For my two cent's worth..and this is a generalization, and NOT directed at YOU specifically:
As a guy who plays ranked rounds, club tournaments and h2h games, it's infuriating to run into someone with great gear, obvious skill, VERY low level and VERY low tier. It's essentially unfair to people who play all facets of the game, because at Hack and Amateur tiers, the game is stupidly easy and the holes are very short...so someone with great gear and skill hits the equivalent of a 400 yard drive on each hole to a green with very little break and a hole the size of a basketball.
I quit playing for a couple of years and came back with a new account and I literally destroyed everyone I played in h2h for a couple of weeks, but because I play ranked rounds, I tiered up to Tour Pro in about two weeks, so that domination was short-lived.
If you could play with skill and gear and Amateur Tier for years and never tier up, that would just be sanctioned sandbagging.
At least that's how it seems from observing that aspect of h2h games. I have NO idea how the game determines when people who play only h2h tier up, but I'm glad that it DOES.