Jason Scrivener, Francesco Laporta and Thomas Linard shared the lead at the Trophee Hassan II after Thursday's opening round in Rabat.
Just two shots separated 16 players at the top of the leaderboard, with Scrivener, Laporta and Linard leading the way on four-under after rounds of 68.
The trio sit one shot clear of five players including home hope Younes El Hassani, while eight more are nicely poised on two-under.
Laporta and Linard experienced mixed rounds, both men making eagle at the par-five 12th while also making two and three bogeys respectively.
Scrivener was more consistent, carding five birdies and dropping just one shot on the 13th.
"It was pretty tricky out there this morning, pretty wet and quite cold, so to shoot a 68 in those conditions was very pleasing," the Australian said.
"There are some tricky holes early on, so to birdie two of my first four was just the sort of start I was looking for.
"After that, I hung in there well and putted nicely, so it was a good day all round."
Laporta added: "I played very badly for the first five events, but last week in Madrid on the Challenge Tour was much better.
"I finished fourth and took a lot of confidence from the week, so hopefully that has turned my season around."