March Madness 2026: A European Affiliate’s Guide to Surviving (and Thriving) in the US Market
Selection Sunday just dropped, and just like that—March Madness is officially here. For affiliates, that means one thing: the start of one of the year’s biggest player acquisition windows.
But if you’re a European affiliate looking across the pond at the US college sports scene, it can feel a bit like showing up to a party where everyone else already knows the rules. The teams, the betting culture, the sheer chaos of 67 games in three weeks—it’s a lot.
So we asked Caleb Dykema, co-founder of Vault Network, to walk us through the basics. From compliance landmines to content strategy, here’s how European affiliates can make the most of March Madness without losing their minds.
Why Should Europeans Even Care About College Basketball?
Let’s be honest: American sporting events can feel weirdly insular. March Madness—the annual tournament that decides which college basketball team is the best—is a perfect example.
In Europe, betting revolves around football and a handful of top-tier leagues. In the US? College basketball is a cultural phenomenon. We’re talking 68 teams, 67 games, and billions in wagers squeezed into three weeks. It’s one of the biggest spikes in new player acquisition you’ll see all year.
For European affiliates, the US college scene can feel unfamiliar. There’s no single dominant league. Prop bets and player-focused wagers rule the day. And the sheer volume of games means you’ve got fresh promotional opportunities daily—something that barely exists in most European sports calendars.
What’s in It for Affiliates?
If you play it right, March Madness gives you:
- High-volume acquisition windows every single day
- Easier entry points for new US traffic
- Strong long-term retention potential—if you send users to the right offers
This is also where daily fantasy sports (DFS) and prop betting really shine. Brands like PrizePicks and Underdog have built massive audiences on DFS formats that are still relatively niche in Europe.
At Vault Network, we’ve positioned ourselves as both a launchpad and a bridge for European affiliates looking to scale in the US. Here’s what we’ve learned about riding the March Madness wave.
1. Don’t Treat Every State the Same
Not all states are created equal when it comes to March Madness. Focus your energy on markets with deep college basketball roots or massive fan bases. Think:
- North Carolina
- Kansas
- Kentucky
- Arizona
- Texas
- California
- Florida
These states see noticeably higher engagement and betting volume—fans are emotionally invested in their local teams.
Do your homework. Figure out which states have the strongest viewership and the most mature legal betting frameworks. Then tailor your promos and creatives to local rivalries and storylines. A targeted approach will outperform generic, nationwide campaigns every time.
2. Lean Into Prop Bets and DFS
American bettors love player props and DFS lineups. Traditional match-winner bets? Not so much.
Formats like PrizePicks and Underdog—where users build lineups around individual player performances—are hugely popular during the tournament.
As a European affiliate, your job is to make this stuff feel accessible. Create simple explainer content: short videos, infographics, social posts that show new users how these products work. Highlight low-stakes, fun entry points like “build your perfect bracket” or “daily player picks.”
This type of educational content works especially well with first-time US bettors who are downloading apps specifically for March Madness.
3. Ride the Bracket Timeline
March Madness has a natural content rhythm. Use it.
- Selection Sunday: Start building hype the moment the 68-team bracket is revealed.
- Daily coverage: Follow the tournament as it moves through the First Four, Round of 32, Sweet 16, Elite Eight, and Final Four.
Set up a simple content calendar. Post daily—articles, videos, social updates—highlighting key matchups, upsets, and betting angles. The constant stream of games gives you fresh hooks every single day. That’s a luxury European affiliates rarely get.
4. Get Compliance Right from Day One
This is where European affiliates can trip up. US rules vary significantly by state, and mistakes can be expensive.
Some states restrict certain promotions, advertising methods, or bonus structures. And the vertical you’re promoting changes the rules entirely. DFS, for example, requires a completely different vocabulary than traditional sports betting to stay compliant. You have to use terms like “picks” instead of “bets,” and “more/less” instead of “over/under.”
The smart move? Set up systems that automatically serve the correct offers, creatives, and links based on the user’s location. Work with partners who already handle state-by-state compliance so you can focus on driving traffic instead of worrying about legal risks.
Get this foundation right early, and you’ll avoid costly shutdowns while building trust with both users and operators.
Final Play
March Madness isn’t just another event. It’s one of the highest-converting launch windows into the US market. For European affiliates willing to bridge the cultural gap and navigate the regulatory landscape, this tournament can mark the start of a profitable, long-term presence in the world’s most dynamic sports betting market.
The games are already tipping off. Time to get in the game.