Jordan Smith take a two-shot lead into the weekend at the DP World Tour clash in Hamburg.
The 29-year-old hit back from an early bogey to register five birdies that carried him to six under par.
France's Victor Perez sits second after two rounds at four under, with Julien Brun, Joakim Lagergren and Niklas Norgaard Moller at three under par.
Chippenham-born Smith claimed his maiden DP World Tour title in 2017 at the same event, and now sits 13th in the tour rankings.
"I have really good memories of most of the holes around here," said Smith.
"Winning back then, even though it was five years ago, I still remember a lot of it.
"I'm looking forward to continuing the good stuff and seeing how the weekend goes."
All three of Ireland's representatives at the tournament missed the cut, with Niall Kearney, Cormac Sharvin and Jonathan Caldwell missing out on the weekend's action.
Kearney was closest of the three to making the cut mark of +4 but his second round of 72 left him two shots from safety on +6 for the tournament.