Two-time Le Mans 24 Hours winner Romain Dumas jumped to the top of the times just before a short but heavy shower soon after the halfway point of the one-hour practice period on Wednesday.
The Frenchman posted the only time below the 1m50s mark with a 1m49.738s aboard the solo Glickenhaus 007 LMH, which gave him a half second margin at the top of the times.
The lap vaulted Dumas ahead of the best of the Toyota GR010 Hybrids, which was further demoted to third by Matthieu Vaxiviere in the Alpine A480 grandfathered LMP1 just before the shower.
Vaxiviere’s 1m50.263s just shaded Sebastien Buemi’s earlier 1m50.267s, which put the #8 Toyota third in the final times.
A wet track surface after the rain abated for the final 20 or so minutes of the session meant there were no further improvements.
The Realteam by WRT Oreca 07 was fourth overall and fastest in LMP2 in Ferdinand Habsburg’s hands. His 1m50.477s compared with Jose Maria Lopez’s 1m50.633s in the second Toyota in fifth position.
Prema Powerteam took sixth and second in LMP2 with a 1m51.068s from Louis Deletraz, while Paul di Resta and Rene Rast were next up in the lead United Autosports and second WRT cars respectively.
Times were slower over the session than in last weekend’s official pre-season test at the Sebring International Raceway after the track had been washed clean of rubber by heavy storms overnight.
Habsburg was quickest across the four sessions on Saturday and Sunday with a 1m48.089s, while Nicolas Lapierre was fastest in the Hypercar class with a 1m48.497s.
Kevin Estre was quickest in GTE Pro for Porsche, his 1m58.827s putting him less than six hundredths up on teammate Gianmaria Bruni’s 1m58.881s in the sister factory 911 RSR-19.
Matteo Cairoli was quickest in GTE Am for the Project 1 Porsche team on a 1m58.906, which stood as third best in GTE overall.
Tommy Milner was third in the solo Chevrolet Corvette C8.R with a 1m59.839s, which was a second off the class pace.
The two AF Corse-run Ferrari 488 GTE Evos failed to break the two-minute barrier on the way to fourth and fifth positions.
The second of the three one-hour sessions starts at 4:25pm local time at Sebring.
Watch WEC 1000 Miles of Sebring qualifying and the race live on Motorsport.tv (geo-restrictions may apply).
Practice results:
| Cla | # | Drivers | Car | Class | Time | Gap |
|---|---|---|---|---|---|---|
| 1 | 708 |
 Olivier Pla Romain Dumas  Ryan Briscoe | Glickenhaus 007 LMH | HYPERCAR | 1'49.738 | |
| 2 | 36 |
 Andre Negrao Nicolas Lapierre Matthieu Vaxiviere | Alpine A480 | HYPERCAR | 1'50.263 | 0.525 |
| 3 | 8 |
 Sébastien Buemi  Brendon Hartley  Ryo Hirakawa | Toyota GR010 - Hybrid | HYPERCAR | 1'50.267 | 0.529 |
| 4 | 41 |
 Rui Andrade  Ferdinand Habsburg Norman Nato | Oreca 07 | LMP2 | 1'50.477 | 0.739 |
| 5 | 7 |
 Mike Conway Kamui Kobayashi  Jose Maria Lopez | Toyota GR010 - Hybrid | HYPERCAR | 1'50.633 | 0.895 |
| 6 | 9 |
 Robert Kubica Louis Deletraz  Lorenzo Colombo | Oreca 07 | LMP2 | 1'51.068 | 1.330 |
| 7 | 23 |
Paul di Resta Oliver Jarvis  Josh Pierson | Oreca 07 | LMP2 | 1'51.218 | 1.480 |
| 8 | 31 |
 Sean Gelael  Robin Frijns  René Rast | Oreca 07 | LMP2 | 1'51.533 | 1.795 |
| 9 | 45 |
Thomas Steven James Allen Rene Binder | Oreca 07 | LMP2 | 1'51.683 | 1.945 |
| 10 | 1 |
Lilou Wadoux Sébastien Ogier Charles Milesi | Oreca 07 | LMP2 | 1'52.056 | 2.318 |
| 11 | 22 |
Philip Hanson Filipe Albuquerque Will Owen | Oreca 07 | LMP2 | 1'52.070 | 2.332 |
| 12 | 28 |
 Oliver Rasmussen Edward Jones  Jonathan Aberdein | Oreca 07 | LMP2 | 1'52.193 | 2.455 |
| 13 | 35 |
Jean Baptiste Lahaye Matthieu Lahaye Frangois Heriau | Oreca 07 | LMP2 | 1'52.360 | 2.622 |
| 14 | 5 |
Dane Cameron Emmanuel Collard Felipe Nasr | Oreca 07 | LMP2 | 1'52.614 | 2.876 |
| 15 | 34 |
Jakub Smiechowski Alex Brundle  Esteban Gutierrez | Oreca 07 | LMP2 | 1'52.682 | 2.944 |
| 16 | 44 |
 Miro Konopka Mathias Beche Tijmen van der Helm | Oreca 07 | LMP2 | 1'52.772 | 3.034 |
| 17 | 83 |
François Perrodo Nicklas Nielsen Alessio Rovera | Oreca 07 | LMP2 | 1'52.783 | 3.045 |
| 18 | 38 |
Roberto Gonzalez Antonio Felix da Costa Will Stevens | Oreca 07 | LMP2 | 1'52.975 | 3.237 |
| 19 | 10 |
Nico Müller  Ryan Cullen Mike Rockenfeller | Oreca 07 | LMP2 | 1'53.650 | 3.912 |
| 20 | 92 |
Michael Christensen Kevin Estre | Porsche 911 RSR - 19 | LMGTE PRO | 1'58.827 | 9.089 |
| 21 | 91 |
Gianmaria Bruni Richard Lietz | Porsche 911 RSR - 19 | LMGTE PRO | 1'58.881 | 9.143 |
| 22 | 46 |
Matteo Cairoli Mikkel Pedersen Nicolas Leutwiler | Porsche 911 RSR - 19 | LMGTE AM | 1'58.906 | 9.168 |
| 23 | 64 |
Tommy Milner Nick Tandy | Chevrolet Corvette C8.R | LMGTE PRO | 1'59.839 | 10.101 |
| 24 | 88 |
Fred Poordad Patrick Lindsey Julien Andlauer | Porsche 911 RSR - 19 | LMGTE AM | 1'59.871 | 10.133 |
| 25 | 98 |
 Paul Dalla Lana David Pittard Nicki Thiim | Aston Martin Vantage AMR | LMGTE AM | 2'00.253 | 10.515 |
| 26 | 56 |
Brendan Iribe Ollie Millroy Ben Barnicoat | Porsche 911 RSR - 19 | LMGTE AM | 2'00.283 | 10.545 |
| 27 | 51 |
Alessandro Pier Guidi James Calado | Ferrari 488 GTE EVO | LMGTE PRO | 2'00.298 | 10.560 |
| 28 | 77 |
Christian Ried Sebastian Priaulx Harry Tincknell | Porsche 911 RSR - 19 | LMGTE AM | 2'00.479 | 10.741 |
| 29 | 71 |
Franck Dezoteux Pierre Ragues Gabriel Aubry | Ferrari 488 GTE EVO | LMGTE AM | 2'00.563 | 10.825 |
| 30 | 52 |
 Miguel Molina Antonio Fuoco | Ferrari 488 GTE EVO | LMGTE PRO | 2'01.037 | 11.299 |
| 31 | 60 |
Claudio Schiavoni Matteo Cressoni Giancarlo Fisichella | Ferrari 488 GTE EVO | LMGTE AM | 2'01.557 | 11.819 |
| 32 | 33 |
Ben Keating Florian Latorre Marco Sorensen | Aston Martin Vantage AMR | LMGTE AM | 2'01.683 | 11.945 |
| 33 | 85 |
Rahel Frey Michelle Gatting  Sarah Bovy | Ferrari 488 GTE EVO | LMGTE AM | 2'01.942 | 12.204 |
| 34 | 777 |
Satoshi Hoshino Tomonobu Fujii Charles Fagg | Aston Martin Vantage AMR | LMGTE AM | 2'02.183 | 12.445 |
| 35 | 54 |
Thomas Flohr Francesco Castellacci Nick Cassidy | Ferrari 488 GTE EVO | LMGTE AM | 2'04.002 | 14.264 |
| 36 | 21 |
Simon Mann Christoph Ulrich  Toni Vilander | Ferrari 488 GTE EVO | LMGTE AM | ||
| View full results | ||||||
