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TL;DR: The Big 4 leagues don’t dominate momentum anymore. LOVB, PWHL, and Unrivaled all score 70+ on The Harris Poll’s Sports Momentum Index, with affluent and Gen Z audiences indexing even higher. The 2026–2028 window – Men’s World Cup, Women’s World Cup, LA28 Olympics – is a once-in-a-generation entry point.
Download the full Sports Momentum Intelligence report to see the complete power rankings and investment matrix.
Every marketing budget has a sports line item. Most of them are pointed at the wrong sports.
The Harris Poll’s Sports Momentum Index (SMI) surveyed 2,004 U.S. adults to measure something media spend can’t: cultural currency, personal relevance, and engagement across 20+ leagues. The result reframes where sponsorship dollars actually work.
Momentum doesn’t follow media spend
The NFL, NBA, MLB, and NHL still win on reach. They don’t win on momentum.
New-format women’s leagues top the Index. LOVB scores 70.9. PWHL scores 70.1. Unrivaled scores 69.8. Each beats every legacy men’s league in the dataset.
Affluent and young households push those numbers higher still. Among $100k+ earners, LOVB hits 87.8 and PWHL hits 87.3. For Gen Z, La Liga tops the list at 88.0 – the highest Gen Z score of any league measured.
What this means for you: if your media plan chases audience size alone, you’re buying reach in leagues that already peaked on relevance.
Affluent audiences have already moved
Money moves before mainstream attention catches up. The SMI data shows exactly how far.
Compare index scores across income bands, and the gap tells the story:
- Olympics: 36-point premium gap between under-$50k and $100k+ households
- World fencing: 31.4-point premium gap
- NBA and NHL: the flattest income curves in the dataset
LOVB stands out as the exception – strong across every income band, not just the top. That’s a different kind of opportunity: broad appeal without the crowded competition of a legacy league.
The conversion opportunity most brands are missing
Awareness and ownership aren’t the same thing. The Index measures both, and the gap between them is where sponsorship dollars convert – or don’t.
The Olympics shows a 23-point gap between cultural relevance and personal relevance. Sixty-four percent of Americans are interested in LA28. Far fewer feel personally connected to it yet.
That gap is the opportunity. A big cultural footprint with low personal ownership means a single catalyst – a home-soil Games, a breakout athlete, a brand campaign – can convert millions of aware-but-uncommitted fans into owned audience.
Compare that to LOVB or PWHL, where the cultural-relevance and personal-relevance scores sit close together. Fans there already own the sport personally. There’s less conversion upside, but the engagement is deeper and the audience is already loyal.
Both plays matter. They just require different strategies and different budgets.
A three-year super cycle starts now
2026 through 2028 stacks three tentpole events: the Men’s World Cup, the Women’s World Cup, and the LA28 Summer Olympics.
Half of Americans already call this the most anticipated stretch of sport in the next three years. Thirty-nine percent are interested in the Women’s World Cup – before the Men’s tournament has even finished. Fifty-one percent noticed brand activity around the World Cup already.
Brands that build audience relationships in 2026 don’t just win one event. They compound across three.
Where you fit on the investment matrix
The Harris Poll SMI report maps every league in the dataset against two variables: audience quality and conversion opportunity. That matrix sorts every property into one of four plays:
- Ownership sports – high engagement, low clutter, premium demographics
- Conversion plays – high cultural footprint, low personal claim, ready for a catalyst
- Reach plays – mass audience, bought for scale rather than momentum
- Broad awareness plays – culturally visible, personally passive, no near-term catalyst
Knowing which quadrant a league sits in changes how you brief the campaign, not just where you buy the media.
The full Sports Momentum Intelligence report breaks down the complete power rankings, the three-cluster audience overlap model, and the full investment matrix across 20+ leagues – everything you need to brief a 2026 sports sponsorship strategy with data instead of guesswork.
Frequently asked questions
What is the Sports Momentum Index? The Sports Momentum Index (SMI) is The Harris Poll’s measure of cultural currency, personal relevance, and engagement across major and emerging sports leagues, based on a survey of 2,004 U.S. adults.
Which leagues score highest on momentum right now? LOVB, PWHL, and Unrivaled lead the Index, each scoring 70 or above – ahead of every Big 4 legacy league.
Why does the Olympics show such a large relevance gap? Sixty-four percent of Americans are interested in the LA28 Olympics, but personal relevance lags cultural relevance by 23 points. That signals a large pool of aware-but-uncommitted fans still waiting for a reason to convert.
About the research
This article draws on The Harris Poll Sports Momentum Index, Wave 323, conducted April 30–May 2, 2026, among 2,004 U.S. adults aged 18+, weighted to be representative of the U.S. general adult population on age, sex, race/ethnicity, region, education, marital status, household size, and household income. World Cup findings come from a Harris Poll survey conducted May 7–9, 2026, among 2,148 U.S. adults. Results carry a Bayesian credible interval of ±2.4 percentage points at 95% confidence.
