Brad Daugherty: Retired NBA legend Brad Daugherty never won an NBA title, so he took a route to a championship through a very different sport: NASCAR. In February, Daugherty, now the owner of a racing team, won the most important race in American motorsports – the Daytona 500 – and in doing so made NASCAR history, becoming the first Black owner to capture the circuit's top prize. Correspondent Jonathan Jones reports. Producer: Evan Burgos.Iranian Athletes: Iranian athletes have been among the most high-profile protesters calling for regime change in their home country, consequently putting targets on their backs as the government views them as a threat to stability. As several athletes and families have told "Real Sports," the regime's crackdown has been brutal: imprisoning many, torturing others, and even executing those they deem the biggest threats. Correspondent David Scott reports. Producer: Nisreen Habbal.Special Olympics - Triathlon Edition: There's a group of Special Olympics athletes in Florida who are using their triathlon training to change their lives. Led by Chris Nikic, the first person with Down Syndrome to complete an Ironman, this group of young adults is breaking down physical barriers and social stigmas to achieve athletic feats that many thought impossible. Correspondent Mary Carillo reports. Producer: Beret Remak.Victor Vescovo (Update): In the wake of the OceanGate Titan submersible tragedy, "Real Sports" checks in with Victor Vescovo, an explorer who had built his own deep-sea submersible in 2018. Vescovo, who lost two friends in the accident, believes the tragedy was avoidable and that early warning signs about safety were ignored. Correspondent Bryant Gumbel reports. Producers: Nisreen Habbal, Daniel Litke.