How Foreigners Can Register for Korea’s Big 3 Marathons: Seoul, JTBC & Daegu (2027 Registration Windows & Tips)
How to enter Seoul, JTBC and Daegu marathons as a foreigner in 2027: the overseas channel and USD 150 fee, the sub-5-hour record deadline of 30 November 2026, refund cut-offs, bib pickup and the payment traps.