Robert MacIntyre moved into a one shot lead early on day one of the Commercial Bank Qatar Masters.
The Scot is playing his rookie season on the European Tour and he played his first ten holes at Doha Golf Club in four under.
Australian Deyen Lawson, Japanese Yusaku Miyazato, Spaniard Adrian Otaegui and Finn Kalle Samooja were then a shot off the lead.
Otaegui has two European Tour wins to his name but is yet triumph in a 72 hole stroke play event and lost in the final of last month's ISPS Handa World Super 6 Perth.
He birdied the tenth and 13th, adding further gains on the 16th and 17th to lead the way at four under where he was joined by MacIntyre.
The European Challenge Tour graduate made a birdie-birdie start but bogeyed the 12th before picking up shots on the 16th, 18th and first.
Otaegui dropped a shot on the 18th to turn in 33.
MacIntyre's playing partner and fellow Challenge Tour graduate Samooja had birdies on the 16th, 18th and first.
Lawson had a hat-trick of birdies from the 16th after going birdie-bogey from the 11th to turn in 33.
Miyazato bogeyed the 12th but then made four birdies in a row from the 16th.
There were then 11 players at two under including George Coetzee, Ross Fisher and Thongchai Jaidee.