%20%20--%3E%0A%3Csvg%20version%3D%221.1%22%20id%3D%22Layer_1%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20xmlns%3Axlink%3D%22http%3A%2F%2Fwww.w3.org%2F1999%2Fxlink%22%20x%3D%220px%22%20y%3D%220px%22%0A%09%20width%3D%2239px%22%20height%3D%2240px%22%20viewBox%3D%220%200%2039%2040%22%20enable-background%3D%22new%200%200%2039%2040%22%20xml%3Aspace%3D%22preserve%22%3E%0A%3Cpath%20fill%3D%22%23FFFFFF%22%20d%3D%22M38.5%2C7H28.2v26h10.3V7z%22%2F%3E%0A%3Cpath%20fill-rule%3D%22evenodd%22%20clip-rule%3D%22evenodd%22%20fill%3D%22%23FFFFFF%22%20d%3D%22M26.1%2C25.5c0%2C5.8-4.1%2C7.5-12.9%2C7.5C3.9%2C33%2C0%2C31.2%2C0%2C25.2v-1.1h11.6%0A%09v2.4c0%2C0.7%2C0.1%2C1.4%2C1.2%2C1.4c1%2C0%2C1.2-0.4%2C1.2-1.3v-0.9c0-1.6-0.9-1.6-3.5-2.2C2.2%2C21.7%2C0%2C19.7%2C0%2C15.3v-0.9C0%2C9.3%2C5.5%2C7%2C12.9%2C7%0A%09c10.2%2C0%2C12.8%2C2.6%2C12.8%2C7.4v1.8h-11v-2.9c0-0.6-0.4-1.1-1.2-1.1c-0.6%2C0-1.2%2C0.4-1.2%2C1.1v0.9c0%2C1.5%2C0.9%2C2%2C3.3%2C2.5%0A%09c8%2C1.6%2C10.5%2C3.3%2C10.5%2C7.5V25.5z%22%2F%3E%0A%3C%2Fsvg%3E%0A)
Kalshi Promo Code SIBONUS: Earn up to $500 Bonus for MLB & WNBA Games
Friday, August 7 brings a loaded slate of MLB and WNBA action, and it's the perfect opportunity to jump into prediction market trading with Kalshi. New users can claim a up to $500 trading bonus using the Kalshi promo code SIBONUS. You'll need to make an initial deposit and complete qualifying trades on the evening's matchups to unlock your bonus. Check out other prediction market promos available today, but this offer is live as of Friday, August 7.
How the Kalshi Promo Code Works for Friday's MLB and WNBA Slate
The Kalshi promo code SIBONUS delivers a welcome bonus that rewards you for trading, regardless of whether your predictions hit or miss. You must be 18 or older and a new Kalshi user to qualify. Enter the code during registration, complete identity verification, and deposit at least $10 to get started.
Here's what you need to know about claiming this offer:
- Complete at least $25 in trades within seven days of registering to unlock your bonus
- Your bonus amount is random and awarded at Kalshi's discretion; only select users receive the full $500
- Bonus funds are credited regardless of trade outcomes
- You must use bonus credit within seven days of receiving it, or it expires
- The bonus applies to any available market, including Friday's MLB games like Braves-Yankees and Dodgers-Diamondbacks, plus WNBA matchups like Mercury-Sun and Dream-Mystics
If you trade $25 on the Braves-Yankees game and your prediction loses, you still receive your bonus. If your prediction wins, you keep those winnings plus your bonus. The bonus structure makes it simple to explore Kalshi's prediction markets without worrying about your initial trades determining your welcome reward.
Claiming Your Kalshi Promo Code Bonus for Friday's Games
Getting started with Kalshi takes just a few minutes. Follow these steps to sign up and begin trading on Friday's MLB and WNBA action:
- Create your account: Visit Kalshi's sign-up page and enter the promo code SIBONUS during registration. Provide your email, phone number, Social Security Number, and residential address.
- Verify your identity: Complete the Know Your Customer (KYC) verification by submitting a government-issued ID and confirming your personal details. This process typically takes just a few minutes.
- Fund your account: Deposit at least $10 using a supported payment method like debit card or PayPal. Make sure you deposit enough to complete $25 in trades.
- Place your first trade: Navigate to Friday's markets and select a game like Astros-Padres or Rays-Mariners. Execute a trade worth at least $25 to qualify for your bonus.
- Receive your bonus: Once your trade settles, Kalshi credits your bonus to your account. You can then use those funds to explore additional markets throughout the evening.
For a deeper look at how Kalshi compares to other prediction markets, read our Kalshi vs. Polymarket review.
Trading is risky, always trade responsibly. If your activity is becoming a problem, support is available by calling 1-800-522-4700.
Add us as a preferred source on Google
An award-winning author at just six years old (it’s true!), Jeff has parlayed early-life accolades into a prominent role in the sports betting content space with Sports Illustrated. As content manager, he leads a talented team of expert betting analysts and sportsbook reviewers focused on delivering industry-best experiences to North American bettors. Jeff joined SI in 2024 and has since been a driving force in enhancing the team’s sports betting coverage. With his inventive mindset and relentless pursuit of "best-in-class" content, Jeff ensures SI readers have access to unparalleled betting analysis that’s comprehensive, unbiased, and well-researched. Jeff’s primary goal is to give new and casual bettors the confidence they need to come to their own conclusions when deciding how and where to bet online. Before joining the SI team, Jeff was a senior editor at Covers, where he laid much of the groundwork for the brand’s commercial sports betting content strategy. Known for his industry knowledge and product expertise, Jeff has been a leading voice with his coverage of burgeoning legal sports betting markets like New York, Ohio, and Ontario. An avid bettor himself, Jeff is a strong proponent of line shopping and sticking with a consistent, manageable unit size. He primarily wagers on MLB, NFL, and NHL player props and cites bet365, Pinnacle, and Sports Interaction as his most-used sportsbooks. Jeff holds a BBA from St. Francis Xavier University. His work has been featured in Newsweek and referenced in news media outlets like the Calgary Herald, Financial Post, and Toronto Sun. The Nova Scotia native has crafted and edited over 400 articles and guides across the sports, iGaming, e-learning, and software industries since 2020.