A track is a pathway that usually leads to a destination. Staying on track means acting or progressing in a way that is likely to result in absolute success. In athletic events such as a track race, it is required you stay in the portion or mark alloted to you by the referee, and cover the distance required of you.

In like manner, life is a race. Running a race on someone else's mark for a win is a waste of time. So, even if you come first on someone else's mark, you will not be awarded the medal because you have broken the rule of sports! You can only win your own race, not someone else's race.