AP photo by Darron Cummings / Gabe Wilkins walks away from his car at Gas City I-69 Speedway on sunday in Gas City, Ind.

GAS CITY, Ind. — The roaring engines and flying dirt pellets briefly brought Gas City I-69 Speedway back to life Sunday.

It wasn't the same.

The grandstands were empty. Track organizers allowed only a few crew members per team in order to comply with Indiana's limit on social gatherings. Gabe Wilkins even brought a car with the freshly painted word "COVID" on top of his No. 19.

And despite being on center stage with nearby Indianapolis Motor Speedway still silent, everyone sensed something was missing. Seventy-five miles away, the Brickyard was devoid of a crowd, the singing of "Back Home Again in Indiana," even A.J. Foyt on its traditional race day for the Indianapolis 500.

"I went to my first Indianapolis 500 in 1969, and I love the 500," track promoter Jerry Gappens said. "So it sure hasn't felt like Memorial Day weekend. We're not the Indianapolis 500, but at least we have racing and that's a good sign."

Dirt tracks, like this one in northeastern Indiana, have served as the lifeblood of auto racing for decades. Some of motorsports' biggest stars began their careers at places like Gas City, rolling cars off haulers and working with family members in parking lots to solve problems.

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AP photo by Darron Cummings / A fan watches as cars practice on the short dirt track at Gas City I-69 Speedway on Sunday in Gas City, Ind.

Now, with the sports world revving up again, these sorts of venues could become a central component in establishing how to put fans back in the stands.

Leisure sports are leading the way with golf courses rapidly reopening, celebrity foursomes becoming all the rage and outdoors sports such as fishing, hiking and cycling surging in popularity as states relax stay-at-home orders.

One reason people flock to those sports today is that social distancing can be more easily achieved in noncontact outdoor sports.

But as Americans look for additional options to get out of their homes amid the global pandemic, auto racing offers a unique position because spacious speedways can get fans into the track while keeping them spread apart.

The already strict safety requirements in place for teams helped NASCAR return to action this past week at South Carolina's Darlington Raceway for three races, all without fans, and a stretch of four events in an otherwise empty Charlotte Motor Speedway started Sunday with the Coca-Cola 600. IndyCar plans to open its season at Texas Motor Speedway on June 6 — almost three full months later than planned — also without fans.

Short tracks play a part, too.

National Speedway Directory publisher Tim W. Frost estimates that of the 100,000 oval drivers, most of them are weekend warriors who compete on approximately 1,200 race tracks around the United States and Canada. Some are already experimenting.

The United States Auto Club entertained fans at midget car races in Tulsa, Oklahoma, on Friday and Saturday. The World of Outlaws Series followed a similar script at Federated Auto Parts Speedway in Pevely, Missouri, where recently fired NASCAR Cup Series driver Kyle Larson won Saturday night.

Organizers insist they're going strictly by the book with limited ticket sales and the implementation of social distancing.

"We'll go where we can go and do it as safely as we can," said Chris Dolack, the World of Outlaws' director of public relations. "I know we're Outlaws, but we're not going to go somewhere and break some law."

Gas City even postponed its first scheduled test for two weeks to follow the state's reopening plan.

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AP photo by Darron Cummings / Andy Bishop climbs out of his car after a practice session at Gas City I-69 Speedway on Sunday in Gas City, Ind.

That didn't make drivers like 28-year-old Cole Ketcham and 42-year-old Andy Bishop happy, and it didn't help Gappens, who has already lost about 40% of his events. Recouping the money will be tough.

Not surprisingly, the two drivers were near the front of the line when it started forming 90 minutes before the track opened for three two-hour test sessions and were happy to find themselves the center of attention.

"We're pretty much not in the spotlight any other day of the week, so why not?" Ketcham said. "All I've been doing is getting ready to race this season. It feels like it's been about two offseasons now."

If the state's five-stage plan proceeds as hoped, Indianapolis Motor Speedway could host the first major events in front of crowds — three races including the Cup Series' Brickyard 400 scheduled for July 4-5.

It would be a stark contrast to Sunday, when five IndyCar drivers biked around the 2.5-mile oval.

Chip Ganassi Racing teammates Marcus Ericsson and Felix Rosenqvist, both from Sweden, took it a step further by waking up early and cycling 20 miles to the track on a warm, sunny, quiet morning without much traffic. Ericsson enjoys cycling so much he rides three times a week and made a four-hour jaunt Friday, when Indy usually holds its final practice on what is known as Carb Day.

He'd rather be doing his job.

"It's strange, especially when the weather is perfect. It's a perfect day for the 500," Ericsson said. "It's sad in a way, but it's still nice to be here."

He expects to return for IndyCar's July 4 race on Indy's road course and definitely plans to be back for the rescheduled 500 on Aug. 23.

But until the fans return, nothing's going to feel normal.

"I guess you can run the scenarios though your mind, but until you run through that situation (without fans), you don't know," Bishop said. "The thrill of victory is to hear the hoots and hollers and boos from the fans. That to me is worth more than a trophy."