Robert Dinwiddie and Tjaart van der Walt share lead at St Omer Open
Last Updated: 15/06/13 5:22pm
Robert Dinwiddie: Bogey-free second round in northern France
Robert Dinwiddie was gifted a share of the halfway lead at the Najeti Hotels Open after Tjaart van der Walt's poor finish to his second round at St Omer.
Overnight leader Van der Walt birdied three of the first six holes and was three shots clear with seven to play, but mistakes at the 12th, 15th and 17th holes dropped him back to four under.
The South African parred the last to cap a 72 which left him tied at the top with England's Dinwiddie, who had taken advantage of an early start to card a flawless five-under 66.
The 30-year-old was delighted with his form and revealed he was almost forced to withdraw from the event due to a back injury.
"Considering I didn't think I would be teeing it up, after taking a bad step on Tuesday morning and damaging a bad disc in my back, it was great," said the 30-year-old.
"I couldn't hit a ball on Wednesday so I honestly thought I had no chance but I just iced it and took a lot of anti-inflammatories and recovered so it was great.
"I played really steady so I'm happy. The weather was much easier today and I played just as well yesterday but the weather just helped. I know the course very well and I have a lot of good feelings around here."
Dinwiddie's fellow Englishman Simon Wakefield is just one-shot adrift after a solid four-birdie 68, while Chris Hanson also moved to three under after picking up three shots over his final five holes to match Wakefield's 68.
Seve Benson added to the strong English presence at the top of the leaderboard after a superb best-of-the-day 65 featuring eight birdies.
But Simon Dyson, the highest-ranked player in the field, will have the weekend off after a ragged 74 dropped him to four over par - one outside the cut mark.