CORRECTION: Dates for Greenbelt 2026 are April 29, May 6, 13 and 20, 2026 (Wednesdays, not Thursdays). We have edited the caption below to use the correct dates. Dates for the 2026 Greenbelt Park Training Race Series are set: April 29, May 6, 13, and 20, 2026. Registration for week 1 opens next week on April 15. We have several exciting changes to the series this year. The race will be held on the same loop in Greenbelt Park as before, but now on a fully closed road. Parking and registration will be in the Sweetgum picnic area and the start and finish line are just east of entrance to Sweetgum. The course will be closed to all traffic — vehicles and cyclists not in the race — from 5:55pm to 6:45pm and again from 6:55pm to 7:45pm. More details on these changes are in the Notes on BikeReg. The Greenbelt Training Race Series is co-hosted by Route 1 Velo and the National Capitol Velo Club. Stay tuned for announcements about sponsors and podium prizes over the coming weeks. Finally, w...