American Carter Jones's time trial ablity allowed him to extend his overall lead in the penultimate stage of the PowerNet Tour of Southland which was won by Michael Vink (Calder Stewart).
The New Zealand National Under-23 road and time trial champion completed the 12km course in 17min 26.53sec to win stage seven.
Jones (Bissell) finished 13sec behind Vink, but more importantly, 13sec ahead of nearest rival Michael Northey (Node 4 - Subaru) to secure himself a 17sec lead heading into the final stage.
"It is good to finally get a win for Calder Stewart and the tour is still far from over," Vink said to Cycling Central.
"It is the first chance I have had to go really deep all tour and go for a stage win. I'm really happy to pull it off.
"We've got a hard stage next stage and both Hayden and I have shown that we have got good legs. We have nothing to lose and everything to ride for. We will try to blow the race apart."
The final stage is an 87km race from Winton to Invercargill.
Taylor Gunman (Pure Black Racing) retains third place, trailing the leaders by 1min 28sec. while Hayden Roulston (Calder Stewart) lies in fourth place, just over 2min adrift.