Kalshi MLB promo code GRINDERS unlocks up to $500 for Orioles vs. Yankees on Prime Video
Sign up with the Kalshi MLB promo code GRINDERS as a new trader and complete just $25 in total trades to unlock a tiered bonus worth up to $500. Today’s Yankees-Orioles game at Camden Yards (6:35 p.m. ET on Amazon Prime Video and MLB Network) gives you an obvious target to put your qualifying $25 on as Max Fried opposes Chris Bassitt in the middle game of a three game set with real American League East stakes.
I redeemed Kalshi promo code GRINDERS myself with this exact offer, and it took me under six minutes from start to finish. Tap the module below to make your own account, or keep reading this article to learn more about how to apply the Kalshi sign-up bonus on Yankees vs. Orioles this evening.
Kalshi MLB promo code GRINDERS offer details
- Kalshi MLB promo code: GRINDERS
- Welcome offer: Trade $25, get up to a $500 bonus
- Bonus range: A random credit worth $15 to $500
- Tier odds: Roughly 70% of new users land $15, 24% land $35, 5% land $75, and 0.35% hit the full $500
- How you qualify: Complete $25 in total trade volume within 30 days of signup. No winning trade required
- Bonus expiration: Seven days after Kalshi credits your account
My biggest piece of advice is to view the $500 number as a ceiling, not an expectation. Kalshi publishes those tier probabilities in their promotional terms for your reference. Despite the non-cemented bonus figure, the Kalshi MLB promo code GRINDERS is one of the top prediction market promos in the industry to register with today, Wednesday, Aug. 19, 2026.
How I signed up with Kalshi promo code GRINDERS
1. Tap this link or any offer module in this article to be directed to the Kalshi sign-up screen.
2. Register by entering your email address, Google account info, or Apple ID credentials.
3. Enter the Kalshi MLB promo code GRINDERS in the prompted field.
4. Add your legal name, date of birth, address, and Social Security number.
5. Upload an image of your driver’s license and upload a selfie. Kalshi blocks trading until verification clears.
6. Deposit through ACH, Apple Pay, debit card, wire, or USDC.
7. Place $25 trades on Yankees vs. Orioles MLB picks to net your randomly issued tier bonus.
Note that you have the ability to spread your $25 in qualifying Kalshi predictions across small positions instead of having to put them all on one ticket. Spend however you deem is best suited for your situation to cross the threshold.
Yankees vs. Orioles Odds on Kalshi and Polymarket
Kalshi prices contracts in cents, where 60¢ equals a 60% implied probability. Polymarket shows the same math as a percentage, and the gap between the two boards shifts all afternoon.
- Kalshi: Yankees Yes near 60¢, Orioles Yes near 41¢
- Polymarket: Yankees near 58%, Orioles near 42%
- Sportsbook equivalent: roughly -150 New York, +125 Baltimore
Kalshi wins on market depth, desktop tools, and early selling. Fund your account and take whichever market suits your desires after redeeming the Kalshi promo code GRINDERS from RotoGrinders.
- Yankees vs. Orioles pick today: Yankees YES under 62¢
Fried owns a 2.81 ERA and 79 strikeouts, and his ground ball profile plays beautifully in front of Camden Yards’ deep left field wall. Bassitt sits at 5.11 ERA with only 40 strikeouts, which means contact, traffic, and long innings against a Yankees lineup that leads the American League with 171 home runs. Pete Alonso arrives scorching, and New York already owns this season series five games to two.
Baltimore’s whole path runs through zero home runs allowed. The Orioles post 30 wins against 11 losses in those games and struggle everywhere else. Against a righty carrying a five handle ERA, that plan looks thin. As always when making baseball predictions, check out the RotoGrinders MLB weather report to take the elements into consideration.
If you like our content and want the head start I got, sign up now with the Kalshi MLB promo code GRINDERS, trade $25 on Yankees vs. Orioles with one of the best prediction market apps, and unlock your bonus worth up to $500.
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.
Image Credit: RotoGrinders Network