Englishman Ashley Chesters posted a flawless 67 to grab the clubhouse lead before the second round of the weather-affected Porsche European Open was suspended due to fading light.
Almost four hours of play were lost on Friday afternoon after the second heavy downpour of the day forced play to be halted at 12.59pm local time due to a waterlogged course.
Early starter Chesters, who had fired four birdies in his first 13 holes before play was suspended, picked up another shot after the restart to get to nine under par.
That left him one stroke clear of Siddikur Rahman, who completed his round on Friday, and Richard McEvoy, Stuart Manley and defending champion Alex Levy - all of whom were still out on course when play was suspended for the day at 20.52pm.
The second round will resume at 08.00am on Saturday morning.
Chesters began his second round two shots behind overnight co-leaders Julian Suri and McEvoy but soon set about catching them up.
Starting from the tenth tee, he made back-to-back birdies at the 12th and 13th to get to six under.
And after safely parring the next five holes, Chesters repeated the trick at the first and second to get to eight under as the first of the day's heavy showers eased off.
But after he had made pars at the third and fourth holes, the rain returned and play was suspended, with Chesters and fellow Englishman Jordan Smith tied at the top of the leaderboard.
Shortly after play resumed at 16.45pm, Smith missed his 11-foot par putt at the ninth - his last - and Chesters picked up a shot at the eighth to get to nine under.
After his round, Chesters said: "I definitely didn't hit it as well off the tee today but the putting made up for a lot so that was nice.
"I didn't even realise I had gone bogey free today, it didn't really come into my head on the way around so, it's always nice to keep the bogeys off the card - it's the easiest way to get a good score.
"It's a completely new experience, tomorrow is going to be totally new to me but the whole year has been a learning experience for me. I seem to have learnt a lot so far so I'm guessing tomorrow is going to be the same."
Rahman also started at the tenth tee on Friday morning and reached the turn in 35 after carding four birdies and one bogey.
He got to seven under after making further gains at the first and third but he dropped a shot at the fourth.
The 32 year old then picked up a shot at the par-three fifth before using the slope on the eighth green to set up an eight-foot birdie chance, which he holed on his way to signing for a 66.
He was delighted with his performance. He said: "I am so happy, especially today because my short game was very good.
"I holed many long putts today and that’s why I played so good and managed to make a better score.
"I am playing quite good, I'm doing everything I'm supposed to do and I think everything is coming smoothly."
Despite dropping a shot at the last, Smith was happy with how he is playing. He said: "I'm loving the course out there and playing good, so I've just got to go into the weekend and give it my best."
Starting his round in the afternoon when play resumed, Levy holed his five-foot birdie putt at the first to get to six under but dropped a shot at the next.
He bounced back in style, however, notching three birdies in a row from the seventh to get to eight under.
The Frenchman slipped back to seven under after carding his second bogey of the day at the 13th but fired a birdie at the long 15th before play was halted.
