Tyrogue evolves into Hitmontop if its attack and defense stats are equal. Tyrogue evolves after hitting level 20, which every wild Tyrogue in The Indigo Disk will be far above.

Tyrogue will evolve at Level 20 into either Hitmonlee, Hitmonchan, or Hitmontop. However, the Pokemon it evolves into changes depending on your Tyrogue’s stats.