Michael Guidotti will have his driver’s license on him when he runs the Chicago Marathon, just as he did during every training run since summer.

After the Trump administration escalated its immigration crackdown in the city, runners like Guidotti, 31, are worried they could become a target during Sunday’s race.

“Just knowing that I do come from a Hispanic background and also that I am somewhat darker, and that these individuals do seem to be targeting people of that demographic as well,” Guidotti said. “So it’s just an extra precaution that I’m taking that I have my driver’s license with me at all times.”

Questions have been swirling for weeks over whether Immigration and Customs Enforcement agents might target the marathon, which draws thousands of runners from around the world each year. Reflecting the unease, event organizers sent an email to participants Wednesday that referred to an immigration “Know Your Rights” page on the city’s website.

An ICE spokesperson said in an email to The Associated Press that ICE does not conduct immigration operations at sensitive locations like public events, unless there are exigent circumstances.

“It’s absolutely ridiculous to ascertain that ICE would conduct immigration enforcement to intentionally disrupt the Chicago marathon,” the spokesperson said in an email. “These are the kind of rumors that fan the flames of dissent and result in unwarranted and dangerous riots like those in Portland, Chicago and Los Angeles.”

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When asked whether its officers might target the marathon, Customs and Border Protection, which has also been highly active during the immigration crackdown, was noncommittal, saying that people in the country legally need not worry.

Such assurances might not calm the fears of some participants, though.

Asked last week by a podcaster whether there would be “ICE enforcement” at the Super Bowl in February in California, Kristi Noem, who runs ICE’s and CBP’s parent agency, the Department of Homeland Security, said immigration officers would be “all over” the event.

Homeland Security Secretary Kristi Noem speaks during a roundtable meeting with President Donald Trump on antifa in the State Dining Room at the White House, Wednesday, Oct. 8, 2025, in Washington. (AP Photo/Evan Vucci)

Homeland Security Secretary Kristi Noem speaks during a roundtable meeting with President Donald Trump on antifa in the State Dining Room at the White House, Wednesday, Oct. 8, 2025, in Washington. (AP Photo/Evan Vucci)

The Chicago Marathon is a major tourism draw for the city and one of the biggest races in the U.S., with 52,150 finishers last year. There were 15,000-plus international participants in 2024, according to race organizers, who didn’t respond to requests for comment. Among foreign countries, Mexico was best represented, with 3,790 participants. It was followed by the U.K. (2,814), Canada (2,442) and Brazil (1,811).

The course winds through 29 neighborhoods, and more than a million people line the streets to support the runners.

FILE - Competitors race down State Street during the 45th annual Chicago Marathon, Oct. 8, 2023. (Trent Sprague /Chicago Tribune via AP, File)

FILE - Competitors race down State Street during the 45th annual Chicago Marathon, Oct. 8, 2023. (Trent Sprague /Chicago Tribune via AP, File)

“I’m absolutely sure that people are going to stay home,” he said. “There’s street vendors that aren’t out on the street doing their sales that impact their life. I’m sure they’re also going to be able to cut off recreational activities like cheering on runners.”

Rivera said his club is encouraging runners to stay informed, keep a list of important contacts on hand, and run in groups. Some club members have discussed what documentation they should bring.

“There is something in the air that says, ‘No, it doesn’t feel right,’” he said.

Critics say the immigration crackdown, which has swept up people who are legally living in the country, including U.S. citizens, is a sweeping government overreach, and that ICE engages in racial profiling.

Participant Amar Shah, 31, said that even though he was born and raised in the Chicago suburbs, he’s worried that his Indian heritage could make him vulnerable.

“I shouldn’t have any concerns from a legality standpoint, but I am a brown man. I have a beard,” he said. “I could be seen as someone who fits the stereotype of folks who are being targeted right now.”

Michael Rodriguez, the alderman for Chicago’s 22nd ward, which is home to a large Latino community, said businesses are “hurting” amid concerns about ICE, and this year’s race may bring less economic activity to the city than usual.

“I’m worried about those hundreds, maybe thousands of individuals from out of town, who come from internationally and throughout the nation to run,” Rodriguez said. “The hotel rooms they stay in, the restaurants they dine in, the money they spend in our city is going to be negatively impacted.”

“Some people might not come, others may choose not to spend their money,” he said.

Mayor Brandon Johnson expressed confidence this week that the marathon would go off without a hitch, noting that roughly 3,000 runners from Mexico have signed up, “and I want them all to come.”

“I feel strongly about our ability to be able to hold large-scale events, and the strategic security measures that we’re putting in place are to ensure we continue to hold a reputation of hosting large-scale events,” the mayor said.

This story was first published on Oct. 10, 2025. It was updated on Oct. 14, 2025, to correct that an ICE spokesperson did not say that rumors of ICE agents at the marathon were false. The spokesperson said ICE does not conduct immigration operations at sensitive locations, such as public events, unless there are exigent circumstances.

Associated Press writers Jay Cohen in Chicago and Scott Bauer in Madison, Wisconsin, contributed to this report.