Quite a lot. I've been at it for about two and a half years now and know pretty much all the most common techniques, sweeps, chokes, joint manipulations, etc. You actually learn most of that stuff as a white belt. When you start piecing it all together and developing your own game out of it is when you begin to ascend to the next level. I feel comfortable in basically any position now and know that I have attacks and defenses from pretty much any place I am fortunate or unfortunate enough to get stuck in.so Kev, how much have you learned so far?
One of my instructors is a blue belt in a similar scenario. He started jiu-jitsu like 15 years ago with a couple friends. He got his blue belt after only 3 months (he's former college wrestler so he had the top game down already and picked everything else up super fast). While a blue belt, he stopped training formally off and on over the years, but always improved and got better. He's easily at the skill level of a purple belt now but he just hasn't put in the time with a real black belt instructor that can actually test and analyze his game and decide he's ready for the next belt. Things like that take time and he doesn't have much. I also don't think he really cares. Every single person in our gym knows he's better than his belt color anyways so it truly doesn't matter that much.he's a bluebelt which is the same as the teacher at my gym (although I think my teacher has been doing it for a ridiculously long time and just not upgraded) so I assume he is a deadly beast