I doubt it has any great relation at all. Completely different tasks, different energy systems, different requirements all together. Most people that have a hard time maintaining top speed have issues with relaxation and likely postural issues related to a poor pelvic position that is burning up huge amounts of energy during acceleration and top speed versus strength endurance (might be different if looking @ a 400m). I’d question whether the person even has great top speed as most of the time they are simply ahead because of acceleration and the differences in top speed haven’t shown until later in the race.