Alexander Bjork has won his first European Tour title courtesy of a one-shot victory at the China Open.
Bjork's final score of 18-under was one clear of Spain's Otaegui, who bogied the 17th to leave him needing an eagle on the last hole to force a playoff.
Smith's final round of 64 was the joint-best of anyone over the four days of competition, matched by Denmark's Lucas Bjerregaard who also scored eight-under on the final day.
CHINA OPEN LEADERBOARD
1. Alexander Bjork (-18)
2. Adrian Otaegui (-17)
3. Jordan Smith (-16)
=. Jorge Campillo (-16)
=. Matt Wallace (-16)