Day-one of WorldSBK free practice at Donington Park belonged to circuit debutant Garrett Gerloff. 

The American’s stunning time-attack lap of 1:27.524s was over three tenths quicker than top two in the championship Jonathan Rea and Toprak Razgatlioglu.

WorldSBK Donington Park, Great Britain - Free Practice Results (2)
PosRiderNatTeamTime
1Garrett GerloffUSAGRT Yamaha1:27.524s
2Jonathan ReaGBRKawasaki Racing Team+0.329s
3Toprak RazgatliogluTURPATA Yamaha+0.524s
4Alex LowesGBRKawasaki Racing Team+0.607s
5Scott ReddingGBRAruba.It Ducati+0.626s
6Michael RinaldiITAAruba.It Ducati+0.800s
7Leon HaslamGBRTeam HRC+0.871s
8Lucas MahiasFRAKawasaki Puccetti+0.938s
9Michael Van Der MarkNEDMotorrad BMW WorldSBK Team+1.025s
10Andrea LocatelliITAPATA Yamaha+1.070s
11Tom SykesGBRMotorrad BMW WorldSBK Team+1.145s
12Chaz DaviesGBRGoEleven Ducati+1.540s
13Axel BassaniITAMotocorsa Ducati+1.835s
14Tito RabatSPABarni Ducati+1.890s
15Alvaro BautistaSPATeam HRC+2.044s
16Isaac VinalesSPAOrelac Racing Kawasaki+2.256s
17Luke MosseyGBRPedercini Kawasaki+2.451s
18Eugene LavertyIRLRC Squadra Corse BMW+2.564s
19Jonas FolgerGERBenovo BMW+2.694s
20Christophe PonssonFRAGil Yamaha+2.729s
21Loris CressonBELPedercini Kawasaki+3.879s
22Kohta NozaneJPNGRT Yamaha 

Rea and Alex Lowes were the early pacesetters for Kawasaki, before Razgatlioglu took over top spot with 20 minutes remaining.

As was the case in FP1, Tom Sykes’ session began with a second crash of the day. Razgatlioglu then had a huge moment on the brakes heading into turn 12, but was able to stay aboard his Yamaha R1 after running through the grass. 

Tito Rabat had an excursion through the gravel at turn eight as he gets reacquainted with the British circuit - last visit to Donington Park was 2009. 

Free Practice One

Fresh off a new two-year WorldSBK contract extension with Pata Yamaha, Razgatlioglu was second fastest behind Rea after provisionally topping FP1.

After being stuck in pit lane for 15 minutes due to a technical issue, Razgatlioglu eventually headed out and was immediately on the pace. The 24 year-old went over a tenth quicker than Rea on his final lap, however, the Yamaha rider's time was deleted for exceeding track limits once the session was over. 

It means a time of 1:27.841s was good enough for Rea to retain top spot - only man under the 1m 28s barrier.

Nine-time WorldSBK race winner at Donington Park, Sykes, suffered a cold tyre crash less than five minutes in at the Melbourne Loop. However, Sykes remounted to set some blistering laps at the front of the field.

Sykes was fastest for most of the session, before Rea took over with a quarter of FP1 remaining.  

More lap times were deleted after the session finished, as Scott Redding who was fourth fastest for Aruba.it Ducati was instead relegated to sixth, behind team-mate Michael Rinaldi and Garrett Gerloff who claimed fifth.

British Superstock rider Luke Mossey is replacing Samuele Cavalieri at Pedercini Kawasaki after the Italian rider and team decided to end their partnership. Mossey finished FP1 17th fastest.