New traders who want the Kalshi sign up bonus can unlock $55 in bonus credits with Kalshi promo code ACTION55 before Brewers vs. Rays starts MLB World Series Game 5 at 8 p.m. ET on FOX. With three sports on tonight's slate, there's plenty to trade.
Tonight’s college football and NBA cards give your first $55 plenty of places to land:
- Kennesaw State vs. Middle Tennessee: 7 p.m. ET
- 76ers vs. Pacers: 7 p.m. ET
- Brewers vs. Rays: 8 p.m. ET
- Jacksonville State vs. New Mexico State: 8 p.m. ET
- Thunder vs. Mavs: 9:30 p.m. ET
Use our Kalshi promo code ACTION55 today to lock in the Kalshi sign up bonus, and read our Kalshi review and the best prediction market promos before you trade.
Kalshi Sign Up Bonus at a Glance
| Kalshi sign up bonus | Trade $25, Get $55 in Bonuses |
| Kalshi promo code | ACTION55 |
| Qualifying trades | $25 within 7 days of opening your account, win or lose |
| Bonus | $55 in bonus credits |
| Bonus expiry | 7 days after Kalshi issues the credits |
| Who qualifies | New users, 18+ |
| Tonight’s top market | World Series Game 5, 8 p.m. ET on FOX |
| Last Verified | Wednesday, Oct. 28, 2026 by Tom Fuller |
Grab the Kalshi sign up bonus with ACTION55 before the first pitch of Game 5.
Which Trades Do We Like for the Kalshi Sign Up Bonus Tonight?
| Sport | Pick | Price |
| MLB | Jacob Misiorowski 6+ strikeouts | Yes 50¢ |
| NBA | Cooper Flagg 25+ points | Yes 53¢ |
| CFB | Jacksonville State wins by over 3.5 points | Yes 48¢ |
Kalshi Prediction 1: Jacob Misiorowski 6+ Strikeouts (Yes 50¢)
Misiorowski's season rate clears this line easily. He struck out 252 batters in 174.2 innings, about 13 per nine, so five innings at his normal pace yields roughly seven.
His October dipped to six, five and three strikeouts, and the Rays rarely swing and miss. He takes the mound on four days of rest, though, and Milwaukee's bullpen ran through seven relievers in Game 4, so we expect Pat Murphy to stretch his ace.
Kalshi Prediction 2: Cooper Flagg 25+ Points (Yes 53¢)
Flagg is averaging 25.0 points this season, including 32 at Houston and 29 with 11 assists at Miami. Oklahoma City sits Chet Holmgren, Jalen Williams, Cason Wallace and Alex Caruso, which strips away its rim protection and its best perimeter defenders.
Dallas is thin too, with Dereck Lively II out and Kyrie Irving questionable, so we expect the shots to run through Flagg. The Thunder held him to 9.0 points in two games last season.
Kalshi Prediction 3: Jacksonville State Wins by Over 3.5 Points (Yes 48¢)
Jacksonville State arrives rested and in form. They sit 5-2 (3-0) after a bye, led by Caden Creel (1,637 passing yards, 12 touchdowns, 500 rushing yards), and they won the last meeting with New Mexico State 54-13.
The Aggies (3-4) lost 22-3 at FIU, a team Jacksonville State beat 27-24, and dropped games to New Mexico and Hawaii by 24 and 10 points. All four of the Gamecocks' FBS wins came by 10 or fewer points and both starting linebackers are out for the season, but we still like a field goal plus one point.
How Do You Claim the Kalshi Sign Up Bonus?
- Use our Kalshi sign up bonus link
- Create your Kalshi account and enter the Kalshi promo code ACTION55 at sign up.
- Verify your identity with a photo ID and a selfie.
- Fund your account.
- Place $25 in trades within seven days of opening your account. Tonight’s games give you plenty of markets.
- Spend your $55 in bonus credits within seven days.
New to the platform? Read how to bet on Kalshi first.
Kalshi Sign Up Bonus – FAQs
What Is the Kalshi Sign Up Bonus? It is Kalshi’s welcome offer for new users: trade $25, get $55 in bonus credits. Sign up with ACTION55, finish $25 in trades within seven days of opening your account, and Kalshi issues the credits whether those trades win or lose.
Where Do I Enter Kalshi Promo Code ACTION55? Type ACTION55 into the promo code field when you create your account.
Do I Need to Win a Trade to Get the $55? No. Kalshi pays the bonus after $25 in trades, win or lose. The credits expire seven days after Kalshi issues them, so use them quickly.
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/55. 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.
