Brandon Stone and Daniel Brooks claimed the lead at the South African Open Championship prior to yet another premature finish brought about by thunderstorms.
For the third day in succession, the threat of lightning ensured the scheduled action could not be completed at Glendower Golf Club.
Branden Grace and Keith Horne had led overnight, but it was Brooks - whose only previous European Tour title came at the rain-reduced Madeira Islands Open in 2014 - occupying top spot by the time the second round was belatedly completed on Saturday.
The Englishman's 67 put him one clear and he duly improved his score by a further shot over the front nine in round three to reach 10 under.
However, Stone pulled level with Brooks as he offset a solitary bogey in the first 11 holes of his third round with five birdies.
Horne remained eight under after nine holes, two off the pace, with Chris Swanepoel and Christiaan Bezuidenhout a shot further back.
Yet it was a miserable day for Grace, who finished his second round with successive bogeys and then followed a birdie at the second with four more dropped shots in round three.
At four under through 10, Grace was back in a tie for 18th - six strokes adrift of Stone and Brooks.
Richard Sterne made a significant move in the other direction, five birdies and an eagle in the space of eight holes lifting him from two over to five under after 10 holes of his third round.