favour Kalshi or Polymarket US.

Crypto users who already hold stablecoins and use a sportsbook may prefer one account for everything. Resolved bets appear on Dexsport's public desk, where on-chain settlement leaves a visible record.

Conclusion

Kalshi, Polymarket and Dexsport sell the same one-dollar contract through very different structures. Kalshi offers a regulated US exchange in dollars, Polymarket an order book in USDC with a separate US venue, and Dexsport a pool-based product inside a crypto sportsbook.

Costs follow the same split. Kalshi and Polymarket charge taker fees that peak near 50 cents, while Dexsport builds roughly 1% to 2% into each price pair.

Pick the model that matches how you trade and where you live. Know the law in your country, limit how much you commit to open positions, and trade only once you are of legal age, since KYC or AML checks may apply. Responsible gambling applies to every venue.

Disclaimer: The information here is provided for general purposes only and is not legal, tax, investment, or financial advice. Fee schedules, regulatory status and platform features change often, so check each platform's current documentation before trading. Trading on event outcomes involves risk, and rules vary by country, so check the law where you live. Please participate responsibly, within your means, and only if you are of legal age.