Prediction Markets vs. Sportsbooks: Which Should You Use

With the NFL season here, and prediction markets becoming a bigger part of the picture, consumers have a decision to make.

Should you trade with Kalshi? Polymarket? Or bet with a sportsbook? It’s not always the same answer. In fact, it depends on what you’re betting/trading and what your objective is with the transaction.

Prediction Markets vs. Sportsbooks In The NFL

Since the NFL is front and center, easily the most popular sportsbook offering, that’s a good place to break down differences and determine what product is best for you.

Spreads, totals and moneylines are the most familiar markets. For those standard offerings, Kalshi often has enough depth/liquidity to be well-priced.

However, sportsbooks offer more alternate spreads and totals, which are growing in popularity.

So, if you’re looking at standard lines/pricing, it’s worth shopping both prediction markets and sportsbooks. And the best option may well be Kalshi, with trading fees often coming in lower than a sportsbook’s juice.

If you’re wagering on alternate numbers, then you’re more likely to find what you need and get the bet you want at sportsbooks.

Built For Futures

Futures markets are where operators such as Kalshi create an important difference as traders are given the ability to sell out of their positions, provided they can find a buyer on the other side of the contract.

For example, before the 2025-26 NFL season, the New England Patriots were +6000 in Super Bowl futures odds. That equates to just 1.6% at prediction markets.

By the time the playoffs arrived, New England had a 14-3 record and was +1000 to win the Super Bowl. Then, the Patriots went on to win the AFC and stood at +190 to win the Super Bowl.

That equates to 34.5% at prediction markets. If you bought in at 1.6%, but feared New England couldn’t finish the deal, you could sell at a price that was 21.5 times better.

And while many sportsbooks offer cashouts, those offers often don’t reflect true market value. Prediction markets do reflect true market value. So not only can you sell out of your position – or even a portion of your position, if you prefer – you can do so at a fair price.

A plus for sportsbooks: Deeper futures menus. But the cashout option isn’t guaranteed, and even when it is, it likely won’t reflect true market value.

Player Props

This is one area where sportsbooks arguably still hold the edge. And it’s an important edge, because player props have become a significant percentage of total handle, particularly in the NFL.

Kalshi and other prediction market operators offer player props, but the menus can vary.

On the other hand, sportsbooks consistently offer far more player props, and in more markets. In the NFL, that includes touchdowns, yardage, pass attempts/completions, receptions, rushes and more.

So, you’re more likely to find what you need with sportsbooks, at least for the moment.

In-Game

Another rapidly developing aspect of sports betting and prediction markets is live in-game offerings.

Those offerings are available on prediction markets. And with the NFL’s popularity, that generally leads to liquidity and therefore availability.

Still, the ability to fill a trade depends on having someone willing to accept the other side of that transaction. That might limit in-game categories and the ability to make the trade.

As is the case with all bets, in-game or otherwise, sportsbooks are the second party. It’s you against the house. Sportsbooks offer a broader array of live sides, totals, and player props.

Advantage: sportsbooks.

Parlays/Combos

Parlays are a bookmaker’s best friend. But that doesn’t stop the public betting masses from wagering a little to win a lot, week in and week out.

In short, parlays are hugely popular. Kalshi and other prediction market operators recognize that, so they created a similar product, calling them combos, primarily for regulatory reasons, along with branding.

But sportsbooks have parlays down to a science, with a several-years head start since sports betting went more national after the 2018 strikedown of PASPA.

Sportsbooks have much deeper parlay menus, including the growingly popular same-game parlays, along with the longer-running multi-game parlays.

If parlays are important to you, then sportsbooks are the better option.