New customers can use the Kalshi promo code WTOP to claim a $10 sign-up bonus after making $10 in trades, with eligibility limited to people 18 and older in the United States.
On a day packed with major sports, a new sign-up offer is making its pitch directly to prediction-market newcomers.
Kalshi is advertising a promo code called WTOP ahead of Thursday’s MLB slate and World Cup prediction markets. The offer is straightforward: enter the promo code during Kalshi registration to unlock a $10 bonus after making $10 in trades.
The details laid out for new users are specific. A minimum first-time deposit of $1 is required. The bonus is available in all 50 U.S. states, with no geographic restrictions. To qualify, users must be 18 years or older and located in the United States. Kalshi says the offer’s last verification date is June 11, 2026.
The platform frames today’s market as easy to reach—aimed at customers who want to start with the same day’s games, including MLB matchups such as Dodgers @ Pirates, Mariners @ Orioles, and Braves @ White Sox.
Kalshi also says World Cup prediction markets are available alongside MLB, offering users a second track beyond domestic games.
For readers trying to understand what the MLB board looks like today. the promotional materials list the following probabilities: Los Angeles Dodgers at 60.4% versus Pittsburgh Pirates at 39.6%; Seattle Mariners at 51.9% versus Baltimore Orioles at 48.1%; and Atlanta Braves at 52.0% versus Chicago White Sox at 48.0%.
The same materials walk through what a $10 trade could mean for either side of those probabilities. The pitch claims a successful $10 prediction on the Los Angeles Dodgers at a 60.4% probability would yield $6.56 in profit. It also says backing the Pittsburgh Pirates at 39.6% could return $15.25 profit if successful.
For the Dodgers–Pirates matchup. the offer’s sports breakdown includes team records and statistical reads: the Los Angeles Dodgers are described as arriving in Pittsburgh with a 43-25 record. backed by a team .789 OPS and a 3.24 staff ERA. The Pittsburgh Pirates are listed with a 35-33 record, a .737 OPS, and a 4.16 staff ERA.
The promotion similarly summarizes the Mariners–Orioles matchup through a pitching comparison. It lists Seattle as 36-33 with a 3.54 ERA, while Baltimore is described as 32-37 with a 4.56 collective ERA.
The path to the bonus is spelled out as a step-by-step process. First, users register for an account by providing standard personal information and required proof of identification. Next, the promo code WTOP must be entered during registration to opt into the offer. Then, users must make a first-time deposit of at least $1.
Finally, the platform says customers need to place $10 worth of trades to activate the welcome bonus. It also states that users do not have to risk a single $10 trade. saying predictions can be broken up into a cumulative sum of $10 in trades. Once the $10 trading requirement is met, the $10 sign-up bonus is credited to the account and ready for use.
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