Kalshi and Polymarket are using sports-publisher affiliate promotions around NFL Week 2 to reach football bettors, but the available offers vary by publisher, code and eligibility terms. The push shows prediction-market exchanges adopting parts of the sportsbook acquisition playbook while still operating under a different federal exchange framework.
What changed around NFL Week 2?
Prediction-market sports marketing has moved from product education toward direct customer acquisition. In the week leading into Sunday, September 20, 2026, sports and betting publishers carried new-user offers tied to Kalshi and Polymarket. Some pages used NFL Week 2 as the hook, while others used college football Week 3 games, including Saturday, September 19 matchups.
The pattern is familiar from online sports betting: publishers write around high-attention games, attach a new-user code and route readers to a platform. For prediction-market exchanges, the pitch is different from a sportsbook pitch. The product is framed as event-contract trading, prices move in cents, and contracts settle based on specified outcomes. The platform model is also different because exchanges match buyers and sellers rather than booking every wager as the house.
That distinction matters because the promotional format can make exchange products look closer to sportsbook offers than their legal structure suggests. A reader may see team names, bonuses and football scheduling in the same article, even though the companies are presenting the activity as trading on federally regulated event contracts. The result is a retail funnel that resembles betting media, attached to products regulated and contested through a different set of rules.
Which offers are supported by published terms?
The clearest Kalshi offer in the current affiliate set is WTOP55. SportsBettingDime reported on September 19, 2026, that new Kalshi customers using WTOP55 could receive a $55 bonus after completing $25 in trades, with a first deposit listed at $10 on that page. The same publisher’s Kalshi referral-code page described the $55 bonus after $25 in trades but showed different state-availability language, which makes the specific offer page more useful than any single generalized eligibility table.
Other Kalshi promotions used different codes and bonus amounts. New York Post betting pages published September 18 and September 19 described NYPMAX as a Kalshi code offering a $25 bonus after $25 in trades for new users around college football games. SportsBettingDime separately described an earlier Kalshi code, DIME, as a trade-$25, get-$25 offer. Those examples point to a rotating affiliate structure rather than one national football campaign with uniform terms.
Polymarket has also appeared in publisher-specific new-user promotions. New York Post betting coverage described NYPMAX1 as a Polymarket promotion requiring a $10 deposit for a $50 bonus, with the offer positioned around college football and NFL coverage. The relevant point is not that every Polymarket code has the same structure. It is that sports-media distribution is being used to convert game-day traffic into funded prediction-market accounts.
Eligibility language differs across pages and can change by campaign. Kalshi affiliate pages reviewed this week generally limited offers to new users, required users to be at least 18 years old and restricted access by state. Some pages listed Arizona, Illinois, Massachusetts, Maryland, Michigan, Montana, Nevada, Ohio and Washington as excluded. Another SportsBettingDime referral page listed New Jersey instead of Nevada and Washington. That inconsistency is why live, offer-specific terms matter more than a broad availability summary.
How are Kalshi and Polymarket regulated?
Kalshi’s core federal status is documented by the Commodity Futures Trading Commission. The CFTC lists Kalshi as a designated contract market with an original designation date of November 3, 2020. The CFTC’s designated contract market database also says that on January 17, 2025, the Commission granted Kalshi’s petition to modify its order of designation to permit intermediated futures trading.
Polymarket’s U.S. regulatory path runs through QCX LLC. CFTC designated contract market filings list QCX LLC, doing business as Polymarket US, as designated on July 9, 2025, and state that QCX is operating under the assumed name Polymarket US. A December 2025 CFTC rules filing also refers to the QCX dba Polymarket US rulebook.
Those federal records are central to how both companies and their affiliates describe the products. They do not, by themselves, make every sports promotion available in every state or resolve every state-law dispute over sports event contracts. State regulators and gaming agencies have continued to challenge or scrutinize the category, while exchanges argue that federally regulated event contracts fall under commodities law rather than state gambling regimes.
That conflict makes state-by-state language more than fine print. A promotion placed in a national football article may still be unavailable to a reader based on location, age, account status or the product being traded. For trade-press readers, the affiliate terms are useful less as consumer advice than as evidence of how exchanges are navigating the gap between national media distribution and fragmented legal risk.
Why does the affiliate model matter for prediction markets?
The affiliate model is one of the clearest signs that prediction markets are competing for a broader retail audience. A publisher covers a game, embeds a new-user offer and is typically compensated when readers become customers. DraftKings, FanDuel and other sportsbook operators used similar publisher relationships after the post-PASPA expansion of state-licensed online betting, although sportsbook licensing, taxation and compliance obligations differ from the exchange model.
For exchanges, the commercial problem is partly about liquidity. A market with more participants can support more active trading around high-attention events, including football games. That does not mean every promotion produces durable users or better prices. It means customer acquisition has become a visible part of the sports-event-contract business, not merely a background function.
The risk is that promotional coverage can blur the line between journalism, affiliate marketing and platform messaging. A publisher may accurately describe an exchange as CFTC-regulated, but that label is also commercially useful to the platform being promoted. Readers still face trading risk. Event contracts can settle at zero, and bonuses are generally tied to platform terms rather than functioning as unrestricted cash.
For Kalshi and Polymarket, the strategic question is whether sports event contracts can scale through channels built for betting audiences while withstanding a more complicated legal map. The exchanges are competing with each other, but they are also testing whether football readers who are accustomed to sportsbook offers will fund accounts on platforms that describe themselves as prediction markets rather than bookmakers.
What should the market watch next?
The immediate test is the rest of NFL Week 2. The NFL schedule lists most Week 2 Sunday games on September 20, 2026, including Eagles at Titans at 1 p.m. ET. Giants at Rams is scheduled for Monday, September 21, at 8:15 p.m. ET on ESPN. Those games give exchanges another national football window to test whether sports contracts can draw repeat activity after the opening weeks of the season.
The larger milestone is regulatory. CFTC public designated contract market filings place Kalshi and QCX dba Polymarket US inside the federal exchange framework, but state-level friction remains central to where and how sports event contracts can be offered and marketed. If football-season affiliate promotions continue, the important documents to watch are not just publisher bonus pages. They are exchange rule filings, state eligibility terms and the next court or agency actions over sports event contracts.
