The former world record holder set a distance of 221.5 metres on the hill at Kranjska Gora to earn 204.7 points in sunny conditions.
Australian Andreas Kofler was second ahead of Lukas Hlava of Czech Republic.
Gregor Schlierenzauer and Martin Koch, who had very good jumps in training, decided to skip qualifying ahead of the final three days of competition this season.
Results
1.ROMOEREN Bjoern Einar NOR 221.5 204.7
2. KOFLER Andreas AUT 209.5 199.5
3. HLAVA Lukas CZE 211.5 199.4
4. FANNEMEL Anders NOR 213.0 195.2
5. ZYLA Piotr POL 206.5 189.6
6. FREITAG Richard GER 199.5 186.4
7. WANK Andreas GER 198.5 182.5
7. BRESADOLA Davide ITA 204.5 182.5
9. LOITZL Wolfgang AUT 198.0 181.0
10. KASAI Noriaki JPN 199.5 180.6
