The NN CPC Loop Den Haag is The Hague's spring half marathon, first held in 1975.
CPC stands for City-Pier-City: from the city out to the seaside pier and back.
The March 15, 2026 race was the 50th edition, and with 54,700 entries across all races, including 24,920 for the half marathon, every race sold out.
The 51st edition in 2027 is on Sunday, March 14.
The start line for all races is on the Koningskade, and the finish is right next to it on the Malieveld.
The half marathon leaves the Malieveld, passes through several neighborhoods of The Hague out to the Scheveningen beach promenade, and returns to the Malieveld.
It's flat and considered one of the fastest half marathon courses in the world, and the Dutch half marathon record was set on this course.
The course records are 58:33 for men, set by Samuel Wanjiru in 2007 as a world record at the time, and 1:06:56 for women, by Lorna Kiplagat in 2000.
Races are the half marathon, 10K, 5K, youth 2.5K and 1K, and a 1K for participants with disabilities.
In 2026 the half marathon started in six waves 15 minutes apart from 11:30 a.m.,
the 5K at 10:40, and the 10K in four waves from 3:10 p.m. The time limit is 2 hours 30 minutes for the half marathon, 1 hour 20 minutes for the 10K and 45 minutes for the 5K.
