Winger Gio Aplon and fullback Joe Pietersen scored first-half tries as the Cape Town-based Stormers extended their early season winning streak to retain their place atop the championship table.

The Highlanders lost for the second time in seven games to drop back to third place on the overall table ahead of their bye week and to hold second place behind the Waikato Chiefs in the New Zealand conference.

The match fell short of expectations of a top of the table clash, though the Stormers impressed again with their defensive intensity.

The Stormers are at the start of a season-defining tour in which they will play the second-placed Highlanders, seven-time champion Canterbury Crusaders, defending champion Queensland Reds and the improving Western Force in successive weeks.

They made their first stop a winning one on Saturday, seizing control of the match as they worked hard to attain field position in the first half, then holding out the Highlanders’ increasingly desperate attacks in the second.

The Stormers regained the best defensive record in the tournament as they kept their goalline intact throughout the match. Their giant forward pack gave Otago little leeway around set pieces or in the loose and their backline defense was both carefully organized and determined.

Pietersen was an outstanding contributor on Saturday. He began and finished the try of the match in the first half, posed a continuous attacking threat and helped negate the Highlanders’ attempts to control the match with their kicking game.

“We’re pleased with the win. It definitely wasn’t easy,” Stormers captain Jean de Villiers said. “It was against a quality side. We were probably a bit lucky with some tries in the first half but we’ll definitely take the win.

“The bounce of the ball went our way today. We’ve got a hell of a tough tour. The match tonight was incredibly hard and tough and it doesn’t get any easier next week against the Crusaders.”

The Highlanders attempted to play a kicking game in the first half, then reverted to their more accustomed ball-in-hand style in the second spell. Neither approach served to break down the Stormers’ defense and the Highlanders paid at times for poor execution under pressure.

Even the contributions of hooker Jason Rutledge, who played his 50th match on Saturday, and scrumhalf Jimmy Cowan, who played his 100th, couldn’t alter the course of a match determined by the Stormers’ early tries.

Aplon scored the Stormers’ first try in the 12th minute. Highlanders winger Hosea Gear was dispossessed and de Villiers kicked through and behind the defense. Fullback Ben Smith managed only to hack the ball toward his own goalline and Aplon won the race to the ball behind the line.

Pietersen then created and scored a superb try. He fielded a kick from Highlanders scrumhalf Aaron Smith and set off upfield, beating tacklers. When held the ball was quickly recycled and Pietersen reappeared in the Stormers backline, put in a short kick when confronted by the defense and regained the ball to score near the posts.

Flyhalf Peter Grant kept the Stormers comfortably in front with two penalties and the conversion of Pietersen’s try. Flyhalf Chris Noakes kicked two penalties from four attempts for the Highlanders’ only points.

“They’re a great defensive team,” Highlanders captain Jamie Mackintosh said. “I suppose we went into the game wanting to kick a little bit more and get field position.

“Full credit to them. They’ve had a hard week of travel and to come to Dunedin and get a result like that, they’re bloody good.”