Age, Experience, & Proficiency categories-compared worldwide

[foxtrotguy]

Age, Experience, & Proficiency categories in ballroom seem to be designated differently in various organizations and countries. Could someone clarify the comparisons, perhaps in a comprehensive table (or two)?

For example, Rule E.2.1 (Age Restriction) in "WDSF Competition Rules" (15 June 2016), worlddancesport.org, refer to Juvenile I, Juvenile II, Junior I, Junior II, Youth, Under 21, Adult, Senior I, Senior II, Senior III, Senior IV.

dancesport.uk.com identifies for England: age groups--Juveniles, Juniors, Youth, Adult Amateurs, Seniors, Over 45's; experience levels--Beginners, Novice, Intermediate, Pre-Championships Pre-Champ (called also Pre-Amateur Pre-Am), Open Amateur; competitive grades--Bronze, Silver, Gold, Open. For England's experience levels it adds, "In Europe however the corresponding classes are called (starting from the lowest) E, D, C, B, A with S reserved for International Amateurs."

Prometheus, a Russian club, refers to "M", "S", "A", "B", "C", "D", "E", "H" - classes (oriondance.ru). Germany seems to employ similar groupings.

It's kind of like the Abbott and Costello "Who's on First?" routine. Please help synthesize all these apples and oranges with some common denominators. Thanks for your help.

 

[Lioness]

Australia:

Recreational: Beginners grade. Generally loose frame, no body contact, steps are there but minimal technique present. No costumes allowed to be worn. Technically Recreational is split into a couple of levels but I'm not sure what they are.

C Grade: The lowest "competitive" level. Costumes are necessary. Couples generally start to get more technique, more movement across the floor, etc. Dancing is generally together but can be a little shaky, toplines are not great, etc.

B Grade: Moving on up. B Grade couples will generally have good movement, technique, and line. They start to get trickier choreography and more is expected of them in terms of shaping, dynamics etc.

A Grade: Top level. Couples almost always have good topline, good technique, and complex choreography.

Open events can be danced by C, B, and A Grade couples.

 

[Loki]

Tower of Babel.

Pretty sure there are translation threads here. No Russian though IIRC.