South Korean Na Yeon-choi produced a flawless final round to snatch a narrow one-shot victory on home soil at the Hana Bank KOLON Championship in Incheon.

The 22-year-old started the day joint leader but moved top of the leaderboard with a birdie on the par-four first before picking up further shots on the fifth and seventh to reach the turn in 33.

Na then added another birdie on the 15th before a birdie on the par-five 18th ensured she pipped Yani Tseng and Maria Hjorth to victory with a 10-under total of 206.

Tseng, of Chinese Taipei, carded a 68 while Swede Hjorth shot 67 to share second place on nine under while Ran Hong shot a 69 to claim fourth.

World number one Lorena Ochoa's poor form at the Sky 72 Golf Club continued as she carded a 73 to finish tied 44th. The Mexican's best round was a level-par 72 on the first day.

Collated final round scores & totals in the LPGA Tour Hana Bank-KOLON Championship, Sky 72 GC, Ocean Course, Incheon, South Korea

(Kor unless stated, par 72):

206 Na Yeon Choi 68 71 67

207 Yani Tseng (Tai) 69 70 68, Maria Hjorth (Swe) 68 72 67

210 Ran Hong 70 71 69

212 Song-Hee Kim 69 72 71

213 Jiyai Shin 67 76 70

214 Anna Nordqvist (Swe) 70 73 71, Se Ri Pak 70 72 72, Inbee Park 70 71 73, Brittany Lang (USA) 73 73 68

215 Jee Young Lee 70 72 73, Bo-Mee Lee 73 74 68, Momoko Ueda (Jpn) 70 75 70, Juli Inkster (USA) 70 76 69

216 Vicky Hurst (USA) 67 75 74, Ae-ree Pyun 71 71 74, In Kyung Kim 72 70 74, Meena Lee 69 73 74, Hee Kyung Seo 70 75 71, M.J. Hur 71 74 71, Sandra Gal (Ger) 71 75 70, Hee Young Park 72 74 70

217 Seon Hwa Lee 70 75 72, Catriona Matthew 67 79 71

218 Lindsey Wright (Aus) 70 79 69, Paula Creamer (USA) 72 74 72, Jimin Kang 67 73 78, Meaghan Francella (USA) 66 79 73

219 Ji-Young Oh 70 72 77, So yeon Ryu 71 74 74, Eun Hee Ji 70 71 78, Hye youn Kim 71 73 75, Ha-neul Kim 70 77 72

220 Sun Ju Ahn 73 77 70, Hee-Won Han 69 74 77, Bo kyung Kim 67 74 79

221 Sun Young Yoo 74 78 69, Jeong Eun Lee 73 76 72, Stacy Lewis (USA) 71 74 76, Hye-yong Choi 71 77 73, Kyeong Bae 71 76 74, Katherine Hull (Aus) 71 76 74, Karine Icher (Fra) 71 76 74

222 Giulia Sergas (Ita) 72 76 74, Lorena Ochoa (Mex) 72 77 73, Cristie Kerr (USA) 70 76 76, Candie Kung (Tai) 76 75 71

223 Soo-Yun Kang 70 79 74, Amy Yang (USA) 70 78 75, Christina Kim (USA) 69 74 80

224 Teresa Lu (Tai) 73 77 74, Anna Grzebien (USA) 66 82 76, Pat Hurst (USA) 67 79 78

225 Shi Hyun Ahn 74 76 75, Young Kim 71 80 74, Hyun Hee Moon 72 78 75, Da-na Kang 74 78 73

226 Mika Miyazato (Jpn) 71 81 74, Jin Joo Hong 75 79 72, Hyeon-ju Lee 73 75 78, Angela Park (Bra) 73 74 79, Sophie Gustafson (Swe) 75 76 75

227 Morgan Pressel (USA) 70 77 80

228 Hye Jung Choi 77 77 74

229 Jennifer Song (USA) 74 77 78, Nicole Castrale (USA) 78 74 77

230 Eunjung Yi 73 78 79, Ji-na Lim 74 80 76

231 Hui jeong Kim 73 82 76

232 Simin Feng (USA) 73 76 83

233 Joo Mi Kim 76 80 77