Jonathan Rea finishes FP1 for the Catalan WorldSBK fastest from championship rival Toprak Razgatlioglu. 

WorldSBK Catalunya, Spain - Free Practice Results (1)
1Jonathan ReaGBRKawasaki Racing Team1:42.419s
2Toprak RazgatliogluTURPATA Yamaha+0.159s
3Tom SykesGBRMotorrad BMW WorldSBK Team+0.189s
4Alex LowesGBRKawasaki Racing Team+0.279s
5Andrea LocatelliITAPATA Yamaha+0.296s
6Leon HaslamGBRTeam HRC+0.324s
7Michael RinaldiITAAruba.It Ducati+0.353s
8Michael Van Der MarkNEDMotorrad BMW WorldSBK Team+0.444s
9Garrett GerloffUSAGRT Yamaha+0.500s
10Isaac VinalesSPAOrelac Racing Kawasaki+0.763s
11Axel BassaniITAMotocorsa Ducati+0.789s
12Lucas MahiasFRAKawasaki Puccetti+0.959s
13Scott ReddingGBRAruba.It Ducati+0.959s
14Alvaro BautistaSPATeam HRC+1.079s
15Chaz DaviesGBRGoEleven Ducati+1.092s
16Jonas FolgerGERBenovo BMW+1.311s
17Kohta NozaneJPNGRT Yamaha+1.479s
18Leandro MercadoARGMIE Honda Racing+1.594s
19Samuele CavalieriSPABarni Ducati+1.602s
20Christophe PonssonFRAGil Yamaha+1.932s
21Loris CressonBELPedercini Kawasaki+3.728s

After enjoying a recent two-day test in Barcelona, Rea was able to use the extra data gathered aboard his Ninja ZX-10RR to immediately set the pace. 

Alex Lowes was second quickest following the initial flurry of laps before championship leader Razgatlioglu split the two KRT riders.  

Tom Sykes moved up to third with a quarter of the session remaining, while Andrea Locatelli continued to impress in fifth. 

With less than ten minutes remaining, Locatelli improved his time again which resulted in the top five being separated by just three tenths. 

Times and positions inside the top five remained unchanged during the final few minutes, while Garrett Gerloff moved up from 14th to eighth.