javascript - How to write a racing animation so that it can run more realistically?

Question

For example, if 10 athletes run a race, the result is actually predetermined, but the chasing process during the race must be controlled through a program, which is exciting. How to plan the process better?

Answer 1

10 people, the time spent by each person is fixed, so that a certain athlete can be predetermined, and then each athlete’s speed is adjusted by some random curves