Mikko Korhonen maintained a comfortable lead as the final round of the Shot Clock Masters got under way at Diamond Country Club.
Korhonen has been to the Qualifying School 12 times, winning the Final Stage in 2014 and keeping his card ever since.
He is playing his 146th European Tour event this week but is going in search of win number one at the age of 37.
The Finn began the day with a five-shot lead and while he saw that cut to four by Frenchman Raphaël Jacquelin and Scot Connor Syme, he made a birdie on the third to move to 14 under and stay bogey-free for the week.
A par on the fourth then kept him four shots ahead before the threat of lightning in the area saw play suspended at 1.00pm.
England's David Horsey was at nine under, a shot clear of a group of five players.
Every player in the field was on the clock for every shot, with home favourite Markus Brier and Swede Oscar Stark both handed one-shot penalties for bad times on Sunday.
Spaniard Scott Fernandez showed that low scores were possible in the morning, carding eight birdies and a single bogey in a 65 that matched the lowest round of the week and moved him to eight under.
Korhonen's lead was cut to four shots by the time he teed off, with Welshman Oliver Farr making birdies on the first, third, fourth, 12th, 14th and 15th.
Jacquelin also made a good start, birdieing the first, fourth and sixth to also sit at nine under.
A stunning approach into the seventh by Jacquelin then moved him into double figures while Horsey - who carded a 65 on Sunday here last season to storm into a share of second alongside Korhonen - made a birdie-birdie start thanks to two long putts, the first of which was from off the green.
Korhonen played the par five first in very conservative fashion but set up a birdie chance from around eight feet, although he could not make the putt.
A Farr bogey on the 17th then dropped him into that large group at eight under that was likely going to need a favour from Korhonen to have a chance of victory.
He did not look likely to give them one, with a stunning approach from the rough setting up a 14th birdie of the week.
Syme had birdied the third and he hit a stunning approach into the fifth before holing an 18-footer on the sixth - just seconds after the hooter had sounded - for a third birdie of the day.
Australian Adam Bland, Spaniard Miguel Ángel Jiménez and England's Lee Slattery were alongside Fernandez and Farr six shots off the lead.