For new and aspiring endurance riders, check out the Green Bean Endurance Challenge.
AERC members with fewer than 1,000 career miles (Limited Distance and Endurance combined) are eligible to sign up. Riding accomplishments and miles are recognized, and additionally, the Green Bean program offers non-riding ways of accruing bonus points, such as volunteering, attending clinics, crewing, or participating in webinars/other learning opportunities. They also offer team competitions towards year-end awards.
The sign-up deadline to be a part of a 2020 team has been EXTENDED to 04/01/2020, so head over to the Green Bean Endurance website linked above for more information on how to sign up and participate.