Cameron’s 17^th of 32 laps for the #6 Acura Team Penske ARX-05 was a 1min12.675sec, the fastest lap of the weekend, and remained a tantalizing 0.088sec clear of teammate Helio Castroneves’ 42^nd-lap attempt to go P1.

The best of the rest was Jonathan Bomarito in the #55 Mazda RT24-P, who was 1.092 sec adrift of top time, but ahead of Colin Braun’s best in the CORE Autosport Oreca, and Oli Jarvis in the second Mazda.

Stephen Simpson (JDC Miller Oreca) and Pipo Derani (ESM Nissan) were sixth and seventh, ahead of the quickest Cadillac DPi-V.R, that of Wayne Taylor Racing.

In GT Le Mans, Earl Bamber put the #912 Porsche 911 RSR on top again, in front of Antonio Garcia’s #3 Corvette C7.R, Jesse Krohn in the Rahal Letterman Lanigan Racing BMW M8 and Nick Tandy in the second Porsche.

Madison Snow’s Paul Miller Racing Lamborghini Huracan claimed GT Daytona’s top time, ahead of the 3GT Lexus RC Fs of Kyle Marcelli and Jack Hawksworth. Fourth and fifth went to the pair of Michael Shank Racing-run Acura NSXs of Katherine Legge and Lawson Aschenbach.

Qualifying starts at 12.05pm local (Eastern Time).

IMSA Mid-Ohio, third practice

Cla	Num	Driver	Class	Chassis	Laps	Time	Gap	Interval	km/h
1	6	Juan Pablo Montoya Dane Cameron	P	Acura DPi	32	1'12.675			111.851
2	7	Helio Castroneves Ricky Taylor	P	Acura DPi	42	1'12.763	0.088	0.088	111.716
3	55	Spencer Pigot Jonathan Bomarito	P	Mazda DPi	34	1'13.767	1.092	1.004	110.196
4	54	Jon Bennett Colin Braun	P	ORECA LMP2	39	1'13.940	1.265	0.173	109.938
5	77	Oliver Jarvis Tristan Nunez	P	Mazda DPi	35	1'14.014	1.339	0.074	109.828
6	99	Mikhail Goikhberg Stephen Simpson	P	ORECA LMP2	34	1'14.041	1.366	0.027	109.788
7	22	Pipo Derani Johannes van Overbeek	P	Nissan DPi	37	1'14.068	1.393	0.027	109.748
8	10	Jordan Taylor Renger van der Zande	P	Cadillac DPi	36	1'14.103	1.428	0.035	109.696
9	31	Eric Curran Felipe Nasr	P	Cadillac DPi	39	1'14.295	1.620	0.192	109.412
10	85	Simon Trummer Robert Alon	P	ORECA LMP2	38	1'14.350	1.675	0.055	109.332
11	52	Gustavo Yacaman Sebastian Saavedra	P	Ligier LMP2	38	1'14.383	1.708	0.033	109.283
12	2	Scott Sharp Ryan Dalziel	P	Nissan DPi	32	1'14.640	1.965	0.257	108.907
13	5	Filipe Albuquerque Joao Barbosa	P	Cadillac DPi	32	1'14.914	2.239	0.274	108.508
14	38	James French Kyle Masson	P	ORECA LMP2	35	1'15.396	2.721	0.482	107.815
15	912	Earl Bamber Laurens Vanthoor	GTLM	Porsche 911 RSR	36	1'18.590	5.915	3.194	103.433
16	3	Jan Magnussen Antonio Garcia	GTLM	Corvette C7.R	37	1'18.972	6.297	0.382	102.933
17	24	John Edwards Jesse Krohn	GTLM	BMW M8 GTE	36	1'19.111	6.436	0.139	102.752
18	911	Nick Tandy Patrick Pilet	GTLM	Porsche 911 RSR	34	1'19.227	6.552	0.116	102.601
19	67	Ryan Briscoe Richard Westbrook	GTLM	Ford GT	34	1'19.423	6.748	0.196	102.348
20	25	Connor de Phillippi Alexander Sims	GTLM	BMW M8 GTE	36	1'19.438	6.763	0.015	102.329
21	66	Joey Hand Dirk Müller	GTLM	Ford GT	30	1'19.484	6.809	0.046	102.270
22	4	Oliver Gavin Tommy Milner	GTLM	Corvette C7.R	38	1'19.566	6.891	0.082	102.164
23	48	Bryan Sellers Madison Snow	GTD	Lamborghini Huracan GT3	36	1'20.400	7.725	0.834	101.104
24	14	Kyle Marcelli Dominik Baumann	GTD	Lexus RC F GT3	29	1'20.417	7.742	0.017	101.083
25	15	David Heinemeier Hansson Jack Hawksworth	GTD	Lexus RC F GT3	27	1'20.537	7.862	0.120	100.932
26	86	Alvaro Parente Katherine Legge	GTD	Acura NSX GT3	33	1'20.600	7.925	0.063	100.854
27	93	Justin Marks Lawson Aschenbach	GTD	Acura NSX GT3	35	1'20.622	7.947	0.022	100.826
28	96	Bill Auberlen Dillon Machavern	GTD	BMW M6 GT3	39	1'20.647	7.972	0.025	100.795
29	44	Andy Lally John Potter	GTD	Audi R8 LMS GT3	35	1'20.796	8.121	0.149	100.609
30	63	Cooper MacNeil Alessandro Balzan	GTD	Ferrari 488 GT3	34	1'20.902	8.227	0.106	100.477
31	58	Patrick Long Christina Nielsen	GTD	Porsche 911 GT3 R	36	1'21.024	8.349	0.122	100.326
32	75	Kenny Habul Maro Engel	GTD	Mercedes-AMG GT3	33	1'21.174	8.499	0.150	100.140
33	33	Jeroen Bleekemolen Ben Keating	GTD	Mercedes-AMG GT3	35	1'21.187	8.512	0.013	100.124
34	16	Wolf Henzler Michael Schein