SAINT-QUENTIN-EN-YVELINES, France -- Belgium's Thomas Detry shot a second-round 63 to share the lead with England's Dan Bradbury and Jesper Svensson at 9 under par midway through the Open de France on Friday.
Five players were one shot behind.
Detry also shot 8-under 63 during the Paris Olympics tournament, which was also at the Golf National.
"Got off to a great start," Detry said. "It's the type of golf course where it gives you a couple of opportunities in the first couple of holes, and if you drive it well, which I did all week so far, you can go low. I've been over here so many times."
Bradbury posted a second-round 66 and Svensson a 68.
Lev Grinberg, the 16-year-old Ukrainian playing for just the fifth time on the European tour, made the cut at 5 under.