Marc Warren, once a World Cup winner, had fallen outside the world's top 1,000 golfers but bounced back to winning form in Austria.
Overnight leader Miguel Angel Jimenez fell five strokes off the pace set by Marc Warren and Nicolai von Dellingshausen in Atzenbrugg.
Miguel Angel Jimenez leads the Austrian Open by two strokes heading into the third round.
The Ryder Cup has been switched to 2021, a move Patrick Reed agrees with as he wants a full crowd present at Whistling Straits.
Joost Luiten carded an opening-round 65 as the European Tour restarted at the Austrian Open.
The Ryder Cup at Whistling Straits was postponed by 12 months on Wednesday, but a further delay has been ruled out.
The 2020 Ryder Cup has been pushed back by 12 months due to the coronavirus pandemic, a decision Jon Rahm supports.
Whistling Straits was set to host the Ryder Cup in September this year, but the tournament has been moved back to 2021.
Ian Poulter showed just how uncomfortable a test for coronavirus can be.
France's 2018 World Cup campaign began with an unconvincing 2-1 win over Australia exactly two years ago, on June 16.