Will this Tyrogue become a Hitmontop?
Tyrogue evolves at level 20: into Hitmonlee if its Attack beats its Defense, Hitmonchan if the reverse, and Hitmontop only if the two are exactly equal. Read both values off its summary, before any battle, and this says whether Hitmontop is still reachable, at which level, and at the cost of how many vitamins.