How 16 motorsport series grew their audiences

The global sports industry generated $521B in revenue in 2024, and Morgan Stanley estimates it could add another $130B by closing a digital gap most organisations haven't seriously addressed - only 30% of sports companies use technology to personalise their marketing, compared to 92% in retail.

Several motorsport properties have done genuinely impressive things over the last eight years, but there's a pattern running through everything that worked and everything that didn't. Reach was free, but the relationship wasn't, and almost nobody went back to build the second part.

Here's what the data from 16 series over roughly eight years actually shows.

F1 entered 2017 with 18.7 million social followers and a policy that actively discouraged teams and drivers from posting. Liberty reversed every restriction, and by 2025, F1 had 114.5 million followers — a 512% increase. YouTube highlights of a single race weekend were hitting 13 million views inside a week, and an Octagon study found 81% of new F1 fans aged 16–30 discovered the sport via YouTube.

The growth didn't start when Liberty spent more money. It started the day the content was unlocked.

WRC reached 1.3 billion social video views in 2025 through its Red Bull Media House partnership - up 72% year-on-year. SRO Motorsports streamed every race, qualifying session, and support event free on YouTube and Twitch, and total spectator attendance grew 414% since 2021. BTCC became the first motorsport series to live-stream a full season on TikTok in 2024, then moved global coverage to YouTube in 2025.

Both SRO and BTCC earn their revenue through sponsorship and manufacturer support rather than broadcast fees. They made a deliberate choice to treat reach as the product they sell to commercial partners — not something to protect behind a paywall.

Formula E proved what happens when you go the other way. Season 10 moved behind a TNT Sports paywall in the UK and stagnated. Season 11 returned to ITV free-to-air, and the São Paulo opener delivered 120% higher UK viewership immediately, with the same pattern repeating across Germany and France. The paywall didn't protect revenue. It destroyed the audience, and the series spent a full season buying it back.

IndyCar placed all 17 races on FOX broadcast in 2025. Season average viewership hit 1.362 million, up 27%, and the most-watched season in 17 years. The Indy 500 drew 7.01 million viewers, up 41%, with 18-to-34 viewership up 81%. FOX then bought a one-third stake in Penske Entertainment, directly aligning broadcaster incentives with series growth.

NASCAR ran the opposite experiment at the same time. Its $7.7B media deal spread Cup Series races across FOX, NBC, Amazon Prime, and TNT — and full-season viewership dropped 14% to its lowest average ever. Meanwhile, NASCAR's Xfinity Series, which consolidated onto CW as a single network, grew 11% in the same year.

Fans don't chase content across four platforms. They drop off. Every additional subscription you require is a barrier you've chosen to put between your product and your audience, and the broadcast fees that look good on the balance sheet don't reflect the audience attrition until it's too late.

MotoGP added sprint races to every weekend in 2023. Saturday TV audiences jumped 51%, overall weekend viewership rose 20%, and Sunday main race viewership also climbed 20% - the sprints didn't cannibalise the main event, they added to it. By 2025, sprint viewership was still up 26% year-on-year.

The key distinction from F1's version is that MotoGP applied sprints to every round. Fans knew what they were getting every weekend. Sponsors could build activations around a predictable schedule. Broadcasters could plan consistent programming. Structural changes compound in a way that one-off experiments don't.

Supercars introduced a Finals Series playoff format in 2025 and Kayo streaming grew 42%, Foxtel viewing grew 30%, and the Bathurst 1000 posted its biggest free-to-air audience since 2016. The format manufactured late-season commercial interest the series hadn't had in years - exactly the kind of inventory that justifies premium sponsorship pricing.

NASCAR built a quarter-mile oval inside the LA Memorial Coliseum in 2022. TV viewership was up 168%, and two-thirds of the 50,000 attendees had never attended a NASCAR race. The Chicago Street Race in 2023 drew 4.795 million viewers - NBC's most-watched NASCAR race in six years, with 70% of attendees first-timers.

Both events faded as they repeated. Viewership fell each year, and the move to cable accelerated the decline.

The format proved the concept. The distribution killed the follow-through. If the underlying product and access aren't right, a one-time event brings people in through the front door and lets them walk straight out the back.

The Le Mans Hypercar era is the clearest example of regulation design driving audience growth. Dual-pathway regulations cut the cost of entry, the Hypercar grid grew from six entries in 2022 to 19 in 2024, and the 2023 centenary drew 325,000 spectators and 113 million global TV viewers — a 150% increase. WEC docuseries' viewership grew from 8,500 per episode in Season 1 to 300,000+ per episode in Season 3.

DTM nearly disappeared entirely before ADAC switched to GT3 regulations, attracted nine manufacturers, and grew total attendance 19.6% in two years to 516,500 in 2025, with one-third of attendees under 16 and over half attending as families.

Manufacturer participation is a distribution channel along with an entry fee. Every brand that enters brings its own media spend, its own retail presence, and its own fanbase. Series that understand this design their regulations accordingly.

Sports organisations only have identifiable first-party data on 24% of their fanbase. For every four fans watching, buying merchandise, or engaging with content, three are completely invisible - no email address, no profile, nothing contactable. 62% of organisations estimated they were losing over $100,000 annually because of it, with a third putting that figure between $1M and $5M.

The sponsorship model is changing around this. 87% of organisations reported moderate to high pressure from sponsors to deliver measurable fan engagement data. 60% said at least 26% of sponsorship renewals were now tied to digital engagement or fan data delivery.

That's the number that reframes everything above. Growing an audience of anonymous viewers is a diminishing asset in a market where sponsors are increasingly paying for relationships rather than reach, and relationships require knowing who you're talking to.

The tactics that drove growth over the last eight years were almost entirely about removing barriers to access:

→ Free streaming
→ Consolidated broadcasts
→ New venues
→ Lower ticket prices

All of it optimised for volume.

The next phase is converting that volume into something sponsors can actually measure. The series spending the next 12 to 24 months building CRM infrastructure, membership models, and direct-to-fan platforms isn't just improving their data hygiene. They're building for a commercial environment where reach alone is no longer what you can sell.

The series that grew by removing barriers now needs to build the infrastructure to know who showed up. The ones that do it first won't just have more fans. They'll be able to prove it.