Santiago's own Nicolas Jarry thrilled his hometown crowd with a stirring come-from-behind 6-7 (5-7) 7-6 (7-5) 6-2 triumph in Sunday's Chile Open final against Tomas Martin Etcheverry.

Jarry, 27, had not made it through to an ATP final since his first and only title win at the 2019 Swedish Open, but the wait was worth it as the Santiago crowd treated him like royalty.

There were no breaks of serve in the opening set, and only one opportunity, but Jarry found himself a set down for the second match in a row after falling short in the tiebreaker.

But just like he did in his semi-final comeback against Jaume Munar, Jarry dug in and quickly ran out to a 3-0 lead in the second set.

It was short-lived, as Etcheverry rallied back to tie things up and force another tiebreaker, when Jarry turned around a 4-2 deficit and rattled off three important points in a row to gain the ascendancy, successfully serving it out to take things to a decider.

After posting an accurate first serve percentage of at least 67 per cent in each of the first two sets, Etcheverry fell apart in the third, landing only 36 per cent of his first serves fair, and winning just half (11-of-22) of his total service points.

Meanwhile, when it mattered most, Jarry's serve became overwhelming, winning 94 per cent (16-of-17) of his service points to slam the door shut on his Argentine challenger.