Ilustre ran in the fourth heat of the 800 metres in Rio. An hour after the race he learned that he had been disqualified for a lane violation. His coach Derek Mandell submitted an appeal, but after a 12 hour wait learned it was unsuccessful. Mandell believed that video evidence showed the infraction was unclear, but a panel of judges upheld the decision. He finished with a time of 1:58, and his personal best was 2:01, however due to the disqualification his personal record stayed at 2:01. Since Ilustre finished last in his heat, there would have been no change in circumstances had he not been disqualified, and he wanted his personal record to count.