Jon Rahm is making a nice habit of pulling off remarkable feats.
Nation native Rahm came back less than a week later completing at the Masters.
As Rahm closed with a five-under 67 to win his third European Tour title on 20-under par and become only the sixth Spanish victor since 1972, Dunne had to console himself with a late birdie that denied Spain's Nacho Elvira a share of second at the Centro Nacional de Golf.
"When I chose your decision in the future direct from Augusta rsquo & it wouldn;t be to show up and wander around, " I wished to get that particular tournament", Rahm told reporters.
Rahm then birdied to one clear on 18-under but dropped a shot on nine with Dunne parring four holes in succession from the sixth with the duo heading to the closing nine locked at 17-under.
"I've ever been blessed to function as federal champion from 16 to most ages in Spain".
After Rahm had stamped his mark on proceedings with birdies at the first, second and seventh holes in the final round, the tournament was decided on the short 17th.
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It's the 23 year old's fifth professional title and third European title, but it's the first time he has won as a professional on Spanish soil. George Coetzee was a shot further back in fourth after a 63.
"It's been fantastic", Rahm noted.
"It's been fantastic. It's truly been the hardest Sunday I've ever had in any tournament that I've won because the crowd wanted it so much and I wanted it so much". I felt that. And it was hard to deal with. I felt that stress.
"I'm a little disappointed, but Spain has a great champion in Jon and I'm sure he'll win many more of these". "So being able to win this as a pro and do this for them and the Spanish people feels great".
That left Dunne or even Elvira needing an albatross on the 18th to induce a tie an order with Dunne having a birdie into pip the Spaniard to location. Everyone seemed to want me to win.
Nacho Elvira was in strong contention, meanwhile, eventually finishing third at Centro National de Golf after a double-bogey on the penultimate hole. Martin Laird and Russell Knox ended up 32nd and 40th respectively.