For someone who has not won since 2005 and is without a top-10 finish on the European Tour for over two years, Derksen's two early bogeys seemed to suggest a continuation of his wretched form.
The twice European Tour winner, however, staged a remarkable comeback, rolling in three birdies to turn in 34 and firing four more in a strong back nine.
"It was a funny day, because I started well with a birdie from about five feet, but then three-putted the third and fourth and ended up in three divots on the fairways later in the round," said Derksen.
"It's only the first day, I know, but I haven't led a tournament for quite a while, so if I can keep rolling in the putts, hopefully we could be in for a good week," said Derksen.
With three of the European Tour's last five winners lurking two shots behind, it may not be easy in the £2million tournament co-sanctioned by OneAsia and the European Tour.
Kiradech Aphibarnrat of Thailand, Frenchman Raphael Jacquelin and Australian Brett Rumford carded matching 68s with six players a further short back including former British Open champion Paul Lawrie.
"It was a good test for the first round back after my victory last week," said Rumford, last week's Ballantine's Champion, after a bogey-free round at Tianjin's Binhai Lake Golf Club.
"It's just a matter of 'keep doing what you're doing'."
Aphibarnrat, who won his maiden European Tour title at the Malaysian Open in March, was taking a similar approach.
"I have played well for three or four weeks in a row now, and will try to finish high up the leaderboard again this week," said the Thai who carded five birdies and a solitary bogey in his opening round.
- Sports & Recreation