It is not uncommon to see a much lighter and shorter athlete facing a much bigger and taller opponent in Brazilian Jiu Jitsu and grappling.
Brazilian Jiu-Jitsu is a martial art created for smaller practitioners to defeat bigger, stronger, and taller opponents. Royce Gracie was able to prove it in the early UFC events.
Of course, you will need superior technique, the right tactics, insights, and useful strategies to beat the bigger opponents
Here is a great example: a 250lb bodybuilder facing a 150lb Matheus Gabriel who is a world champion purple belt, a few years ago.
Gabriel is now a BJJ black belt.
