This seems like a fairly bad example to compare with?
These runners do not even look like amateurs. Look how the best of the bunch still does the novice mistake of decelerating _before_ the finish line. They're just regular people asked for "let's try to run a 100m sprint". It doesn't take an Olympic champion to get a 3+ seconds lead in such competition.
The above-average track runner would look the same in this video. And the Olympic champion might have an 1s+ lead on them, which is still a lot, but not as lot as in this video (at least they will both fit in the camera).
These runners do not even look like amateurs. Look how the best of the bunch still does the novice mistake of decelerating _before_ the finish line. They're just regular people asked for "let's try to run a 100m sprint". It doesn't take an Olympic champion to get a 3+ seconds lead in such competition.
The above-average track runner would look the same in this video. And the Olympic champion might have an 1s+ lead on them, which is still a lot, but not as lot as in this video (at least they will both fit in the camera).