The excitement of March Madness is back, and fans are finding new ways to get involved beyond filling out brackets. One of the most popular options this year is trading on Kalshi, where you can buy and sell positions on outcomes like which teams will reach the Final Four.
With the Kalshi promo code ACTION, new users can trade $10 and get a $10 bonus, making it easy to jump in right away. If you’ve been searching for one of the best prediction market apps, this is a great place to start.
What Is Kalshi, and How Do Prediction Markets Work?
Kalshi operates differently than traditional sportsbooks. Instead of placing bets, users trade on outcomes in prediction markets, buying “Yes” or “No” shares for specific events, such as whether a team will make the Final Four.
Each share is priced between 1¢ and 99¢, reflecting the market’s implied probability. If your prediction is correct, the share settles at $1. If not, it settles at $0. This format allows you to buy low and sell high as odds move throughout the tournament.
That flexibility is especially valuable during college basketball’s biggest stage, when momentum can shift quickly. With the Kalshi promo code ACTION, you can start trading with a bonus and test strategies immediately.
Who Will Make the Final Four?
The biggest question every year is simple: Who Will Make the Final Four? On Kalshi, you can trade that outcome in real time.
Here’s how the current market looks:
There are also intriguing longshots:
- Gonzaga (11¢)
- Arkansas (10¢)
- Michigan State (10¢)
These lower-priced teams can deliver big returns if they make a deep run. That’s the advantage of prediction markets—you’re not just picking winners, you’re identifying value.
New users can take advantage by signing up with the Kalshi promo code ACTION or the Kalshi referral code ACTION to claim a bonus and start trading these markets right away.
How Many #1 Seeds Will Make the Final Four?
Another key market to watch is: How Many #1 Seeds Will Make the Final Four?
On Kalshi, the odds currently suggest:
- At least one #1 seed (93¢) – Very likely
- Two or more (65¢) – Still favored
- All four (7¢) – A longshot scenario
This market gives traders a broader way to approach the tournament. Instead of focusing on one team, you can trade based on how you expect the bracket to unfold overall.
Because these odds can shift quickly after early-round upsets, this is one of the most dynamic ways to engage with the tournament. It’s also part of why Kalshi is gaining traction among users looking for the best prediction market apps.
To get started, use the Kalshi promo code ACTION or the Kalshi referral code ACTION to unlock your bonus and begin trading immediately.
Final Four Sum of Seeds Odds
For a more advanced strategy, check out the Final Four Sum of Seeds Odds market.
This unique option tracks the combined seed numbers of the four semifinal teams:
This market rewards a deeper understanding of bracket dynamics. If you expect a chalk-heavy tournament, you might lean toward lower sums. If you’re predicting chaos, higher sums could offer better value.
Markets like this highlight why Kalshi stands out, especially during promos like the Kalshi billion dollar bracket, which adds even more excitement to the tournament.
With the Kalshi promo code ACTION, you can test these strategies with minimal risk.
Why Now Is the Best Time to Trade
The early rounds of March Madness are when volatility is at its highest. Upsets, injuries, and momentum shifts can all impact prices dramatically.
That creates opportunity.
Instead of just watching games, you can actively trade—buying into favorites like Duke at 53¢ or taking a chance on longshots like Gonzaga at 11¢ and selling if their odds improve.
With the Kalshi promo code ACTION, you can trade $10 and get a $10 bonus, giving you a low-risk way to get started. You can also use the Kalshi referral code ACTION to access the same offer and jump into the market.
How to Get Started on Kalshi
Getting started is simple:
- Sign up on Kalshi
- Enter the Kalshi promo code ACTION
- Trade $10 and get a $10 bonus
- Start trading Final Four markets immediately
From there, you can explore everything from team-specific odds to broader markets like How Many #1 Seeds Will Make the Final Four?
Final Thoughts
There’s no better time to get involved in March Madness. Trading on Kalshi adds a new layer of excitement, giving you the chance to react in real time as the tournament unfolds.
Whether you’re backing favorites or hunting for longshots, these markets offer something for every strategy.
Don’t miss out—use Kalshi promo code ACTION to claim your bonus, start trading today, and see if you can predict Who Will Make the Final Four?
Must be 18 years or older and have a legal, U.S. residential address within the applicable state, D.C., or U.S. territories. Not available in AZ, IL, MA, MD, MI, MT, NJ, and OH.
