I have seen and joined many players/groups who categorise themselves as advanced players, only to be disappointed that they are actually only high beginners or low intermediates according to my own definition of those terms. I am sure that many others have also experienced such things. I wonder if there are any set of universal rating system for badminton similar to tennis' NTRP system for players to rate themselves more accurately. Just as a gauge for those of you who know my standard, I rate myself as a "low intermediate". I have played with and against players ranging from complete beginners to professionals like Aman Santosa and Hendri Saputra. As such, my definition of "advanced" would tend to be a little stricter than those players who have not had a chance to spar with players of such calibre. So here's how I define those terms. Do comment and add on them. Hopefully we can refine it as we go along. Professionals/Ex-professionals: Players currently representing/represented their countries in international tournaments. National youth players do not count. Advanced: Players who are/were members of the national training squad but have not represented their countries in major international tournaments belong to this category. National Youth squad trainees (above age 17) belong to this category too. Intermediates: Players who regularly take part in local competitions and have had a high degree of success. Inter-con players who have won regularly belong to this category. These players possess very good fundamentals but lack the experience and certain aspects of their game to put them on par with the Advanced players eg speed, power, stamina, killer instinct, gameplay. Low Intermediates: Players who have/had occasionally taken part in local competitions but have not had a high degree of success. These players generally belong to social groups/clubs and occasionally take part in local tournament just for fun. Generally have very sounds basics and good gameplay but do not undergo regular formal training. As such, they do not have good stamina, speed and power to match the more regular competitive players. High beginners: These are the regular social players. Occasionally take part in friendly matches with other social groups. Have low degree of success in friendly matches. Hardly takes part in local competitions. Beginners: Generally players who have played for less than a year. Have not taken part even in friendly matches. May be able to execute proper strokes and footwork but lack success in match situations.