Ormsby carded a final round of 68 at Hong Kong Golf Club to finish 11-under-par, a stroke ahead of Spain's Rafa Cabrera Bello, Sweden's Alexander Bjork and the American pair of Julian Suri and Paul Peterson.

The tournament looked to be heading to a play-off when Ormsby three-putted the 72nd hole to leave Cabrera Bello needing to par the 18th to force extra holes.

However, Cabrera Bello then found a greenside bunker with his approach and failed to get up and down, leaving World No.319 Ormsby to claim the second win of his professional career.

Wade Ormsby three-putts the final hole, believing it had cost him the Championship. PHOTO: Arep Kulal/Getty Images.

European No.1 Tommy Fleetwood finished alone in sixth after a closing 69 made up of 17 pars and a solitary birdie on the 17th, with four-time winner Miguel Angel Jimenez a shot further back after a brilliant 63.

India's SSP Chawrasia, who began the day with a one-shot lead in pursuit of a wire-to-wire victory and was three ahead after eight holes, finished alongside Jimenez after a triple bogey on the ninth and four bogies in five holes on the back nine.

FINAL LEADERBOARD

Adelaide-born Ormsby, 37, played his first season on the European Tour in 2004 after coming through qualifying school, which he's done four times since in a career that has seen him struggle with injury at times.

A fifth-placed finish at the Andalucia Valderrama Masters hosted by the Sergio Garcia Foundation ensured he eventually kept his card in comfortable fashion last season and he will now have an exemption until 2020.

"It means a lot to me," a tearful Ormsby said.

"I've played a lot of golf in Europe, everywhere, and a few bumps along the way but it's pretty cool to get a win this late in your career."

Rafa Cabrera Bello plays from the sand at the final hole but couldn't make his par to force a play-off. PHOTO: Getty Images.

Ormsby, sporting a new moustache, said he sympathised with Cabrera Bello – who finished second in this event last year to New South Welshman Sam Brazel – but was still happy to take the win.

“It was a bit of a weird feeling watching Rafa with a short par putt on 18 to make it a play-off,” Ormsby said.

“You don't want to win like that but I'm sure a lot of guys have. I just missed one there, too. I don't know, it's not the way you want to do it, but at the same time you take them how you can get them.

“This feels amazing. I’m trying to hold it together here but I’m pretty stoked. Well, not pretty stoked: Very stoked.

“I played solid all day, hit a lot of greens but the putter wasn't quite behaving. You saw that at the last which was disappointing to three-putt but you have to take them when they come so I won’t be complaining too much.”

* Additional reporting, Brendan James