FILE - Allyson Felix of the United States reacts after winning the gold medal in the final of the Women's 200m during the World Athletics Championships in Berlin, Friday, Aug. 21, 2009. Felix, retiring after the 2022 world championships in Eugene, Oregon, is looking forward to a much slower pace. (AP Photo/Michael Probst, File)

FILE - United States' Allyson Felix, second from right, crosses the finish line to win gold ahead of Jamaica's Shelly-Ann Fraser-Pryce, right, in the women's 200-meter final during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Wednesday, Aug. 8, 2012. On the homestretch toward her retirement, Felix found herself in a reminiscing sort of mood. Back to the time when she was just a shy 17-year-old sprinting prodigy, with Olympic and world-championship medals galore still on the horizon. (AP Photo/Matt Dunham, File)

FILE - Allyson Felix of Los Angeles Baptist High School salutes the crowd after running 22.52 seconds in the 200 meters to break Marion Jones' state record of 22.71 in the CIF State track and field championships at Cerritos College in Norwalk, Calif., on Saturday, June 7, 2003. Her 18 medals are the most in world-championship history. She's looking forward to a slower pace to life. That includes running her own shoe company, being a voice for women's rights and taking her daughter to soccer practice. (Kirby Lee/The Daily Times Call via AP, FIle)

FILE - United States' Allyson Felix crosses the line to win gold in the women's 4x400-meter final during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil, Saturday, Aug. 20, 2016. On Friday, July 15, 2022, in a 4x400 mixed relay, Felix will bid adieu once and for all to the track scene. (AP Photo/Matt Slocum, File)

FILE - United States' Allyson Felix kisses the gold medal for the women's 200-meter during a ceremony at the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Thursday, Aug. 9, 2012. On the homestretch toward her retirement, Allyson Felix found herself in a reminiscing sort of mood. Back to the time when she was just a shy 17-year-old sprinting prodigy, with Olympic and world-championship medals galore still on the horizon. (AP Photo/Matt Slocum, File)

FILE - Allyson Felix celebrates after her second place finish in the women's 400-meter run with her daughter Camryn at the U.S. Olympic Track and Field Trials, Sunday, June 20, 2021, in Eugene, Ore. Her 18 medals are the most in world-championship history. She's looking forward to a slower pace to life. That includes running her own shoe company, being a voice for women's rights and taking her daughter to soccer practice. (AP Photo/Ashley Landis, File)

FILE - Olympian Allyson Felix participates in a one-on-one discussion about maternal health hosted by Vice President Kamala Harris, at the Eisenhower Executive Office Building on the White House complex, in Washington, Tuesday, Dec. 7, 2021. Felix certainly found her speed on the track and later her voice away from it. In becoming the most decorated American sprinter of all time, she appeared before congress to talk about the Black maternal health crisis. (AP Photo/Manuel Balce Ceneta, FILE)

FILE - Allyson Felix of the United States smiles at the finish line of the women's 200-meter competition at the Golden Gala Pietro Mennea IAAF Diamond League athletics meeting in Rome, Thursday, June 9, 2022. (AP Photo/Andrew Medichini, File)

FILE - Allyson Felix of the United States celebrates with the Stars & Stripes after winning the gold medal in the women's 200 meter race at the World Athletics Championships in Helsinki, Friday Aug. 12, 2005. Felix is retiring after the world championships in Eugene, Oregon. (AP Photo/Martin Meissner, File)