Our Kalshi promo code ACTION gives you the chance at up to $500 in bonuses after $25 in trades, and Tuesday's Mariners vs Yankees opener at Yankee Stadium gives you a perfect live market to qualify on.
The most wildly televised MLB matchup of the night with first pitch lands set for 7:05 p.m. ET on TBS. Bryan Woo faces Ryan Weathers, and Kalshi prices New York at 55%, but the Mariners should not be counted out so early. Here is how the offer works and where that $25 can go.
Kalshi Promo Code ACTION: TL;DR
| Kalshi Prediction Market | Key Features for Reader |
| Promo Offer | Trade $25, Get up to $500 (randomized) |
| Kalshi Promo Code | ACTION |
| Eligibility | New users, 18+, KYC required, Not available in AZ, IL, MA, MD, MI, MT, NV, OH, and WA. |
| Regulator | CFTC-regulated Designated Contract Market |
| Game | Mariners @ Yankees, 7:05 p.m. ET, TBS, Yankee Stadium |
How to Use Your Kalshi Promo Code on Mariners vs. Yankees this Tuesday?
Kalshi's board for the Mariners vs Yankees this Tuesday.
| Market | Price | Moneyline equivalent |
| Yankees Yes | 56¢ | -127 |
| Mariners Yes | 46¢ | +117 |
Money has moved toward Seattle. New York drifted down through Aug. 9 and 10 while Seattle climbed, and both ticked another point that way on the day on Kalshi's MLB markets.
This as Seattle hands the ball to Bryan Woo (8-8, 4.31 ERA), whose hot four-seam fastball creates a challenging matchup for the Yankees, as they struggle with it coming high and tight. Another layer in New York is the Yankees' bullpen coming off heavy weekend usage, bringing the Mariners power into play. Seattle's 46¢ share price holds substantial value in our opinion.
A $25 first stake, to activate your Kalshi sign-up bonus, buys roughly 56.49 outcome contracts. If Seattle wins, each contract settles at $1.00, yielding a total payout of $56.49 and a net profit of $31.49.
Taking a swing on a 46¢ underdog is a way we would go when using the Kalshi promo code ACTION. Not only could the contract pay out as a yes, bringing profits, you're still earning bonuses. Win or lose your Kalshi balance will not be empty, as the $25 position will trigger anywhere up to $500 in bonuses.
What Happens After You Trade $25 on Kalshi?
Once your $25 in qualifying trades settles, Kalshi assigns your bonus automatically, there is no second code to enter and no manual claim. Unlike other welcome offers that pay every new user the same fixed amount, Kalshi randomizes the reward across a tier structure, so two users completing identical $25 trades can receive very different totals.
The credit lands in your Kalshi balance as bonus funds rather than cash. You can trade it across any market on the platform, including politics, economics, and pop culture as well as sports, but you cannot withdraw the credit itself. Only the proceeds from settled trades made with that credit become withdrawable cash.
Why Do MLB Traders Like the Kalshi Referral Code?
- Accurate Pricing: Consensus pricing and chances, influenced by other traders and market movement, not the sportsbook or ‘house’.
- Cents pricing. A contract at 56¢ states a 56% implied probability outright. No conversion, no hidden hold.
- Wider reach. Federal CFTC regulation puts Kalshi in more states than state-licensed books.
- Early exit. You sell a position mid-game rather than riding it to settlement.
One clarification: the Kalshi promo code and the Kalshi referral code are interchangeable. The same randomized bonus off is on offer and both route allows 30 days to hit $25 in trades.
How Do You Redeem the Kalshi Promo Code ACTION?
- Head over to the prediction market app using this Kalshi promo code link.
- Enter Kalshi promo code ACTION in the registration form. Codes attach at signup only.
- Verify your identity with a government ID and a photo of yourself holding it.
- Deposit enough to cover $25 in trades.
- Make at least $25 within 30 days of opening the account.
- Collect your bonuses up to $500. When the $25 has settled.
Kalshi Promo Code ACTION FAQs
What is the Kalshi promo code? The Kalshi promo code is ACTION. Use this to claim up to $500 in trading bonuses.
How long does the Kalshi promo code bonus last? Seven days from being granted. Unused credit expires.
Does the bonus credit withdraw as cash? No. The bonuses stays locked to Kalshi. You can only withdraw after you trade the bonuses.
Does the qualifying trade need to win? No. Kalshi counts volume, not results. Win or lose the $25 will trigger the random bonus.
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information. Not available in AZ, IL, MA, MD, MI, MT, NV, OH, and WA.
