New users can use our Kalshi promo code ACTION to unlock the platform's Trade $25 Get Up to $500 welcome offer ahead of Saturday's MLB slate.
The early window features the Athletics vs. Boston Red Sox at historic Fenway Park (4:15 p.m. ET, live on FS1). Complete $25 in trades, get access to one of the top prediction market promos, and you can get up to $500 in bonuses before the first pitch is even thrown.
Kalshi Promo Code ACTION – Easy Reader Breakdown
| Kalshi Prediction Market | TL;DR for Readers |
| Kalshi Promo Code | ACTION |
| Kalshi Welcome Offer | Trade $25, Get Up to $500 Bonus |
| Minimum Deposit | $10 |
| Guaranteed Bonus | $15 – $500 |
| Eligibility | New Users, 18+ (21+ in select states) |
| Availability | 41 States + DC (Excludes AZ, IL, MA, MD, MI, MT, NV, OH, WA) |
What Does Kalshi Promo Code ACTION Actually Pay?
Forget boring flat bonuses; Kalshi turns your welcome offer into a chance to win big! As soon as you place $25 in trades, an instant bonus credit drops straight into your account balance.
Decided at random, you could get anywhere from $15 to $500, with the chances laid out below:
| Bonus Tier | Chance |
| $15 Tier | 70% Chance |
| $35 Tier | 24% Chance |
| $75 Tier | 5% Chance |
| $100 Tier | 0.65% Chance |
| $500 Tier | 0.35% Chance |
Everyone gets at least $15 in bonuses. All trades you execute across any MLB markets today, A’s vs Red Sox, or any of the other 15 matchups count. Moneyline outcomes, team totals, player props, or postseason futures can each count toward meeting the $25 requirement.
- Actions Athletics vs Boston Pick with Kalshi: Take $25 on Boston to Win at $0.72 – $34.05 if Yes
Boston are coming back to Fenway in fine form 8-2 in their last 10 vs a dismal A’s 1-9, currently one of the worst teams in baseball. Let alone when we consider their July series, the Red Sox winning three of four on the road, putting the Athletics to shame in their own backyard.
This also counts as the Kalshi referral code qualifying trades, unlocking your bonus funds. While a $9.05 profit is low, the returns and your bonuses, up to $500, will set you up remarkably well for the rest of the MLB slate this Saturday with Kalshi.
Saturday's MLB Markets with Kalshi
Saturday's MLB schedule runs from 2:10 p.m. ET through late West Coast games settling at 9:40 p.m. ET, with the Athletics vs. Boston Red Sox matchup commanding afternoon broadcast attention at 4:15 p.m. ET on FS1.
MLB prediction markets are wide and varied – and with Kalshi’s bonuses under your belt, there is a world of contracts and trades to explore, all with house money.
- Game Winner Markets: Offer the tightest spreads and highest volume, providing the simplest, easiest route for new traders. Simply, who wins the game.
- Team Totals: Run lines, spreads and more are all available with Kalshi markets, one for the eagle eyed traders.
- Player Props: Feature strikeouts, HR, hits and more. These contract have much spreads and variance, creating rapid price swings during early innings.
Where Does Kalshi Operate in the US?
Kalshi is a federally regulated exchange supervised directly by the Commodity Futures Trading Commission (CFTC). Because Kalshi operates a peer-to-peer contract clearing structure rather than a traditional sports betting operator, it is legally accessible to residents aged 18+ in 41 states and Washington, D.C.
Excluded States: Kalshi event contract trading is currently unavailable to residents in Arizona, Illinois, Massachusetts, Maryland, Michigan, Montana, Nevada, Ohio, and Washington.
How Do You Claim Kalshi Promo Code ACTION?
- Click any Kalshi promo code link on this page to
- Select "Sign Up" and enter your basic account credentials.
- Enter ACTION into the designated referral/promo code box.
- Complete standard KYC identity verification (requires full legal name, DOB, address, and last 4 digits of SSN).
- Deposit $10 or more and execute at least $25 in total event contract trades
- The random bonuses up to $500 will be automatically added to your account
Pro Tip: You must enter Kalshi promo code ACTION when signing up. Failing to input the code before advancing past identity verification may make you miss out on the bonuses.
Kalshi Promo Code ACTION FAQs
What is the Kalshi promo code offer? New users who enter the Kalshi promo code ACTION and execute $25 in event contract trades receive a randomized promotional trading credit between $15 and $500.
Is a Kalshi referral code ACTION the same as a promo code? Yes. ACTION counts as both a Kalshi referral code and a promo code during registration and unlocks the identical welcome offer.
How do I trade the Athletics vs. Red Sox game on Kalshi? Search "MLB" or "Red Sox" in the app, select the Athletics vs. Boston Red Sox event hub, choose your contract outcome (Moneyline, Spread, or Total), choose "Yes" or "No", enter your contract quantity, and confirm your order.
Are prediction market promos worth it for new traders? Yes. Because Kalshi operates with zero house edge and transparent peer-to-peer order books, receiving a guaranteed minimum $15 credit on $25 in trades yields an immediate positive expected value (+EV) baseline.
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.
