Antonio Perez / baiduhaiSpectators watch thousands of runners participate in the Bank of America Chicago Marathon on Oct. 7, 2018.
Antonio Perez / baiduhaiSpectators watch thousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Abel Uribe / baiduhaiThousands of runners make their way to mile 19th, just before 18th Street in Pilsen during the Bank of America Chicago Marathon, Sunday Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Oct. 7, 2018.
Erin Hooley / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiWheelchair racers zoom down Columbus Ave. as they participate in the Bank of America Chicago Marathon on Oct. 7, 2018.
Abel Uribe / baiduhaiMadison De Rozario crosses the 20th mile mark during the Bank of America Chicago Marathon 2018 race, Sunday Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners speed by during the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiA spectator holds up a sign as thousands of runners participate in the Bank of America Chicago Marathon on Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiMen compete in the wheelchair race during the Bank of America Chicago Marathon on Oct. 7, 2018.
Antonio Perez / baiduhaiSpectators watch thousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
E. Jason Wambsgans / baiduhaiAnthony Brown and the Chicago Spirit Brigade cheer runners along North Broadway in Lakeview neighborhood during the Chicago Marathon, Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Abel Uribe / baiduhaiSarah Shaaban reaches out to hug coworker David Keys, who approaches Mile 19 in Little Italy during the Bank of America Chicago Marathon, Sunday Oct. 7, 2018.
Erin Hooley / baiduhaiBrigid Kosgei from Kenya wins the Bank of America Chicago Marathon with an official time of 02:18:35 on Sunday, Oct. 7, 2018.
Erin Hooley / baiduhaiSwitzerland's Manuela Schär wins the women's wheelchair marathon in an unofficial time of 01:41:38 during the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners, including a man in a chicken costume, participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Erin Hooley / baiduhaiRunners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez/baiduhai / baiduhaiA runner high fives a spectator as thousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiWheelchair racers participate in the Bank of America Chicago Marathon on Oct. 7, 2018.
Erin Hooley / baiduhaiA Chicago police officer waves at thousands of runners participating in the Bank of America Chicago Marathon on Oct. 7, 2018.
Erin Hooley / baiduhaiMo Farah of Britain is greeted by his wife, Tania Nell, after winning the men's race in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiSpectators watch thousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiOfficials patrol among spectators during the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
E. Jason Wambsgans / baiduhaiDean Furness pushes down Clark Street during the Chicago Marathon, Sunday, Oct. 7, 2018.
Erin Hooley / baiduhaiMo Farah from Great Britain wins the Bank of America Chicago Marathon with an official time of 2:05:11 on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiSpectators watch thousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Abel Uribe / baiduhaiAfter the elite runners, the first mass group of the thousands running head east on Cermak under 90-94 on their way to Chinatown during the Bank of America Chicago Marathon 2018 race, Sunday Oct. 7, 2018.
Antonio Perez / baiduhaiLeaders of the pack run along Columbus as thousands of runners participate in the Bank of America Chicago Marathon on Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Erin Hooley / baiduhaiShure Demise of Ethiopia falls to the ground as she finishes third in the women's race in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Erin Hooley / baiduhaiPeople compete in the wheelchair race during the Bank of America Chicago Marathon on Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Erin Hooley / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Oct. 7, 2018.
E. Jason Wambsgans / baiduhaiDominic Fitzgerald and runners push through the rain on Broadway in the Lakeview neighborhood during the Chicago Marathon, Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiSpectators watch as thousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Armando L. Sanchez / baiduhaiAfter running for less than an hour, a group passes mile 11 while traveling east on North Avenue during the Bank of America Chicago Marathon on Sunday Oct. 7, 2018.
Erin Hooley / baiduhaiPeople compete in the wheelchair race during the Bank of America Chicago Marathon on Oct. 7, 2018.
Antonio Perez / baiduhaiA tandem pair participates in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Erin Hooley/baiduhai / baiduhaiBrigid Kosgei from Kenya wins the Bank of America Chicago Marathon with a time of 02:18:35 on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiA spectator high fives a runner as thousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiSpectators watch thousands of runners participate in the Bank of America Chicago Marathon on Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Oct. 7, 2018.
Antonio Perez / baiduhaiPolice motorcycles escort runners during the Bank of America Chicago Marathon on Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiSpectators watch as thousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Abel Uribe / baiduhaiElite runners reach Pilsen at Loomis and 17th during the Bank of America Chicago Marathon 2018 race, Sunday Oct. 7, 2018.
Erin Hooley / baiduhaiMo Farah from Great Britain wins the Bank of America Chicago Marathon with an official time of 2:05:11 on Sunday, Oct. 7, 2018.
Erin Hooley / baiduhaiBrigid Kosgei of Kenya wins the women's race in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
E. Jason Wambsgans / baiduhaiDiana Ngo pushes through the rain on Broadway in the Lakeview neighborhood during the Chicago Marathon, Sunday, Oct. 7, 2018.
Abel Uribe / baiduhaiA priest from St. Procopius Catholic Church stepped outside to cheer as thousands of runners make their way through 18th Street in Pilsen during the Bank of America Chicago Marathon, Sunday Oct. 7, 2018.
Antonio Perez / baiduhaiSpectators watch thousands of runners participate in the Bank of America Chicago Marathon on Oct. 7, 2018.
Antonio Perez / baiduhaiSpectators watch thousands of runners participate in the Bank of America Chicago Marathon on Oct. 7, 2018.
Abel Uribe / baiduhaiFamilies cheer the thousands running make their way to Chinatown during the Bank of America Chicago Marathon 2018 race Sunday Oct. 7, 2018
Erin Hooley / baiduhaiShure Demise of Ethiopia falls to the ground as she finishes third in the women's race in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
E. Jason Wambsgans / baiduhaiLaura Maslanka runs through the rain on Broadway in the Lakeview neighborhood during the Chicago Marathon, Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiA woman watches as thousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez/baiduhai / baiduhaiMen compete in the wheelchair race during the Bank of America Chicago Marathon on Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Armando L. Sanchez / baiduhaiRunners travel east on North Avenue after passing mile 11 during the Bank of America Chicago Marathon on Sunday Oct. 7, 2018.
Abel Uribe / baiduhaiA runner takes a cup of water from a Cristo Rey High School student on Canalport Avenue during the Bank of America Chicago Marathon 2018 race, Sunday Oct. 7, 2018.
Antonio Perez / baiduhaiA runner high fives a spectator as thousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Erin Hooley / baiduhaiMo Farah of Britain is greeted by his wife, Tania Nell, after winning the men's race in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Oct. 7, 2018.
Erin Hooley / baiduhaiMosinet Geremew Bayih of Ethiopia sits on the ground after finishing second in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
E. Jason Wambsgans / baiduhaiSpectators urge runners on Broadway and Grace in the Lakeview neighborhood during the Chicago Marathon, Sunday, Oct. 7, 2018.
Erin Hooley / baiduhaiSarah Crouch of the United States falls to the ground as she finishes the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Abel Uribe / baiduhaiA young woman motivates thousands of runners as they make their way through 18th Street in Pilsen during the Bank of America Chicago Marathon, Sunday Oct. 7, 2018.
Antonio Perez / baiduhaiSpectators watch thousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Erin Hooley / baiduhaiMo Farah, left, of Great Britain, grabs the hand of Mosinet Geremew of Ethiopia after Geremew finished second at the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Abel Uribe / baiduhaiLaureano Galan and other Pilsen residents cheer as thousands of runners make their way through 18th Street in Pilsen during the Bank of America Chicago Marathon, Sunday Oct. 7, 2018.
E. Jason Wambsgans / baiduhaiRunners push through the rain on Broadway in the Lakeview neighborhood during the Chicago Marathon, Sunday, Oct. 7, 2018.
Erin Hooley / baiduhaiManuela Schar of Switzerland wins the women's wheelchair race in the Bank of America Chicago Marathon Sunday, Oct. 7, 2018.
E. Jason Wambsgans / baiduhaiRunners push through the rain on Broadway in the Lakeview neighborhood during the Chicago Marathon, Sunday, Oct. 7, 2018.
Erin Hooley / baiduhaiPeople compete in the wheelchair race during the Bank of America Chicago Marathon on Oct. 7, 2018.
Antonio Perez / baiduhaiMen compete in the wheelchair race during the Bank of America Chicago Marathon on Oct. 7, 2018.
Erin Hooley / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Antonio Perez / baiduhaiRunners pass the Chicago Theatre as they participate in the Bank of America Chicago Marathon on Oct. 7, 2018.
Antonio Perez / baiduhaiA spectator holds up a sign as thousands of runners participate in the Bank of America Chicago Marathon on Oct. 7, 2018.
Armando L. Sanchez / baiduhaiA runner carries American and Mexican flags while traveling east on North Avenue after passing mile 11 during the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Erin Hooley / baiduhaiDaniel Romanchuk, a 20-year-old from Champaign, wins the men's wheelchair marathon in an unofficial time of 1:31:34 during the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Erin Hooley / baiduhaiRunners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Armando L. Sanchez / baiduhaiRunners travel east on North Avenue after passing mile 11 during the Bank of America Chicago Marathon on Sunday Oct. 7, 2018.
Erin Hooley / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Oct. 7, 2018.
Antonio Perez / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Erin Hooley / baiduhaiThousands of runners participate in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Erin Hooley / baiduhaiBrigid Kosgei of Kenya wins the women's race in the Bank of America Chicago Marathon on Sunday, Oct. 7, 2018.
Abel Uribe / baiduhaiAfter the elite runners, the first mass group of the thousands running cross the Chicago river on their way to Chinatown during the Bank of America Chicago Marathon 2018 race, Sunday Oct. 7, 2018.
Mo Farah, the four-time Olympic gold medalist who won the 2018 Bank of America Chicago Marathon, will defend his title at this year’s race on Oct. 13.
Marathon officials also announced that American Galen Rupp, who won the 2017 race, will return.
Jordan Hasay, who became the fastest American woman to finish the Chicago Marathon with a time of 2:20:57 in 2017, also will be in the field.
In the wheelchair race, defending champions Daniel Romanchuk and Manuela Schar are returning.
“We are thrilled to have so many champions in this year’s field,” marathon director Carey Pinkowski said in a statement. “Mo is an Olympic champion and he put on quite a show here last year, and we are excited that Galen has chosen the Bank of America Chicago Marathon as his comeback race.”
There had been speculation that Farah would leave marathoning and return to running track. He has won four Olympic gold medals in the 5,000 and 10,000 meters.
“Winning the Chicago Marathon last year was very special for me,” said Farah, who ran the eighth-fastest time in Chicago Marathon history (2:05:11), which also set a European record. “It was my first time to win a World Marathon Major and my time was a European and British record. I am looking forward to returning in 2019 to defend my title on the streets of Chicago.”
Farah, of Britain, finished fifth in the London Marathon with a time of 2:05:39 on April 28.
For Rupp, a two-time Olympic medalist in the marathon (bronze) and 10,000 meters (silver), this will be a significant comeback. He had Achilles tendon surgery after last year’s race.
“I could not be more excited to return to a city and marathon that is so special to me,” Rupp said. “After undergoing surgery following last year’s race, I have been pouring all of my energy into my recovery and returning strong in 2019.”
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Hasay is also on the comeback trail. After the 2017 race, she shut down her 2018 season because of two stress fractures in her foot.
“I am honored to return to the streets of Chicago,” Hasay said. “I love the fast course and exciting atmosphere, which I believe can lead to an attempt at the American record.”
Approximately 40,000 runners from more than 100 countries and 50 states will fill out the race, which courses through 29 city neighborhoods.
Twitter @timbannon