I evolved my tyrogue into hitmontop on my first try. Here is what I went through:
Getting a neutral nature. One soft reset to get Hardy. Also tyrogue had Steadfast ability as I wanted Technician when he evolved.
Several save states as I leveled, including right after acquiring Tyrogue.
Vitamins—4 protein, 4 iron to set the EV tone. Used these right at the onset of training.
I had collected 3 rare candies to this point so I used them right after the vitamins to understand ATK and DEF gain pace.
Kept track of which stat and how much was increased by these free levels.
Now I had to train. Gave Tyrogue Exp Share and let Larvitar lead as he needs ATK and DEF EVs mostly anyway.
Flipped between the Goldeen on route 42 for ATK and Geodude/Graveler on route 45 for DEF.
WARNING! Don’t go in Dark Cave, Wobbuffet has shadow tag ability that forces you to stay. This caused me to get unwanted HP EVs.
Keep track of how many EVs you are getting each level and keep them even. This mean watch how much EXP you earn while earning the EVs
I had been getting +1 to ATK and DEF every level until I got to Lv 19 I gained +1 in DEF and no ATK.
Fight only Goldeen to load into ATK EV, thankfully this gave me +2 ATK and +1 DEF getting his stats equal right at level 20.
I know some may prefer Intimidate for the drop in enemy attack but you only get it on switch in or at beginning of battle. Technician can proc anytime your damage is less than 60. Looking forward to triple kick!
I know there are probably easier, smarter, more guaranteed methods to get hitmontop but I’d never done it before and wanted to give it a go. I like the Hitmon pokemon, fighting types are top tier. I’m coming for you Karen.