With all 3 IV stats being the same, you have an equal chance of any of the 3 Hitmons
QUOTE
"Tyrogue - Tyrogue can be hatched from 5K eggs. When evolving if its HP is its highest IV, it will evolve into Hitmontop. If its Attack is its highest IV, it will evolve into Hitmonlee. Finally, if its Defense is its highest IV, it will evolve into Hitmonchan. You can find out which IV is the highest from the appraise function. While we have not conducted extensive testing, we believe that when two IVs are equal, there is equal probability of both evolutions."
https://pokemongo.gamepress.gg/gen-2-evolutions-guide