The Open Championship first round is underway at Royal Birkdale, and the Kalshi promo code ACTION lets you jump in right now. Trade $10 and you instantly get a $15 bonus. Scottie Scheffler is already on the course, and Rory McIlroy tees off at 10:15 a.m. ET, so you still have time before the marquee names make their move.
This offer turns a single $10 golf trade into $15 in bonus funds. Kalshi delivers one of the best prediction market promos this week, and you can claim it in just a few minutes.
Prediction markets let you trade real outcomes the same way you'd buy and sell shares, and the Open Championship offers dozens of contracts. With the Kalshi referral code ACTION, you can back a first-round leader, the eventual champion, or a head-to-head matchup at live prices that move as the round unfolds.
The first round is well underway at Royal Birkdale, with tee times running through 11:21 a.m. ET, and USA is airing live coverage right now through 3:30 p.m. ET. Scottie Scheffler is already posting a number, and Rory McIlroy tees off at 10:15 a.m. ET, so fund your account now and trade the leaderboard as it takes shape.
How to Use Kalshi Promo Code ACTION on Open Championship Today
Applying the Kalshi promo code ACTION on the Open Championship takes just a few steps. Register, enter the code, fund your account, and open the golf markets to find contracts on first-round leaders and the champion.
Our analysts have already broken down a strong first-round leader target. Read the pick below, then use the Kalshi promo code ACTION to trade it before the tee times pass.
Open Championship First Round Leader Pick: Rory McIlroy (3.5%): Royal Birkdale rewards accuracy with its narrow fairways and punishing bunkers, making Rory McIlroy an intriguing first-round leader target as his driving accuracy has improved and he ranks 36th on the PGA Tour in greens in regulation. McIlroy is coming off a T7 finish at the Genesis Scottish Open, where he was tied for the first-round lead, and he has previously been the first-round leader at The Open twice (2010 and 2014).
The Trade $10, Get $15 deal ranks among the best prediction market promos this weekend, and the Kalshi referral code ACTION locks it in the moment you register.
Ready to start? Follow the sign-up steps below to claim your bonus with the Kalshi referral code ACTION and trade the Open Championship first round today.
Kalshi Sign-Up Steps on Thursday, July 16
Getting started on Kalshi is a little different from a traditional sportsbook because it operates as a federally regulated financial exchange. Here’s how to get your account set up for the Open Championship:
- Create Your Account & Enter the Promo Code: Sign up and enter the Kalshi promo code ACTION during registration to unlock the Trade $10, Get $15 bonus.
- Complete Identity Verification: Because Kalshi operates under CFTC oversight, you must complete a standard KYC (Know Your Customer) verification before funding your account.
- Deposit Funds: Add money to your account using a debit card, ACH transfer, wire transfer, or crypto (USDC only).
- Place Your First Trade: Navigate to the Open Championship market and submit it. You can either:
- Use a Quick Order to buy instantly at the current market price, or
- Set a Limit Order to choose the exact price you’re willing to pay.
With the Kalshi referral code ACTION, you don't need to make a single $10 trade to unlock the $15 bonus. You can make smaller trades in other markets related to the Open Championship, and even use an odds converter to help interpret implied probabilities. Kalshi Reddit users should claim the Kalshi promo code ACTION to unlock $15 in bonus funds for the Open Championship.
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, NV, and OH.


