Sao Paulo, Brazil (SportsNetwork.com) - Peter Malnati and Tyler Duncan shared a 1-shot lead in the midst of their third rounds on Saturday when play was suspended due to inclement weather at the Brasil Champions.

Malnati, who held the lead at the conclusion of the second round, which finished up Saturday morning, is through 12 holes of his third round, while Duncan is through 13. The duo is tied at 15-under.

Play was delayed at 3:35 p.m. ET and was later called for the day with 45 of the 72 players who made the cut still playing. Players are scheduled to be back in position at Sao Paulo Golf Club at 5:45 a.m. ET on Sunday to resume their third rounds.

Malnati, who carded a 9-under 62 in his second round, has one win on the Web.com Tour at the 2013 News Sentinel Open. Duncan shot a 7-under 64 in round two and is seeking his first win on tour.

Abraham Ancer and Tommy Gainey are both one shot back at minus-14. Ancer is through 14, while Gainey is through 12. Seven others are one shot further back at 13-under.

Brady Schnell, who is one of those players at minus-13, is currently 9-under through 14 holes. He needs to play his final four holes at minus-3 to shoot a 59.

Malnati, who carded nine birdies and no bogeys in his second round, was relatively routine to start off round three.

Following a trio of pars from one, Malnati tripped to his first bogey in 38 holes on the par-4 fourth. He steadied the ship for a bit with four straight pars from five and then Malnati made the turn with his first birdie of the day on No. 9.

After making back-to-back pars on 10 and 11, Malnati drained another birdie on the par-3 12th to get into red numbers. Play was suspended when he was on the 13th hole.

"That 62 feels like a long time ago," Malnati said. "I got off to a great start in the second round with birdies on four of the first five holes. After that I just kind of let the putts go in. Right now, I'm trying really hard to make the putts go in and that's the big difference."

Duncan made a lot more progress up the leaderboard in his third round after also going bogey-free in round two, which featured seven birdies.

A birdie at the first got Duncan going early on. Following a pair of pars on two and three, Duncan poured in five gains in a six-hole stretch from No. 4, with a par coming on eight.

Duncan's bogey-free streak of 27 holes came to an end when he dropped a shot on the par-4 10th. He then rattled off a trio of pars from 11 before play was called for the day.

"I hit it good and right where I wanted to," said Duncan. "I made pretty much everything I looked at. I haven't looked at anything and don't care much at this point. We've still got 20-some holes to play. Maybe towards the end of the day tomorrow I might (pay attention)."

Schnell's incredible round started on the back nine, where he had birdies on 10 and 13 to start. He then ran off five birdies in six holes from 16. Schnell also poured in an eagle on the par-5 17th.

Through 12 holes, Schnell was at minus-9 and he needed to play his final six holes at 3-under to shoot a 59. Schnell slowed down a bit before play was called, making pars on four and five. In order to shoot a 59, Schnell needs to pick up three shots over his final four holes.

NOTES: Both Russell Knox and Will Wilcox shot 59s on the Web.com Tour in 2013. Jason Gore also had one in 2005 on the Nationwide Tour ... Duncan has missed the cut in all three of his events so far this season ... The Web.com Tour plans re-pair groups at the start of round four ... The course record was set by Jon Curran last year when he shot a 10-under 61.