CHEONAN, South Korea -- Casey Jarvis could yet ensure the fight for the Race to Dubai title on the European tour is between four golfers.

The South African shot 6-under 65 to lead the Genesis Championship in South Korea by one stroke after the first round Thursday.

Sanghun Shin, one of four South Koreans in the top 19, was in second place.

Jarvis, a two-time winner this season, is in fourth place in the yearlong Race to Dubai standings. A good week will set him up for a shot at the title -- against Eugenio Chacarra, Patrick Reed and Rory McIlroy -- heading into the final two events of the season, in Abu Dhabi and Dubai.

Chacarra, the Spaniard who won in India last week, is the only player among the top three to be competing this week. He shot 72 on Thursday to be tied for 53rd.

Jarvis has already won two tournaments this season, the Kenya Open and South African Open Championship back to back in late February. He was second at the Joburg Open the following week.