Championship leader Toprak Razgatlioglu finished the opening World Superbike practice at Jerez fastest from Michael Rinaldi. 

World Superbike Jerez, Spain - Free Practice Results (1)
PosRiderNatTeamTime
1Toprak RazgatliogluTURPATA Yamaha1:40.074s
2Michael RinaldiITAAruba.it Ducati+0.086s
3Jonathan ReaGBRKawasaki Racing Team+0.337s
4Alex LowesGBRKawasaki Racing Team+0.439s
5Leon HaslamGBRTeam HRC+0.675s
6Andrea LocatelliITAPATA Yamaha+0.692s
7Michael Van Der MarkNEDMotorrad BMW WorldSBK Team+0.699s
8Scott ReddingGBRAruba.It Ducati+0.764s
9Garrett GerloffUSAGRT Yamaha+0.855s
10Axel BassaniITAMotocorsa Ducati+0.856s
11Loris BazFRAGoEleven Ducati+1.017s
12Alvaro BautistaSPATeam HRC+1.099s
13Isaac VinalesSPAOrelac Racing Kawasaki+1.192s
14Leandro MercadoARGMIE Honda Racing+1.228s
15Jonas FolgerGERBenovo BMW+1.243s
16Lucas MahiasFRAKawasaki Puccetti+1.438s
17Christophe PonssonFRAGil Yamaha+1.517s
18Kohta NozaneJPNGRT Yamaha+1.779s
19Marvin FritzGERIXS-YART Yamaha+1.881s
20Eugene LavertyIRLMotorrad BMW WorldSBK Team+2.214s
21Samuele CavalieriSPABarni Ducati+2.429s
22Andrea MantovaniITAVince64 Racing Kawasaki+2.444s
23Loris CressonBELPedercini Kawasaki+3.409s
24Lachlan EpisAUSPedercini Kawasaki+5.524s

Jonathan Rea led the way early on before Alex Lowes then bettered his British team-mate. Razgatlioglu was less than a tenth behind the two Kawasaki riders in P3.

Lowes remained top until Rea regained top spot with 18 minutes left. However, Razgatlioglu soon improved on Rea’s time by a further three tenths. 

Winner of race two in Catalunya, Rinaldi jumped into third ahead of Lowes late on, before turning that into second. Rea finished P3 - +0.337 down on his title rival Razgatlioglu. 

Andrea Locatelli suffered an early crash at turn one after running through the gravel and losing the front end at slow speed. 

FIM World Endurance rider Marvin Fritz was back in WorldSBK action for the second time this year after making a wildcard appearance in Most, Czech Republic, while Loris Baz and Eugene Laverty replaced the injured Chaz Davies and Tom Sykes.