Seoul and Pyongyang developed historical rivalry for over a century, and their football teams were no exception.
In the Joseon era of Korea, Hanyang (currently Seoul) was the capital, and Pyongyang was the second largest city.
By the way, Joseon government created the discriminative atmosphere against Pyongan Province including Pyongyang, and there was also profound conflict between the two largest cities.
The first Kyung-Pyong Football Series was held by the Chosun Ilbo in Seoul in 1929, and the united team in each city participated.
Despite the end of the series, the two clubs occasionally met each other in several competitions until the division of South and North Korea.