Funny how this topic arises every few weeks.
Anyhow, I was reflecting on how long it took me to earn my (Adult)
Judo Brown Belt. I started Judo at age 10-11 and completed my Brown Belt Grading at age 24ish. So what's that,
about 12 years as an 'Average' competitive primarily recreational Judoka?
I commenced BJJ in 1999 and was graded as
BJJ Purple in 2004 (i think), so that was 5 or 6 years. Added to the 5-6 years of pure BJJ training, one need take account of my prior Judo training, which was about 17 years worth upon commencing BJJ. Previously I've suggested that maybe 20% of my Judo training has directly translated into my BJJ game, and using that ratio, that would suggest I had a 3 or 4 year head-start on my BJJ collegues. All up that would point to bw
8-10 years of effort to earn my BJJ Purple Belt?
Could I have earned my Judo Brown quicker than I did? Well yes, but I didn't.
Could I have earned my BJJ Purple quicker than I did? Well yes, but I didn't.
Was I appropriately graded in both martial arts? Yes.
Could I be used as a yardstick to measure one's competitiveness in either art? Yes.
If a wrestler was to beat me, what grade should he be? That's an easy one, White belt, until such time he Grades higher.
While the skill aquired and developed in grappling arts (particularly BJJ and Judo) are complementary, the grading requirements for each have distinctly differences. As a Judo Brown Belt I could 'beat' Judo Black Belts in competition (did so on a number of occassions), but that didn't mean I wasn't a real Judo Brown Belt or the Black Belt didn't deserve their rank, rather that I was the better competitor on the day.
Similarly, as a BJJ Purple, I've beaten/dominated higher grade players on occassions (not at competition, because BJJ Competition divisions are typically set by age, sex, weight AND grade). Again, the fact that I have occassionally walked off with wins verses my similarly graded peers doesn't mean they weren't worthy of their grade nor that I should be a higher grade, rather I was the better competitor on the day.
Testing oneself against a handful of players in another style might enable you to judge your competitiveness relative to grades in that style, however you run the risk that your sample isn't typical of the wider population. As I touched on earlier, typically Grades are indicative of more than just an individuals competitive ability, so comparisions between grades of different styles is tantamount to comparisions between apples and oranges, utimately fruitless

.