Alex Lowes now fastest on the Bimota, just under a tenth clear of Petrucci.
Early pace had been set by Jonathan Rea, but Danilo Petrucci now fastest by 0.355s over the Pata Yamaha rider.
Decent start for the injured Italian, Petrucci coming in after suffering a hand injury this week.
Early crash for Tarran Mackenzie. He's up and ok and trying to get the bike going again on the service road.
Pit lane is open in Estoril and we are underway for 45 minutes of FP1.
Already at 25C air temperature and 26C track temperature ahead of this first session of the weekend.
If you remember back to last year's Estoril WorldSBK, there was plenty of inconsistency in the conditions. That is not true of this weekend. Cloudless skies hang above the Circuito do Estoril at present ahead of FP1, and conditions look stable throughout the weekend.
Welcome to live coverage of the Friday practice sessions from the Estoril WorldSBK. FP1 will be coming up shortly at 10:35 local time.