The club was one of the original five founding members of the K League and continuously competed in the first division from 1983 to 2015, when they were relegated for the first time.

- Busan IPark

The initial five clubs were Hallelujah FC, Yukong Elephants, Pohang Steelworks, Daewoo Royals, Kookmin Bank.

- K League 1

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K League

South Korea's professional football league.

South Korea's professional football league.

It includes first division K League 1 and second division K League 2.

In 1983, it urgently made the Korean Super League with two professional clubs (Hallelujah FC, Yukong Elephants) and three semi-professional clubs (POSCO Dolphins, Daewoo Royals, Kookmin Bank) to professionalize South Korean football.