Golf: South Korea's Heungchol Joo leads by one shot (Korea Open)

Jazz Janewattananond finished with a one-under-par round of 70. South Korean amateur Seungtaek Oh finished with a round of 66. Sanghyun Park carded a three-under-par round of 68. Heungchol Joo shoots six-under-par 65 to lead the Korea Open.