IndyCar’s latest expansion idea, bringing a street race to downtown Denver centered around Mile High, has quickly sparked a familiar mix of nostalgia, skepticism, and cautious optimism. But beneath the surface, the conversation reveals something more important: a series increasingly defined not just by racing, but by how well it can build events around it.
A Return to Familiar Ground, But Not the Same Circuit
For longtime fans, the immediate comparison is obvious. The street circuit that once ran around the Pepsi Center (now Ball Arena) in the early 2000s is still remembered as a legitimately strong layout, one that delivered both racing quality and a proper urban backdrop.
That option, however, appears to be off the table.
With the Ball Arena parking lots being redeveloped into a mixed-use district, the series is effectively forced to rethink how a Denver race would function. Instead, attention has shifted toward areas like Auraria and Speer Boulevard, locations that could support a modern street circuit, albeit with real-world tradeoffs like significant disruption to daily city life.
The appetite for a Denver race is clearly there. The question is whether the new layout can match the quality, and identity, of what came before.
Stadium-Centric Racing Is the New Playbook
What makes the Mile High concept notable isn’t just the location, it’s the strategy behind it.
IndyCar’s recent moves suggest a clear pivot: races are no longer being positioned as standalone sporting events, but as integrated entertainment experiences. That shift has been visible in markets like Nashville and Arlington, where the emphasis has moved toward creating full-scale “event weekends” rather than simply hosting a race.
There’s growing recognition that this approach isn’t optional—it’s necessary.
The underlying critique is blunt: IndyCar historically leaned toward a “host a race and hope it works” mentality, whereas earlier eras like CART were more aligned with building full experiences first and letting the race complement it. The current leadership appears to be correcting that imbalance.
And in Denver, the ingredients are there.
The Power Behind the Project
Any serious attempt to bring IndyCar to Mile High comes with one major advantage: ownership backing.
The Walton-Penner group, which owns the Denver Broncos, brings a level of financial firepower that fundamentally changes the viability of a project like this. Calling their resources “deep” barely scratches the surface, this is the kind of ownership group capable of underwriting not just a race, but an entire entertainment district strategy around it.
That matters, because modern street races are infrastructure-heavy, politically complex, and financially risky. Without strong local partners, they tend to collapse under their own weight.
Denver, at least on paper, doesn’t have that problem.
Designing a Circuit Around the Future
One of the more intriguing aspects of the proposal is its long-term potential.
Unlike Nashville, where stadium construction forced IndyCar into reactive changes, Denver presents an opportunity to plan proactively. With a new Broncos stadium expected to be built in a different location, there’s a realistic scenario where future infrastructure could be designed with a race circuit in mind from the outset.
That opens the door to something IndyCar rarely gets: a purpose-built street circuit ecosystem.
The idea of integrating paddock areas, fan zones, and viewing spaces directly into stadium-adjacent development isn’t just theoretical, it’s increasingly becoming the benchmark for successful urban races. If executed correctly, Denver could become a model rather than an experiment.
The Challenge: Momentum and Consistency
Still, enthusiasm is tempered by recent history.
Nashville remains the cautionary tale, an event that initially built strong momentum before losing direction. For many, the lesson is clear: launching a race is only half the battle. Sustaining it requires long-term commitment, consistent promotion, and strategic continuity.
That’s where Arlington is now being positioned as a potential turning point, a sign that the series may finally be learning how to execute these events properly.
Denver, if it moves forward, will be judged against that evolving standard.
Too Many Street Circuits?
Not everyone is convinced this is the right direction.
There’s a growing sentiment that IndyCar’s calendar is becoming oversaturated with street courses, raising concerns about identity dilution. When the schedule begins to feel dominated by temporary circuits, the uniqueness of each event, and of the championship itself, can start to blur.
Some fans even frame it more bluntly: a future where the Indy 500 stands alone as the centerpiece, surrounded by an increasingly homogeneous set of street races.
At the same time, others see opportunity in variety, suggesting rotating city events, limited-run street races, or even broader national expansions to keep the calendar fresh without overcommitting to any single market.
The tension between expansion and overexposure is very real, and Denver sits directly at that intersection.
An Unrevealed Layout, and Controlled Expectations
For now, much of the speculation remains just that.
A rumored 1.8-mile layout has been referenced, but no official design has been released. That absence is deliberate. There’s a clear understanding that revealing too much too early risks setting expectations the final product may not meet.
In that sense, IndyCar appears to be taking a more measured approach, prioritizing execution over hype.
The Bigger Picture
What’s unfolding in Denver isn’t just about adding another race. It’s a reflection of where IndyCar is heading.
The series is increasingly aligning itself with a model where races must function as multi-day, multi-purpose entertainment platforms, supported by strong local ownership, integrated infrastructure, and long-term planning.
Denver checks many of those boxes. But as recent history has shown, checking boxes isn’t enough.
Execution will determine whether Mile High becomes a cornerstone event, or just another missed opportunity in a crowded street race landscape.