Chaz Davies has ended Jonathan Rea's 100% win record at the start to the 2017 World Superbike championship with victory in race two at Aragon.
After Davies suffered heartbreak in the Aragon opener when he fell from the lead on the penultimate lap, the climax to the second race had a repeat look to it with Davies reeling in Rea to take the lead with five laps remaining.
The Aruba.it Racing Ducati rider blitzed the times by setting the fastest lap of the race on the penultimate lap but still had Rea in close company for the final lap. Rea, who appeared faster in the mid-speed corners, had two attempts to pass Davies up the inside but the Welsh rider held firm to block off his title rival's attacks.
At the exit to turn 15 on the last lap the two appeared to touch at the corner exit but with Davies ahead he kept his momentum on the long back straight to ease away from Rea and clinch the win by almost half a second.
Marco Melandri had been a close contender for the majority of the race but his pace dipped over the final two laps and was forced to settle for third but comfortably in front of Sykes.
Michael van der Mark led the Pata Yamaha charge in fifth place after pole-sitter in the race two grid shake-up Alex Lowes ran on at turn 14 on lap 11 which saw him drop from fifth to 13th.
Xavi Fores recovered from his fiery exit in race one to place the Barni Ducati in sixth ahead of fellow Spaniard Jordi Torres as Leandro Mercado won the battle of the Aprilias with eighth place for IodaRacing ahead of Eugene Laverty on the Milwaukee Aprilia.
Leon Camier capped a tricky race weekend with tenth place for MV Agusta in front of Roman Ramos for Team Go Eleven Kawasaki and Stefan Bradl on the Red Bull Honda.
Full WorldSBK race two results:
1. Chaz Davies GBR Aruba.it Racing Ducati 1199R 18 laps
2. Jonathan Rea GBR Kawasaki Racing ZX-10R +0.483s
3. Marco Melandri ITA Aruba.it Racing Ducati 1199R +2.479s
4. Tom Sykes GBR Kawasaki Racing ZX-10R +10.562s
5. Michael van der Mark NED PATA Yamaha YZF-R1 +13.336s
6. Xavi Fores ESP Barni Ducati 1199R +16.951s
7. Jordi Torres ESP Althea BMW S1000RR +18.638s
8. Leandro Mercado ITA IodaRacing Aprilia RSV4 +18.700s
9. Eugene Laverty IRE Milwaukee Aprilia RSV4 +21.290s
10. Leon Camier GBR MV Agusta RC F4 RR +22.246s
11. Roman Ramos ESP Team Go Eleven Kawasaki ZX-10R +24.307s
12. Stefan Bradl GER Red Bull Honda CBR1000RR SP2 +25.829s
13. Alex Lowes GBR PATA Crescent Yamaha R1 +26.611s
14. Randy Krummenacher SWI Puccetti Kawasaki ZX-10R +40.575s
15. Julian Simon SPA Milwaukee Aprilia RSV4 +40.769s
16. Markus Reiterberger GER Althea BMW S1000RR +40.915s
17. Ayrton Badovini ITA Grillini Kawasaki ZX-10R +1m
Did not finish
Alex de Angelis SMR Pedercini Kawasaki ZX-10R
Riccardo Russo ITA Guandalini Yamaha YZF-R1
Nicky Hayden USA Red Bull Honda CBR1000RR SP2
Did not start
Ondrej Jezek CZE Grillini Kawasaki ZX-10R