I haven't seen this as a thread (or on another) - starting from 2019. Mined from the RUSA site.
"Les Randonneurs Mondiaux announced a new award - the Challenge Lepertel - at their quadrennial meeting in August.
"This award commemorates former ACP President Robert Lepertel, who reinvigorated Paris-Brest-Paris and was instrumental in the founding and early development of Les Randonneurs Mondiaux.
"Riders achieve the award by completing four different events as follows:
a) A 1200 km or longer event in each of 4 consecutive calendar years.
b) Eligible events are Paris-Brest-Paris, or any event sanctioned by Les Randonneurs Mondiaux.
c) At least one event must start in a different country from the others.
d) The first event can be in calendar year 2019 or later."
In UK, AC's LEJOG 1400 seems to be the only qualifier. Might make the Bordeaux to Low Countries ride more popular. LRM 2020 calendar here:
http://www.randonneursmondiaux.org/51-Calendar_2020.html