Sign up with the Kalshi MLB promo code LABS, trade $25 on Giants vs. Red Sox at 3:10 p.m. ET on NBC or any other game on the slate, and collect a $25 bonus today, Sunday, Aug. 23, 2026.
The Kalshi MLB promo code LABS turns one $25 position into $25 of extra trading capital, and the 3:15 p.m. ET finale at Fenway Park hands you a live market to target. Register by tapping the link above, use our code, and put $25 to work on MLB lineups.
Kalshi MLB Promo Code LABS: Offer Snapshot
| Detail | Terms |
|---|---|
| Kalshi promo code | LABS |
| Offer | Trade $25, get $25 bonus |
| Game in focus | Giants vs. Red Sox, 3:15 p.m. ET, NBC and Peacock |
| Who qualifies | New Kalshi accounts, 18 and over |
| Payout speed | Bonus credit lands minutes after your $25 in volume clears |
Claim the Kalshi Promo Code LABS in Four Steps
- Tap a Kalshi link on this page and enter information such as your name, email, and date of birth.
- Insert the Kalshi MLB promo code LABS in the correct field. Missing this steps means misses the window into $25 worth of site credit.
- Kalshi operates as a CFTC regulated exchange, meaning you must verify your identity by uploading a selfie and an image of your government-issued ID.
- Trade $25 on any market. Ten $2.50 positions clear the threshold as easily as one $25 ticket.
Kalshi had one of the quicker processes when it comes to registration flow claiming prediction market promos. Even though I had to upload my ID and a selfie, the process from start to finish only took a few minutes. One note to remember yourself is you only need to trade $25 to unlock your bonus. Your qualifying MLB picks don’t need to settle before triggering the reward.
Giants vs. Red Sox Odds: Kalshi vs. Polymarket
| Market | Kalshi | Polymarket |
|---|---|---|
| Red Sox win | High 50s to low 60s (cents) | High 50s to low 60s (cents) |
| Giants win | Upper 30s to low 40s (cents) | Upper 30s to low 40s (cents) |
| Regulation | CFTC regulated exchange | Offshore built order book |
| Settlement | US dollars | USDC |
| New trader bonus | $25 with code LABS | $20 with code LABS |
Giants vs. Red Sox is a tightly projected game to trade on Kalshi and Polymarket, two of the best MLB prediction market apps. This makes each platform’s welcome bonus a differentiator in why you should use them.
Kalshi pays you $25 to show up, trade $25, and answers to a federal regulator. Refresh both boards once the lineups post, because a Trevor Story or Marcelo Mayer activation moves this number fast.
Our Giants vs. Red Sox Pick Today
- Motivation gap. Boston sits firmly above .500 and holds an AL wild card spot. San Francisco sits 23 with a losing record playing out the final string of the season.
- Boston’s bats run hot. The Red Sox have been one of the hottest offenses in baseball over the last month, and especially in the last couple of weeks.
- San Francisco lists a TBD. That points toward an opener or a bullpen day at Fenway, and the Green Monster punishes that plan on a warm afternoon.
- The one risk. Rookie lefty Jake Bennett takes the ball with a 3.46 ERA and nine days of rest after Boston skipped his turn to manage the heaviest innings load of his career. Rust cuts both ways.
Pick: Red Sox Yes at 62 cents or better. Above that price, take the Giants and the return trip through a thin San Francisco bullpen instead.
If you like our content, sign up now and enter the Kalshi promo code LABS during registration to let them know FantasyLabs referred you.
Grab the Kalshi MLB promo code LABS before 3:15 p.m. ET, trade $25, and put your $25 bonus to work on the Giants-Red Sox series finale.
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.
