Timescales vary according to prior skills and training:
But as a rough example.

i) To become a Stunt Performer at entry level could take up to 3-4 or more years,
ii) To become an assistant fight choreographer could take up to 4-5 or more years,
iii) To become a fight choreographer could take up to 6 or more years,
iv) To become an assistant stunt choreographer could take up to 5 or more years
v) To become a stunt coordinator could take 10 plus years
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