Jenny Simpson speaks at a press conference in 2024.

Jenny Simpson, recognized as one of the most accomplished American middle-distance track athletes, collapsed on Tuesday in Raleigh, N.C. The incident occurred after she had been pacing a mile group during the Sir Walter Pop Up Miles event. This event took place in North Carolina, where the veteran athlete was participating in the pacing activities before the collapse happened. The reports confirm the location and the specific event where the American track star experienced this medical episode.