you can imagine the pressure the 15-year-old girl must have been feeling. >> yeah, and she had been stumbling earlier this week as well in her performances. let's continue with this story and the situation because it is bringing up another olympic controversy from the summer games, track star sha'carri richardson, she questioned the difference between her situation and that of valiyeva's, saying her mother died and i can't run and was also favored to place top three, the only difference i see is i'm a black young lady. coy, that garnered a lot of headlines. ioc now responding. what did they say? >> reporter: one thing to note, a major difference between the cases is that richardson accepted the results, she did not try to appeal the findings. that was not the case with valiyeva who appealed the results multiple times, once when the anti-doping agency lifted her suspension and now at