Lately I've run into a lot of people that seem to be keeping track of these numbers and I think it's really putting way too much importance on the the wrong thing and in fact, it's holding back their progress in jiu-jitsu. Win-Loss records may be okay for team sports or something like boxing or MMA where you have consistent weight classes and specific categories (like a professional record versus an amateur record, heavyweight, welterweight, lightweight, etc.). In jiu-jitsu (and I mean both BJJ and Submission Grappling), there are different levels...belt colors or experience levels. There are different weight classes in BJJ and Sub Grappling and even different weight classes from tournament to tournament. There are also somewhat random "professional" weight divisions like (for women) over and under 132 or 140 and (for men) over and under 160 or 180 but it's always different. So in these cases you're actually comparing apples and oranges.
Let's say you win a match at your weight and experience level. How does that compare to losing in an over 160 Professional division where you were 175 and the guy you lost to was 220? How can those be equally compared?
If it's about winning, then why not stay a white belt forever and be the best white belt on earth? (I know, some of you will say that you wish you could be a white belt forever...)
When you get promoted, it generally puts you at (or closer) to the bottom of the next higher level. So you just went from the top of one level to the bottom of the next. So, let's say you've been a blue belt for 6 months and you lose to someone who's been a blue belt for 2 or 3 years and is about to get his purple. Is that loss worse than winning against a brand new white belt? Would you rather just keep beating up all the white belts because you don't want to lose to a blue belt?
If you really want to improve your game, the biggest improvements come from competing and losing. Of course I'm not saying to go out and try to lose. For God's sakes, no one WANTS to lose, but it happens. The good news is that this is where you have the opportunity to learn the most. If you have ever wondered what part of your game you should be working on or what the weakest part of your game is (these would generally be the same thing) I suggest you enter a tournament. A loss will tell you EXACTLY what you need to improve. A win will tell you that what you are doing, for now, is working and you're on the right track.
Competitions are a testing ground. It is not about your win/loss numbers.
Everybody has lost. All of the greatest competitors have lost. And all losses are not equal...except in that they are all valuable and so much can be learned from each one.
As I always say and will say again and again...just work on getting better at jiu-jitsu. Just try to keep improving. The rest will come.