The 2019 Sahlen's Six Hours of the Glen was an endurance race sanctioned by the International Motor Sports Association (IMSA). The race was held at Watkins Glen International in Watkins Glen, New York, on June 30, 2019. This race was the sixth round of the 2019 WeatherTech SportsCar Championship, as well as the third round of the 2019 Michelin Endurance Cup.

International Motor Sports Association's (IMSA) president Scott Atherton confirmed the race was part of the schedule for the 2019 IMSA SportsCar Championship (IMSA SCC) in August 2018.^[1] It was the sixth consecutive year the event was held as part of the WeatherTech SportsCar Championship. The 2019 6 Hours of The Glen was the sixth of twelve sports car races of 2019 by IMSA, and it was the third of four rounds held as part of the Michelin Endurance Cup.^[2] The race was held at the eleven-turn 3.450 mi (5.552 km) Watkins Glen International in Watkins Glen, New York on June 30, 2019.^[3]

IMSA released two separate technical bulletins regarding the Balance of Performance for the six-hour race. The first one was released on May 23, 2019, for the GT Le Mans (GTLM) class. This was done to allow IMSA teams who were preparing for the 24 Hours of Le Mans in three weeks time, notably Corvette Racing and Chip Ganassi Racing, to have the beforehand knowledge of the Balance of Performance for the race so they could prepare better. In this bulletin, the BMW M8 GTE received a 12 horsepower increase, as well as a six liter increase in fuel capacity and turbo boost increase.^[4][5] The second technical bulletin was released on June 19, 2019, which regarded the Balance of Performance for the Daytona Prototype International (DPi) and GT Daytona (GTD) classes. In DPi, after winning the previous two events, Team Penske's Acura ARX-05 was given a 15-kilogram weight increase, giving it the same weight as the Nissan DPi. The Cadillac DPi-V.R was given a 1-liter reduction in fuel capacity. In GT Daytona, despite no McLarens participating in the 6 Hour event, the McLaren 720S was given a power increase of 15 horsepower and made 25 kilograms lighter, in addition to a 12-liter fuel capacity increase. These adjustments made the McLaren 720S the lightest car in the class, as well as having the largest fuel capacity.^[6][7]

Before the race, Pipo Derani and Felipe Nasr led the DPi Drivers' Championship with 152 points, ahead of Dane Cameron and Juan Pablo Montoya in second with 147 points.^[8] In LMP2, Cameron Cassels and Kyle Masson led the Drivers' Championship with 99 points; the duo held a four-point advantage over Matt McMurry.^[8] The GTLM Drivers' Championship was led by Earl Bamber and Laurens Vanthoor with 126 points, 7 points ahead of Antonio García and Jan Magnussen in second followed by Patrick Pilet and Nick Tandy with 117 points in third.^[8] With 84 points, Mario Farnbacher and Trent Hindman led the Drivers' Championship, 4 points clear of Frankie Montecalvo and Townsend Bell.^[8] Cadillac, Porsche, and Lamborghini were leading their respective Manufacturers' Championships, while Whelen Engineering Racing, Performance Tech Motorsports, Porsche GT Team, and Meyer Shank Racing each led their own Teams' Championships.^[8]

A total of 37 cars took part in the event split across four classes.^[9] There were 11 entries in Daytona Prototype international, eight cars in GT Le Mans, 16 in GT Daytona, and just two entrants in the Le Mans Prototype (LMP2) class. In GT Daytona, Sprint-race-only entrants Compass Racing and Lone Star Racing would not be taking part, while endurance-event-only entrants such as Land-Motorsport made their return. Black Swan Racing also returned to the grid after missing the 12 Hours of Sebring due to their team owner Tim Pappas sustaining an injury. As he was still recovering, Marc Miller took his place for The Glen. Joey Hand made a full recovery from suffering symptoms of the flu, and returned to the Chip Ganassi Racing team after being replaced by Sebastien Bourdais for the previous two rounds.

There were three practice sessions preceding the start of the race on Saturday, two on Friday and one on Saturday. The first session on Friday morning lasted 75 minutes while the second session on Friday afternoon lasted one hour. The third on Saturday morning lasted one hour.^[10]

The first practice session took place at 10:25 am ET on Friday and ended with Harry Tincknell topping the charts for Mazda Team Joest, with a lap time of 1:30.690. Hélio Castroneves was second fastest in the No. 7 Acura followed by Dane Cameron in the sister No. 6 Acura Team Penske entry.^[11] Gabriel Aubry set the fastest time in LMP2.^[12] The GTLM class was topped by the No. 67 Ford Chip Ganassi Racing Ford GT of Richard Westbrook with a time of 1:42.673. Dirk Müller was second fastest in the No. 66 Ford GT followed by Tommy Milner in the No. 4 Corvette.^[12] The GTD class was topped by the No. 44 Magnus Racing Lamborghini Huracán GT3 Evo of Andy Lally with a time of 1:45.406. Bill Auberlen in the No. 96 BMW was second fastest followed by Dirk Werner in the No. 540 Black Swan Racing Porsche.^[13] The session was red flagged two times. 20 minutes into the session, Chris Miller's No. 84 JDC-Miller Motorsports Cadillac stopped at the inner loop.^[14] The final stoppage came when Will Hardeman crashed the No. 19 Moorespeed Audi at the barrier at turn five and caught fire. Hardeman suffered a concussion and the session ended early.^[15] After practice, Moorespeed withdrew the No. 19 Audi due to the extensive damage the car received.^[16]

The second practice session took place at 3:05 PM ET on Friday and ended with Dane Cameron topping the charts for Acura Team Penske, with a lap time of 1:30.014. Jonathan Bomarito was second fastest in the No. 55 Mazda Team Joest entry followed by Hélio Castroneves in the No. 7 Acura.^[19] Matt McMurry set the fastest in LMP2.^[20] The GTLM class was topped by the No. 67 Ford Chip Ganassi Racing Ford GT of Richard Westbrook with a time of 1:42.321. Antonio García was second fastest in the No. 3 Corvette followed by Joey Hand in the No. 66 Ford GT.^[21] The GTD class was topped by the No. 44 Magnus Racing Lamborghini Huracán GT3 Evo of Spencer Pumpelly with a time of 1:45.835. Scott Hargrove was second fastest in the No. 9 Pfaff Motorsports Porsche followed by Jack Hawksworth in the No. 14 Lexus.^[20] The session saw one stoppage when Simon Trummer's No. 84 JDC-Miller Motorsports Cadillac suffered a loss of power and stopped at turn ten.^[20][15]

The third and final practice session took place at 8:00 am ET and ended with Oliver Jarvis topping the charts for Mazda Team Joest, with a lap time of 1:43.279. Will Owen was second fastest in the No. 50 Juncos Racing Cadillac followed by Renger van der Zande in the No. 10 Konica Minolta Cadillac entry.^[24] The GTLM class was topped by the No. 912 Porsche GT Team Porsche 911 RSR of Laurens Vanthoor with a time of 1:54.280. John Edwards was second fastest in the No. 24 BMW followed by Patrick Pilet in the No. 911 Porsche.^[24]The GTD class was topped by the No. 14 AIM Vasser Sullivan Lexus RC F GT3 of Jack Hawksworth with a time of 1:57.445. Parker Chase was second fastest in the No. 8 Starworks Motorsport Audi followed by Aaron Telitz in the No. 12 Lexus.^[25] Neither of the LMP2 entries set a lap time.^[26]

Saturday's late morning qualification session was broken into three sessions that lasted 15 minutes each.^[10] Cars in GTD were sent out first before those grouped in GTLM and DPi/LMP2 had two separate identically timed sessions. All cars were required to be driven by one participant and the starting order was determined by the competitor's fastest lap.^[29] IMSA then arranged the grid so that the DPi, LMP2, and GTLM cars started in front of the GTD field.

The first was for cars in the GTD class. Trent Hindman qualified on pole for the class driving the No. 86 car for Meyer Shank Racing, beating Christina Nielsen in the No. 57 Acura by more than three-tenths of a second. Following in third was Dillon Machavern's No. 96 BMW with the No. 63 Ferrari of Jeff Westphal in fourth.^[30] Ricardo Feller completed the top five in the No. 29 Montaplast by Land-Motorsport Audi followed by The No. 9 Pfaff Motorsports Porsche of Zacharie Robichon in sixth position.^[31] The No. 12 AIM Vasser Sullivan entry did not participate in the session due to the team changing the engine.^[32]

The second session was for cars in the GTLM class. Antonio García qualified on pole for the class driving the No. 3 car for Corvette Racing, beating Richard Westbrook in the No. 67 Ford Chip Ganassi Racing by 0.317 seconds. Joey Hand was third fastest, but lost his fastest lap for violating track limits. As a result, Hand would start from fifth position while Tommy Milner's No. 4 Corvette was promoted to third position followed by John Edwards in the No. 24 BMW in fourth.^[32] Connor De Phillippi in the No. 25 BMW Team RLL started from sixth place.^[30] The Porsche GT Team entries rounded out the GTLM qualifiers.^[30]

The final session of qualifying was for cars in the LMP2 and DPi classes. Oliver Jarvis qualified on pole overall driving the No. 77 car for Mazda Team Joest, beating Dane Cameron in the No. 6 Acura by more than two-tenths of a second.^[32] Ricky Taylor qualified the No. 7 Acura Team Penske entry in third position followed by Harry Tincknell's No. 55 Mazda in fourth.^[33] Renger van der Zande in the No. 10 Konica Minolta Cadillac entry started from fifth place.^[33] Following in sixth was Filipe Albuquerque's No. 5 Mustang Sampling Racing followed by Felipe Nasr in the No. 31 Whelen Engineering Racing Cadillac.^[31] Gabriel Aubry qualified on pole in LMP2 driving the No. 52 car PR1/ Mathiasen Motorsports, besting Kyle Masson in the No. 38 Performance Tech Motorsports car.^[34]

Pole positions in each class are indicated in bold and by ‡.

Pos.	Class	No.	Team	Driver	Time	Gap	Grid
1	DPi	77	Mazda Team Joest	Oliver Jarvis	1:29.639	_	1‡
2	DPi	6	Acura Team Penske	Dane Cameron	1:29.862	+0.223	2
3	DPi	7	Acura Team Penske	Ricky Taylor	1:29.928	+0.289	3
4	DPi	55	Mazda Team Joest	Harry Tincknell	1:29.983	+0.344	4
5	DPi	10	Konica Minolta Cadillac	Renger van der Zande	1:30.758	+1.119	5
6	DPi	5	Mustang Sampling Racing	Filipe Albuquerque	1:31.170	+1.531	6
7	DPi	31	Whelen Engineering Racing	Felipe Nasr	1:31.177	+1.538	7
8	LMP2	52	PR1/ Mathiasen Motorsports	Gabriel Aubry	1:31.735	+2.096	12‡
9	DPi	85	JDC-Miller Motorsports	Misha Goikhberg	1:32.316	+2.677	8
10	DPi	84	JDC-Miller Motorsports	Simon Trummer	1:32.409	+2.770	9
11	LMP2	38	Performance Tech Motorsports	Kyle Masson	1:32.459	+2.820	13
12	DPi	50	Juncos Racing	René Binder	1:33.134	+3.495	10
13	DPi	54	CORE Autosport	Jon Bennett	1:33.466	+3.827	11
14	GTLM	3	Corvette Racing	Antonio García	1:40.799	+11.160	14‡
15	GTLM	67	Ford Chip Ganassi Racing	Richard Westbrook	1:41.116	+11.477	15
16	GTLM	4	Corvette Racing	Tommy Milner	1:41.291	+11.652	16
17	GTLM	24	BMW Team RLL	John Edwards	1:41.301	+11.662	17
18	GTLM	66	Ford Chip Ganassi Racing	Joey Hand	1:41.304	+11.665	18
19	GTLM	25	BMW Team RLL	Connor De Phillippi	1:41.414	+11.775	19
20	GTLM	911	Porsche GT Team	Nick Tandy	1:41.545	+11.906	211
21	GTLM	912	Porsche GT Team	Laurens Vanthoor	1:42.206	+12.567	20
22	GTD	86	Meyer Shank Racing with Curb-Agajanian	Trent Hindman	1:44.978	+15.339	22‡
23	GTD	57	Heinricher Racing w/Meyer Shank Racing	Christina Nielsen	1:45.295	+15.656	23
24	GTD	96	Turner Motorsport	Dillon Machavern	1:45.506	+15.867	24
25	GTD	63	Scuderia Corsa	Jeff Westphal	1:45.595	+15.856	25
26	GTD	29	Montaplast by Land-Motorsport	Ricardo Feller	1:45.597	+15.858	26
27	GTD	9	Pfaff Motorsports	Zacharie Robichon	1:45.842	+16.203	27
28	GTD	33	Mercedes-AMG Team Riley Motorsports	Ben Keating	1:45.961	+16.322	28
29	GTD	14	AIM Vasser Sullivan	Richard Heistand	1:46.066	+16.427	29
30	GTD	540	Black Swan Racing	Marco Seefried	1:46.100	+16.461	30
31	GTD	47	Precision Performance Motorsports	Brandon Gdovic	1:46.388	+16.749	31
32	GTD	48	Paul Miller Racing	Ryan Hardwick	1:46.620	+16.981	32
33	GTD	44	Magnus Racing	John Potter	1:47.041	+17.402	33
34	GTD	8	Starworks Motorsport	Parker Chase	1:48.041	+18.402	34
35	GTD	73	Park Place Motorsports	Nicholas Boulle	1:48.923	+19.284	35
36	GTD	12	AIM Vasser Sullivan	None	No time	_	372
37	GTD	19	Moorespeed	None	No time	_	36
Sources:[35][36]

• ¹The No. 911 Porsche GT Team entry initially qualified eighth for the GTLM class.However, the team changed engines. By IMSA rules, the entry was moved to the rear of the GTLM field on the starting grid.
• ² The No. 12 AIM Vasser Sullivan entry initially qualified fifteenth for the GTD class.However, the team changed engines. By IMSA rules, the entry was moved to the rear of the GTD field on the starting grid.

With a total of 177 points, Cameron and Montoya's third place finish allowed them to take the lead of the DPi Drivers' Championship while Derani and Nasr dropped to second. Jordan Taylor and Renger van der Zande advanced from fourth to third.^[37] The final results of LMP2 kept Cassels and Masson atop the Drivers' Championship, but their advantage was reduced to one point by race winner McMurry. Lux advanced from sixth to fourth.^[37] Pilet and Tandy took the lead of the GTLM Drivers' Championship while Bamber and Vanthoor dropped to second. Müller jumped to fourth and being fifth coming into Watkins Glen.^[37] With a total of 119 points, Farnbacher and Hindman's victory allowed them to extend their advantage to 16 points while Heistand and Hawksworth took over second position in the GTD Drivers' Championship.^[37] Porsche and Lamborghini continued to top their respective Manufacturers' Championships, while Acura took the lead of the DPi Manufactures' Championship.^[37] Performance Tech Motorsports, Porsche GT Team, and Meyer Shank Racing kept their respective advantages in their Teams' Championships, while Acura Team Penske took the lead of the DPi Teams Championship with six rounds left in the season.^[37]

Class winners are denoted in bold and ‡.

Pos	Class	No.	Team	Drivers	Chassis	Laps	Time/Gap To/Reason Retired
					Engine
1	DPi	55	Mazda Team Joest	Jonathan Bomarito Olivier Pla Harry Tincknell	Mazda RT24-P	211	6:00:07.332‡
					Mazda MZ-2.0T 2.0 L Turbo I4
2	DPi	77	Mazda Team Joest	Timo Bernhard Oliver Jarvis Tristan Nunez	Mazda RT24-P	211	+0.353s
					Mazda MZ-2.0T 2.0 L Turbo I4
3	DPi	6	Acura Team Penske	Dane Cameron Juan Pablo Montoya	Acura ARX-05	211	+11.783s
					Acura AR35TT 3.5 L Turbo V6
4	DPi	10	Konica Minolta Cadillac	Jordan Taylor Renger van der Zande	Cadillac DPi-V.R	211	+24.837s
					Cadillac 5.5 L V8
5	DPi	7	Acura Team Penske	Hélio Castroneves Ricky Taylor	Acura ARX-05	211	+38.864s
					Acura AR35TT 3.5 L Turbo V6
6	DPi	5	Mustang Sampling Racing	Filipe Albuquerque João Barbosa Mike Conway	Cadillac DPi-V.R	209	+2 laps
					Cadillac 5.5 L V8
7	DPi	31	Whelen Engineering Racing	Eric Curran Pipo Derani Felipe Nasr	Cadillac DPi-V.R	208	+3 laps
					Cadillac 5.5 L V8
8	DPi	50	Juncos Racing	René Binder Will Owen	Cadillac DPi-V.R	206	+5 laps
					Cadillac 5.5 L V8
9	DPi	84	JDC-Miller Motorsports	Chris Miller Stephen Simpson Simon Trummer	Cadillac DPi-V.R	204	+7 laps
					Cadillac 5.5 L V8
10	LMP2	52	PR1/Mathiasen Motorsports	Gabriel Aubry Eric Lux Matt McMurry	Oreca 07	201	+10 laps‡
					Gibson GK428 4.2 L V8
11	DPi	85	JDC-Miller Motorsports	Misha Goikhberg Juan Piedrahita Tristan Vautier	Cadillac DPi-V.R	199	+12 laps
					Cadillac 5.5 L V8
12	GTLM	911	Porsche GT Team	Patrick Pilet Nick Tandy	Porsche 911 RSR	195	+16 laps‡
					Porsche 4.0 L Flat-6
13	GTLM	3	Corvette Racing	Antonio García Jan Magnussen	Chevrolet Corvette C7.R	195	+16 laps
					Chevrolet LT5.5 5.5 L V8
14	GTLM	67	Ford Chip Ganassi Racing	Ryan Briscoe Richard Westbrook	Ford GT	194	+17 laps
					Ford EcoBoost 3.5 L Turbo V6
15	GTLM	66	Ford Chip Ganassi Racing	Joey Hand Dirk Müller	Ford GT	194	+17 laps
					Ford EcoBoost 3.5 L Turbo V6
16	GTLM	24	BMW Team RLL	John Edwards Jesse Krohn	BMW M8 GTE	194	+17 laps
					BMW S63 4.0 L Twin-turbo V8
17	GTLM	912	Porsche GT Team	Earl Bamber Laurens Vanthoor	Porsche 911 RSR	194	+17 laps
					Porsche 4.0 L Flat-6
18	GTD	86	Meyer Shank Racing with Curb-Agajanian	Mario Farnbacher Trent Hindman Justin Marks	Acura NSX GT3	188	+23 laps‡
					Acura 3.5 L Turbo V6
19	GTD	96	Turner Motorsport	Bill Auberlen Robby Foley Dillon Machavern	BMW M6 GT3	188	+23 laps
					BMW 4.4 L Turbo V8
20	GTD	63	Scuderia Corsa	Cooper MacNeil Toni Vilander Jeff Westphal	Ferrari 488 GT3	188	+23 laps
					Ferrari F154 3.9 L Turbo V8
21	GTD	57	Heinricher Racing w/Meyer Shank Racing	Bia Figueiredo Katherine Legge Christina Nielsen	Acura NSX GT3	188	+23 laps
					Acura 3.5 L Turbo V6
22	GTD	14	AIM Vasser Sullivan	Philipp Frommenwiler Jack Hawksworth Richard Heistand	Lexus RC F GT3	188	+23 laps
					Lexus 5.0 L V8
23	GTD	9	Pfaff Motorsports	Scott Hargrove Zacharie Robichon	Porsche 911 GT3 R	188	+23 laps
					Porsche 4.0 L Flat-6
24	GTD	44	Magnus Racing	Andy Lally John Potter Spencer Pumpelly	Lamborghini Huracán GT3 Evo	188	+23 laps
					Lamborghini 5.2 L V10
25	GTD	29	Montaplast by Land-Motorsport	Ricardo Feller Christopher Mies Daniel Morad	Audi R8 LMS GT3	188	+23 laps
					Audi 5.2 L V10
26	GTD	12	AIM Vasser Sullivan	Townsend Bell Frankie Montecalvo Aaron Telitz	Lexus RC F GT3	188	+23 laps
					Lexus 5.0 L V8
27	GTD	540	Black Swan Racing	Marc Miller Marco Seefried Dirk Werner	Porsche 911 GT3 R	186	+25 laps
					Porsche 4.0 L Flat-6
28	GTD	47	Precision Performance Motorsports	Jacob Eidson Brandon Gdovic Don Yount	Lamborghini Huracán GT3 Evo	185	+26 laps
					Lamborghini 5.2 L V10
29	GTD	8	Starworks Motorsport	Parker Chase Ryan Dalziel Mike Skeen	Audi R8 LMS GT3	185	+26 laps
					Audi 5.2 L V10
30	LMP2	38	Performance Tech Motorsports	Cameron Cassels Andrew Evans Kyle Masson	Oreca 07	181	+30 laps
					Gibson GK428 4.2 L V8
31 DNF	GTLM	25	BMW Team RLL	Tom Blomqvist Connor De Phillippi	BMW M8 GTE	159	Pit Fire
					BMW S63 4.0 L Twin-turbo V8
32 DNF	DPi	54	CORE Autosport	Jon Bennett Colin Braun Romain Dumas	Nissan DPi	111	Gearbox
					Nissan VR38DETT 3.8 L Turbo V6
33 DNF	GTD	73	Park Place Motorsports	Nicholas Boulle Patrick Lindsey Patrick Long	Porsche 911 GT3 R	86	Engine
					Porsche 4.0 L Flat-6
34 DNF	GTD	48	Paul Miller Racing	Ryan Hardwick Bryan Sellers	Lamborghini Huracán GT3 Evo	68	Lost Power
					Lamborghini 5.2 L V10
35 DNF	GTLM	4	Corvette Racing	Oliver Gavin Tommy Milner	Chevrolet Corvette C7.R	0	Crash
					Chevrolet LT5.5 5.5 L V8
36 DNF	GTD	33	Mercedes-AMG Team Riley Motorsports	Jeroen Bleekemolen Felipe Fraga Ben Keating	Mercedes-AMG GT3	0	Crash
					Mercedes-AMG M159 6.2 L V8
--	GTD	19	Moorespeed	Andrew Davis Will Hardeman Alex Riberas	Audi R8 LMS GT3	--	Did not start[a]
					Audi 5.2 L V10
Sources:[38][39]

DPi Drivers' Championship standings Pos. +/– Driver Points 1 1 Dane Cameron Juan Pablo Montoya 177 2 1 Pipo Derani Felipe Nasr 176 3 Hélio Castroneves Ricky Taylor 172 4 1 Jordan Taylor Renger van der Zande 163 5 1 Filipe Albuquerque João Barbosa 162 Source:[37]

LMP2 Drivers' Championship standings Pos. +/– Driver Points 1 Cameron Cassels Kyle Masson 131 2 Matt McMurry 130 3 Gabriel Aubry 95 4 2 Eric Lux 70 5 Andrew Evans 67 Source:[37]

GTLM Drivers' Championship standings Pos. +/– Driver Points 1 2 Patrick Pilet Nick Tandy 152 2 1 Earl Bamber Laurens Vanthoor 151 3 1 Antonio García Jan Magnussen 151 4 1 Dirk Müller 136 5 1 Connor De Phillippi 135 Source:[37]

GTD Drivers' Championship standings Pos. +/– Driver Points 1 Mario Farnbacher Trent Hindman 119 2 1 Richard Heistand Jack Hawksworth 103 3 1 Frankie Montecalvo Townsend Bell 102 4 1 Andy Lally John Potter 100 5 1 Patrick Long 95 Source:[37]

• Note: Only the top five positions are included for all sets of standings.

DPi Teams' Championship standings Pos. +/– Team Points 1 1 #6 Acura Team Penske 177 2 1 #31 Whelen Engineering Racing 176 3 #7 Acura Team Penske 172 4 1 #10 Konica Minolta Cadillac 163 5 1 #5 Mustang Sampling Racing 162 Source:[37]

LMP2 Teams' Championship standings Pos. +/– Team Points 1 #38 Performance Tech Motorsports 131 2 #52 PR1/Mathiasen Motorsports 130 3 #18 DragonSpeed 35 4 #81 DragonSpeed 30 Source:[37]

GTLM Teams' Championship standings Pos. +/– Team Points 1 2 #911 Porsche GT Team 152 2 1 #912 Porsche GT Team 151 3 1 #3 Corvette Racing 151 4 1 #66 Ford Chip Ganassi Racing 136 5 1 #25 BMW Team RLL 135 Source:[37]

GTD Teams' Championship standings Pos. +/– Team Points 1 #86 Meyer-Shank Racing with Curb Agajanian 119 2 1 #14 AIM Vasser Sullivan 103 3 1 #12 AIM Vasser Sullivan 102 4 1 #44 Magnus Racing 100 5 1 #73 Park Place Motorsports 95 Source:[37]

• Note: Only the top five positions are included for all sets of standings.

DPi Manufacturers' Championship standings Pos. +/– Manufacturer Points 1 1 Acura 198 2 1 Cadillac 197 3 Mazda 181 4 Nissan 174 Source:[37]

GTLM Manufacturers' Championship standings Pos. +/– Manufacturer Points 1 Porsche 170 2 1 Chevrolet 152 3 1 BMW 149 4 Ford 148 5 Ferrari 32 Source:[37]

GTD Manufacturers' Championship standings Pos. +/– Manufacturer Points 1 Lamborghini 125 2 2 Acura 120 3 1 Lexus 119 4 1 Ferrari 111 5 2 Audi 110 Source:[37]

• Note: Only the top five positions are included for all sets of standings.