Paul Dunne stormed into the top 10 at the Joburg Open on Friday after a brilliant eight-under 63 moved him to nine under at the halfway point.

The Greystones native is five shots off leader Ross McGowan, who went one better with a nine-under 62 to move to 14 under and take a three-shot lead.

Both players made were playing the West Course, with England’s McGowan carding two eagles as he came home in 29 shots, while Dunne had an error-free round, with four birdies on each nine.

The South Africa duo of Jean Hugo (65) and Haydn Porteous (66), as well as England’s Antony Wall (67) and Chile’s Felipe Aguilar (65) share second spot on 11 under, while Dunne is alongside a group including first-round leader Justiin Walters, who carded a 69 .

After reaching the turn in 33, McGowan birdied the 10th and holed his second shot to the 12th for an eagle, before picking up another birdie on the 14th and holing from 15 feet for eagle on the par-five 15th to cover the back nine in 29.

The 33-year-old won the Madrid Masters in 2009, aided by a career-best 60 in the third round, but lost his card in 2011 before regaining it last November by finishing fifth in the qualifying school in Spain.

“I played well yesterday and started well today, opening up with two birdies,” said McGowan, who was in contention in last week’s BMW SA Open before a closing 74 dropped him into a tie for 12th.

“It went a bit flat for a few holes, then on the back nine the fireworks started. I holed a wedge on 12, which was nice, and hit two great shots into the par five and had 15 or 20 feet for eagle – and holed that as well.”

Aguilar had matched McGowan’s 67 in the opening round and added a flawless 65 on Friday.

Aguilar has not played competitively since the end of November and revealed he had prepared for his 2016 debut by completing an iron-man triathlon.

“I feel very comfortable, very healthy, which is the only thing I was hoping for this week,” the 41-year-old said. “I had to take some measures as soon as I finished (the triathlon), like an IV, trying to hydrate again, a pool of ice, things like that.

“I had to do everything the way they wanted actually and it worked out pretty good. Even though I had that race last week I was practising pretty much every day early in the morning and I was doing the iron-man training in the afternoon, but it was awesome.

“Golf is a lot easier health-wise than the triathlon. That was something really extreme for me, it was an amazing experience, but it takes a little bit too much time from golf, so I’ll put that aside and I’m going to wait a couple more years until I do another one.”

Wall finished joint second in this event last year and finished his 67 in style with an eagle at the 18th as he looks to add to his sole European Tour victory to date, which also came in Johannesburg in 2000.

“I’ve had six weeks off with a really bad neck and I’m sort of so-so now, so my practice was pretty average while I was at home, it was pretty sparse,” Wall said.

“Normally I work pretty hard in the off-season so I was rusty, but my method is there. To get to 11 under on two good tracks, I think my first week has been great. I’m really looking forward to a good weekend.”

Four-time major winner Ernie Els, who accepted a late invitation into the event, birdied the 18th on the East Course to make the halfway cut on the mark of three under. Michael Hoey, who carded a two-under 69 on the West Course, and Kevin Phelan, who signed for a level-par 72 on the East, also made the cut on the number.

Ruaidhrí McGee missed the cut after carding a five-over 76 on the West Course to finish on four over.