Trainer Rank VS Encountered Pokemon Level (by Evo Stage and Hearts Required to Catch

[fast vale]

So i think it is a tighter trend based on the hearts required rather than evo stage, thought both are still close. I started to notice deviation when I caught a few butterfrees and they were kinda throwing things off and that is when I started looking into hearts required to catch

[timid tinsel]

So if legendaries ect require a bunch of hearts, we're more likely to catch them at a higher level