Rolex 24: Bourdais leads final practice in Ganassi Cadillac

Bourdais posted a 1m34.732s to head the times 15 minutes from the end of the one-hour session, eclipsing his 1m34.949s that put the #01 Cadillac DPi-V.R at top of the timesheets early in another session affected by rain. 

The track was slightly damp when the green flag was waved and there were further spots of rain mid-session, but times were coming down when the session was red-flagged with just under 10 minutes remaining. 

The session yielded the first representative times of the week ahead of a race that will be held in dry but cold conditions according to weather forecasts. 

Bourdais's lap compared with the fastest practice lap of 1m34.351s from last weekend's pre-race Roar test and the 1m34.034s that gave JDC-Miller driver Tristan Vautier pole position for the grid-setting 100-mile qualifying race

Loic Duval had just gone second in the JDC-Miller Caddy when the interruption came, the Frenchman posting a 1m35.095s. 

Jose Maria Lopez ended up third fastest quickest in the best of the Action Express Racing Cadillacs with a 1m35.235.

Earl Bamber took fourth with a 1m35.587s in the second Ganassi car and Action Express driver Pipo Derani fifth with a 1m35.959s as Cadillac locked out the top five positions. 

The two Acuras jumped up the order straight after the session restarted with five minutes left on the clock.

A 1m36.049s from Alex Rossi put the Wayne Taylor Racing Acrua ARX-05 sixth, while Tom Blomqvist improved to 1m36.347s to end up seventh. 

The late run from the Acuras demoted Phil Hanson in the fastest of the LMP2s to eighth position overall. The Briton's 1m37.639s in the United Autosports Oreca put him just five hundredths ahead of Ferdinand Habsburg's 1m37.689s in the Tower Motorsport entry. 

Harry Tincknell was a further two tenths back and third in class in the PR1/Mathiasen Oreca.

Mirko Bortolotti led the GT Daytona Pro field in his TR3 Racing Lamborghini Huracan GT3 Evo. The Italian's 1m46.085s put him two tenths up on Matteo Cairoli's 1m46.334s in the Proton-run WeatherTech Racing Porsche 911 GT3 R. 

Jack Hawksworth took third in the best of the Vasser Sullivan Lexus R CF GT3s. The Briton's 1m46.372s was just a couple of hundredths faster than Jan Heylen managed in the Wright Motorsports Porsche to head the GTD pro-am class times. 

Andretti Autosport led the way in LMP3, Rasmus Lindh's 1m44.015s in his Ligier JS P320 giving him nearly a half-second margin on Moritz Kranz in the fastest of the Muehlner Motorsport Duqueine D08.

The session was the final time the 61-car field will take to the track ahead of the race, which starts at 1:40pm local (Eastern) time on Saturday.

Practice times:

Cla	Num	Driver	Class	Chassis	Time	Gap
1	01	Renger van der Zande Sébastien Bourdais Scott Dixon Alex Palou	DPi	Cadillac DPi	1'34.732
2	5	Tristan Vautier Richard Westbrook Loic Duval Ben Keating	DPi	Cadillac DPi	1'35.095	0.363
3	48	Mike Rockenfeller Kamui Kobayashi Jimmie Johnson Jose Maria Lopez	DPi	Cadillac DPi	1'35.235	0.503
4	02	Earl Bamber Alex Lynn Marcus Ericsson Kevin Magnussen	DPi	Cadillac DPi	1'35.587	0.855
5	31	Pipo Derani Tristan Nunez Mike Conway	DPi	Cadillac DPi	1'35.959	1.227
6	10	Ricky Taylor Filipe Albuquerque Alexander Rossi Will Stevens	DPi	Acura DPi	1'36.049	1.317
7	60	Oliver Jarvis Tom Blomqvist Helio Castroneves Simon Pagenaud	DPi	Acura DPi	1'36.347	1.615
8	22	Jim McGuire Guy Smith Philip Hanson Will Owen	LMP2	ORECA LMP2 07	1'37.639	2.907
9	8	John Farano Louis Deletraz Rui Pinto Ferdinand Habsburg	LMP2	ORECA LMP2 07	1'37.689	2.957
10	11	Thomas Steven Josh Pierson Jonathan Bomarito Harry Tincknell	LMP2	ORECA LMP2 07	1'37.864	3.132
11	52	Ben Keating Mikkel Jensen Scott Huffaker Nicolas Lapierre	LMP2	ORECA LMP2 07	1'37.938	3.206
12	29	Frits van Eerd Giedo van der Garde Murry Dylan Rinus van Kalmthout	LMP2	ORECA LMP2 07	1'38.186	3.454
13	69	John Falb James Allen Luca Ghiotto Tijmen van	LMP2	ORECA LMP2 07	1'38.214	3.482
14	81	Eric Lux Devlin DeFrancesco Patricio O'Ward Colton Herta	LMP2	ORECA LMP2 07	1'38.286	3.554
15	18	Dwight Merriman Kyle Tilley Ryan Dalziel Paul-Loup Chatin	LMP2	ORECA LMP2 07	1'38.362	3.630
16	20	Dennis Andersen Anders Fjordbach Fabio Scherer Nico Mueller	LMP2	ORECA LMP2 07	1'39.046	4.314
17	68	François Heriau Oliver Rasmussen Ed Jones René Rast	LMP2	ORECA LMP2 07	1'39.359	4.627
18	36	Jarett Andretti Josh Burdon Rasmus Lindh Gabby Chaves	LMP3	Ligier JS P320	1'43.594	8.862
19	6	Efrin Castro Moritz Kranz Ori Ayrton Joel Miller	LMP3	Duqueine D08	1'44.384	9.652
20	26	Nolan Siegel Cameron Shields Charles Crews Ugo De	LMP3	Duqueine D08	1'44.465	9.733
21	7	Mark Kvamme Austin McCusker Trenton Estep Antoine Doquin	LMP3	Duqueine D08	1'44.605	9.873
22	33	Joao Barbosa Malthe Jakobsen Seb Priaulx Lance Willsey	LMP3	Ligier JS P320	1'44.879	10.147
23	13	Orey Fidani Kuno Wittmer Lars Kern Matthew Bell	LMP3	Duqueine D08	1'45.229	10.497
24	63	Marco Mapelli Andrea Caldarelli Mirko Bortolotti Rolf Ineichen	GTD PRO	Lamborghini Huracan GT3	1'46.085	11.353
25	79	Cooper MacNeil Julien Andlauer Matteo Cairoli Alessio Picariello	GTD PRO	Porsche 911 GT3 R	1'46.334	11.602
26	14	Jack Hawksworth Ben Barnicoat Kyle Kirkwood	GTD PRO	Lexus RC F GT3	1'46.372	11.640
27	16	Ryan Hardwick Zacharie Robichon Jan Heylen Richard Lietz	GTD	Porsche 911 GT3 R	1'46.399	11.667
28	97	Cooper MacNeil Daniel Juncadella Maro Engel Jules Gounon	GTD PRO	Mercedes-AMG GT3	1'46.534	11.802
29	15	Dirk Muller Patrick Assenheimer Austin Cindric	GTD PRO	Mercedes-AMG GT3	1'46.595	11.863
30	9	Matt Campbell Mathieu Jaminet Felipe Nasr	GTD PRO	Porsche 911 GT3 R	1'46.622	11.890
31	75	Kenny Habul Luca Stolz Raffaele Marciello Fabian Schiller	GTD	Mercedes-AMG GT3	1'46.685	11.953
32	2	Laurens Vanthoor Patrick Pilet Dennis Olsen Alexandre Imperatori	GTD PRO	Porsche 911 GT3 R	1'46.730	11.998
33	28	Michael de Quesada Daniel Morad Linus Lundqvist Maximillian Goetz	GTD	Mercedes-AMG GT3	1'46.856	12.124
34	32	Mike Skeen Guy Cosmo Stevan McAleer Scott Andrews	GTD	Mercedes-AMG GT3	1'46.930	12.198
35	66	Kyffin Simpson Till Bechtolsheimer Marc Miller Mario Farnbacher	GTD	Acura NSX GT3	1'46.936	12.204
36	71	Franck Perera LLarena Mateo Paul Maximilian Mikhail Goikhberg	GTD	Lamborghini Huracan GT3	1'46.942	12.210
37	64	Ted Giovanis Hugh Plumb Matt Plumb Owen Trinkler	GTD	Porsche 911 GT3 R	1'47.037	12.305
38	62	Alessandro Pier Guidi James Calado Daniel Serra Davide Rigon	GTD PRO	Ferrari 488 GT3	1'47.120	12.388
39	38	Dan Goldburg Hikaru Abe Garett Grist Nicolas Pino	LMP3	Ligier JS P320	1'47.125	12.393
40	4	Tommy Milner Nick Tandy Marco Sorensen	GTD PRO	Corvette C8.R GTD	1'47.167	12.435
41	99	Rob Ferriol Katherine Legge Stefan Wilson Nicholas Boulle	GTD	Porsche 911 GT3 R	1'47.199	12.467
42	34	Kyle Washington James Sofronas Jeroen Bleekemolen Klaus Bachler	GTD	Porsche 911 GT3 R	1'47.204	12.472
43	12	Frankie Montecalvo Aaron Telitz Richard Heistand Townsend Bell	GTD	Lexus RC F GT3	1'47.269	12.537
44	23	Ross Gunn Alex Riberas Maxime Martin	GTD PRO	Aston Martin Vantage GT3	1'47.294	12.562
45	96	Robby Foley Bill Auberlen Michael Dinan Jens Klingmann	GTD	BMW M4 GT3	1'47.360	12.628
46	25	Connor de Phillippi John Edwards Augusto Farfus Jesse Krohn	GTD PRO	BMW M4 GT3	1'47.363	12.631
47	27	Roman De Angelis Ian James Darren Turner Tom Gamble	GTD	Aston Martin Vantage GT3	1'47.371	12.639
48	57	Russell Ward Philip Ellis Mikael Grenier Lucas Auer	GTD	Mercedes-AMG GT3	1'47.416	12.684
49	70	Brendan Iribe Frederik Schandorff Ollie Millroy Jordan Lee Pepper	GTD	McLaren 720S GT3	1'47.443	12.711
50	47	Roberto Lacorte Giorgio Sernagiotto Antonio Fuoco Alessio Rovera	GTD	Ferrari 488 GT3	1'47.559	12.827
51	59	Lance Bergstein Jon Miller Patrick Gallagher Paul Holton	GTD	McLaren 720S GT3	1'47.569	12.837
52	98	Paul Dalla Lana David Pittard Charlie Eastwood Nicki Thiim	GTD	Aston Martin Vantage GT3	1'47.780	13.048
53	44	John Potter Andy Lally Spencer Pumpelly Jonathan Adam	GTD	Aston Martin Vantage GT3	1'47.878	13.146
54	3	Antonio Garcia Jordan Taylor Nick Catsburg	GTD PRO	Corvette C8.R GTD	1'47.924	13.192
55	39	Robert Megennis Corey Lewis Sandy Mitchell Jeff Westphal	GTD	Lamborghini Huracan GT3	1'48.580	13.848
56	21	Mann Simon Luis Perez Companc Nicklas Nielsen Toni Vilander	GTD	Ferrari 488 GT3	1'48.766	14.034
57	24	Philipp Eng Marco Wittmann Nick Yelloly Sheldon Van Der Linde	GTD PRO	BMW M4 GT3	1'48.873	14.141
58	42	Don Yount Benja Hites Jaden Conwright Markus Palttala	GTD	Lamborghini Huracan GT3	1'49.166	14.434
59	19	Bill Sweedler John Megrue Giacomo Altoè Jeff Segal	GTD	Lamborghini Huracan GT3	1'49.191	14.459
60	54	Jon Bennett Colin Braun George Kurtz Nic Jönsson	LMP3	Ligier JS P320	0.000
61	74	Gar Robinson Felipe Fraga Kay van Berlo Michael Cooper	LMP3	Ligier JS P320	0.000
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