American Junior Golf Association
The AJGA is by far the most competitive junior tour on this list. It is also the most complicated and the most expensive due to entry fees and travel. Entry is based off of a Performance Based Entry (PBE) system that would take me longer than a paragraph to explain. If you are interested in playing on the AJGA tour then I would recommend reading up on their website on how the PBE system works.
The AJGA has put together a great “Getting Started with the AJGA” segment.
Per the American Junior Golf Association website:
The AJGA is a 501(c)(3) nonprofit organization dedicated to the overall growth and development
of young men and women who aspire to earn college golf scholarships through competitive junior golf.
source: ajga.org