A Brevet 1000 has ridden 5x 200km events in one season or, 10x 100km events.
NB it is also possible to gain Brevet 1000 by riding 10x 100km over a longer period - sorry, but these are not listed here, due to the complexities of that calculation. (See also, 1-year Brevet 2000+ lists)
These lists, which are calculated directly from AUK's online Results Archive, will update at intervals, but please understand that it is inevitably always out of date - at least until well after the very end of the season.
The most recent update was on 07.02.2012