Saturday, August 8 stacks a full MLB card from 3:05 p.m. ET through 9:50 p.m. ET, including four games on national television. New traders grab a head start before the first pitch. The Kalshi promo code ACTION converts a single $25 trade into up to $500 in bonuses, so anyone who signs up today puts extra capital to work across the entire slate.
How to Claim the Kalshi Promo Code ACTION Offer
Registration takes a couple of minutes on a phone:
- Tap through to Kalshi and select Sign Up.
- Enter the Kalshi promo code ACTION in the promo or referral field.
- Complete identity verification and deposit funds.
- Place a $25 trade on any market.
- Get up to $500 in bonuses.
Enter the code during registration, because the field disappears once the account goes live. The Kalshi referral code ACTION applies to first-time users only, and standard terms govern the payout.
What the $500 Bonus Covers
The bonus lands as trading credit, which means it funds contracts rather than sitting as a locked balance. Traders spread it across single-game markets, series prices, division races, and season-long questions like the MLB MVP. That flexibility separates prediction market promos from traditional sportsbook offers, since a position closes early at the current market price instead of riding to a final settlement.
Saturday's National TV Games to Target
Four matchups reach a national audience, and each one carries active markets:
- Athletics vs. Red Sox, 4:10 p.m. ET on FS1
- Orioles vs. Rangers, 7:15 p.m. ET on FOX
- Guardians vs. White Sox, 7:15 p.m. ET on FOX
- Tigers vs. Giants, 7:15 p.m. ET on FOX
Check MLB lineups roughly two to three hours before each start, since a rest day for a middle-of-the-order bat moves a price quickly. Scan the MLB weather report too, because wind at Fenway Park and marine air in San Francisco both influence run totals. Traders who use the Kalshi promo code ACTION and enter early often catch better prices than the crowd that waits for first pitch.
Why Kalshi Ranks as the Best MLB Prediction Market App
Kalshi operates as a CFTC-regulated exchange, so users trade contracts against one another instead of taking a house line. Prices display as cents on the dollar, which reads as an implied probability and keeps the math simple.
Three features push it toward the best MLB prediction market app label:
- Exit anytime. Sell a position mid-game and bank a profit or cut a loss.
- Transparent pricing. No hidden margin baked into the number.
- Range of markets. Single games, series, playoff odds, and awards races sit side by side.
The Kalshi referral code ACTION gives new users enough starting capital to test several of those market types in one night.
Where the Kalshi Promo Code ACTION Works
The platform serves traders in 41 states plus Washington, D.C.: AK, AL, AR, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IN, KS, KY, LA, ME, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV, and WY.
Kalshi Promo Code ACTION FAQs
What is the current Kalshi promo code?ACTION. Trade $25 after signup and earn up to $500 in bonuses.
Where does someone enter the Kalshi referral code ACTION? The promo field appears during account creation, directly under the personal details section.
Does the code require a large deposit? No. A $25 qualifying trade activates the offer.
What age qualifies? Users register at 18 or older, which differs from the 21 minimum that applies in most states where sports betting is legal.
Do prediction markets differ from sportsbooks? Yes. Prediction markets match traders with each other on an exchange, and positions close before an event ends.
Which markets suit a first trade? Moneyline-style contracts on the four national TV games offer the clearest entry point, and MLB MVP contracts suit anyone who prefers a longer horizon.
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.
