Marco Sorensen made it back-to-back Formula Renault 3.5 wins at Spielberg with another victory from pole position in race two.
The Lotus driver controlled the race, and fended off a strong attack from Kevin Magnussen after a restart, to complete his lockout of the weekend.
Magnussen, who had been unable to keep with his countryman prior to the safety car period in the closing stages, eventually settled for second ahead of Nigel Melker.
The championship leader had passed Melker on the opening lap, as the Dutchman recovered from getting tapped at Turn 1 by a spinning Stoffel Vandoorne.
Melker pitted earlier than the leaders in a bid to make up ground, but Sorensen and Magnussen were comfortably clear of him when they emerged from the pits two laps later.
Behind the podium finishers, 2014 Sauber Formula 1 prospect Sergey Sirotkin took advantage of making a late mandatory stop to climb up the order to fifth, before he dived past Will Stevens at Turn 3 on lap 18 to take fourth.
Stevens later lost out to Will Buller as well, but he still moved up to third in the championship thanks to Antonio Felix da Costa failing to get off the line at the start and having to retire.
Da Costa's disastrous weekend, which included an overnight engine change after his overheating problems in race one, means he has dropped to fifth in the standings behind Melker as well.
Vandoorne later pulled into the pits to retire, meaning he lost significant ground in the title race, too. The Belgian, is now 30 points adrift of Magnussen, having come into this weekend as the championship leader.
Results - 33 laps:
Pos Driver Team Time/Gap
1. Marco Sorensen Lotus 45m42.658s
2. Kevin Magnussen DAMS +4.517s
3. Nigel Melker Tech 1 +5.422s
4. Sergey Sirotkin ISR +7.117s
5. Will Buller Zeta +11.004s
6. Will Stevens P1/Strakka +12.937s
7. Marlon Stockinger Lotus +14.054s
8. Nico Muller Draco +14.416s
9. Pietro Fantin Arden Caterham +16.899s
10. Norman Nato DAMS +18.254s
11. Andre Negrao Draco +18.956s
12. Yann Cunha AV +23.509s
13. Jazeman Jaafar Carlin +24.729s
14. Christopher Zanella ISR +25.283s
15. Matias Laine P1/Strakka +28.566s
16. Oliver Webb Fortec +28.813s
17. Daniil Move Comtec +29.903s
18. Mikhail Aleshin Tech 1 +35.064s
19. Zoel Amberg Pons +2 laps
20. Arthur Pic AV +2 laps
Lucas Foresti Comtec 30 laps
Riccardo Agostini Zeta 24 laps
Carlos Huertas Carlin 20 laps
Stoffel Vandoorne Fortec 9 laps
Nikolay Martsenko Pons 2 laps
Antonio Felix da Costa Arden Caterham 0 laps