on top
In a powerful, successful, or advantageous position. The military ousted the president and members of parliament, and they've been on top ever since. She's been training for months because she's determined to come out on top in the race this year.
on top
In a dominant or successful position. It is also put as come out on top, as in As we expected, Paul again came out on top in the chess tournament. [Mid-1500s] Also see on top of.
on top
1. At the highest point or peak.
2. In a dominant, controlling, or successful position.