First lap times are in now and it's Andrea Locatelli who leads here early on ahead of Axel Bassani and Sam Lowes.
FP2 is underway in Assen for the next 45 minutes.
There will be work to do this afternoon for Xavi Vierge, who completed only one timed lap this morning before an issue with his Honda kept him stuck in the garage for the vast majority of the session.
It was a strong morning for Dominique Aegerter, too, in fifth place, while Andrea Iannone was fourth-fastest as he looks to bounce back from a tough Portuguese Round.
Alvaro Bautista was fastest in this morning's FP1 session on a 1:34.365, just over 0.1s ahead of Toprak Razgatlioglu, while Nicolo Bulega was third-fastest.
Welcome back to live coverage of this weekend's Dutch WorldSBK. WorldSSP300 Superpole is just finishing now in Assen (Julio Garcia seems set for pole position, for those interested), and we're just under 15 minutes away from WorldSBK FP2 at 15:00 local time.
That's it for FP1 here in Assen. We'll be back later for coverage of the FP2 session from 15:00 local time.
That's the chequered flag in FP1, and it's Alvaro Bautista fastest from Toprak Razgatlioglu and Nicolo Bulega. A strong morning for all three riders.
Iannone waving arms at Garrett Gerloff in the first of the right handers in the third sector.
Personal best from Bulega, but a 1:34.637 isn't enough to improve on third place for him as we approach the chequered flag now.
Gardner back up into the top-10 and into the 1:34s with a 1:34.988 on his latest lap to go eighth.
Big moment for Alvaro Bautista at turn one, lost the rear in braking and it snapped back pretty sharply. He ran on into the run-off but stayed on the bike.
Bautista back to the top now with a 1:34.365. and Iannone has jumped up to fourth, too - the Italian was on another personal best but pit before completing it just now.
Andrea Iannone up into the top-10 with a 1:35.276 to go seventh as we dip into the final 17 minutes.
A 1:34.467 now from Razgatlioglu increases his advantage to 0.173 seconds.
Razgatlioglu now lapping consistently in the mid-1:34s while most of the riders are in the pits.
Personal best lap from Dominique Aegerter pops him up to fourth place.
And scratch that Aruba.it Ducati 1-2 as Razgatlioglu hits the top for the first time on the BMW. A 1:34.556 puts him 0.084s clear of Bulega.
Bulega back to the top now, 0.016s ahead of Bautista but still an Aruba.it Racing Ducati 1-2 in FP1 at the moment.
A 1:34.679 from Bautista puts him on top.
Toprak Razgatlioglu a bit late with his first representative lap, but a 1:34.933 lifts him from 19th to third.
Remy Gardner briefly to the top, now Bulega back in P1 and 0.3s faster than Gardner now with the first 1:34 of the weekend.
Times continuing to scroll a little early on here. Bautista down to a 1:35.304 now, 0.012s ahead of Alex Lowes.
Saying that, Bulega now goes to the top on a 1:35.259.
Just for your reference for the times to come, the best race lap last year was set by Remy Gardner at a 1:34.295 in Race 2; the race lap record is a 1:33.620 in the 2022 Superpole Race; and the all-time lap record is a 1:32.934 from the 2022 Superpole session.
Alvaro Bautista currently fastest in FP1 on a 1:35.512.