Activate the Kalshi promo code ACTION today and claim a $10 new-user bonus on Sunday, March 15. The offer is easy to unlock: simply complete $10 in trades on any available March Madness prediction market, and Kalshi credits your account with $10 in bonus funds that you can use on additional trades. With the March Madness bracket 2026 now in play, this is the perfect moment to start trading on first-round matchups or tournament outcomes.
Using the Kalshi promo code ACTION, traders can explore prediction markets tied to college basketball or other major sporting events. With Champ Week officially finished and conference champions decided, attention across the college basketball world now shifts to the NCAA Tournament.
The end of the conference tournaments signals the start of March Madness, one of the busiest periods on the sports calendar. That creates plenty of opportunities for fans to follow tournament outcomes and test predictions one of the best prediction market apps.
New users can claim this $10 bonus offer in AL, AK, AR, CA, CO, CT, DE, FL, GA, HI, ID, IN, IA, KS, KY, LA, ME, MN, MS, MO, NE, NH, NM, NY, NC, NV, ND, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY, and DC.
Kalshi Promo Code ACTION: Make Predictions on March Madness Today
Now is the perfect time to use the Kalshi promo code ACTION to trade on March Madness bracket 2026 markets. You can pick who will end up winning the entire tournament or place trades on first-round games and early tournament outcomes. I outline the four teams with the highest trader sentiment:
| Team | Probability |
|---|---|
| Michigan Wolverines | 21% |
| Duke Blue Devils | 20% |
| Florida Gators | 16% |
| Arizona Wildcats | 14% |
It shouldn't surprise anyone to see Michigan, Duke, Florida, and Arizona are viewed as the best candidates to win it all. They have been elite teams all season, and no-one would be surprised if either of them came out on top as the March Madness Champion.
For the March Madness tournament, I believe that Duke will end up winning the entire thing. Check out my reasoning below.
- March Madness Champion Prediction: Duke (19%)
The Duke Blue Devils men's basketball can win March Madness largely because of the two-way impact of Cameron Boozer. Boozer gives Duke a versatile frontcourt star who can score inside, rebound, defend multiple positions, and create offense when the game slows down — all traits that are crucial in tournament play. His ability to control the paint and draw defensive attention also opens opportunities for Duke’s perimeter players, giving the Blue Devils a balanced offense and the kind of interior presence that often powers championship runs. Boozer notably averaged 22.5 PPG, 10.2 RPG, and 4.2 APG throughout the season, making him a key factor in March Madness champion prediction markets and March Madness contract trading.
Regardless of how your first trade settles, you still receive a $10 bonus from Kalshi, which makes the Kalshi referral code ACTION an easy way to get started with March Madness predictions. If you’re still considering whether to try the platform, prediction market expert Chris Ilenstine explains why the promotion is worth claiming during the tournament.
“For new users, the welcome bonus is an ideal way to get started,” prediction market expert Chris Ilenstine said. “You receive immediate extra value, which makes this a great moment to register and begin trading on March Madness markets.”
Kalshi Registration Steps for Sunday, March 15
Follow the steps below to activate your $10 new-user bonus in just a few minutes:
- Sign up for a new Kalshi account using the registration link below.
- Complete the required identity verification to enable trading on the platform.
- Enter the Kalshi promo code ACTION in the promo code field during sign-up.
- Place a $10 qualifying trade on any available prediction market.
- Receive your $10 bonus to use on additional trades.
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.
