Since finishing school last year, Su has split his time between Beijing and Vancouver, and this year has played all but one of the seven Omega China Tour events.
He finished third at both April’s Kunming Championship and May’s Sofitel Golf Championship in Nanjing, when he missed a short putt to join playing partners Liao Guiming and Zhang Lianwei in a play-off.
This week’s event marked the Omega China Tour’s first stop in Tianjin and the city’s first major professional golf event since the 2004 Tianjin TEDA Open on the Asian Tour.
Tianjin Championship, Omega China Tour
Leading final-round scores (Chinese unless stated):
289 - Tsai Chi-huang (TPE) 73-74-69-73
290 - James Su Dong (A) 70-70-74-76
292 - Hsu Mong-nan (TPE) 73-74-72-73
296 - Zhou Jun 79-74-69-74, Yuan Tian 79-73-69-75
297 - Zhang Xinjun (A) 75-75-71-76
298 - Gao Hui 80-75-71-72
300 - Wu Weihuang 78-72-77-73, Li Chao 73-75-73-79
301 - Alex Wu Ashun 81-72-78-70, Shang Lei 74-78-72-77,
302 - Liu Guojie 77-76-76-73, Huo Wei (A) 74-79-75-74, Xiao Zhijin 73-75-78-76, Kong Weihai 74-73-75-80
303 - David Wei Wei (A) 72-75-82-74, Nick Redfern (ENG) 74-84-70-75
304 - Hao Chunxi 73-74-78-79, Chen Dinggen 76-76-72-80
305 - Chen Xiaoma 80-74-72-79
306 - Jim Johnson (USA) 77-74-80-75, Tan Yongzong 75-77-79-75, Liao Guiming 80-74-75-77, Fu Xin 75-78-73-80
Selected scores
313 - Jovick Lee Wing-kei (HKG) 81-77-78-77
315 - Garth Cusick (AUS) 82-73-78-82
316 - Wong Woon-man (HKG) 76-78-81-81