2018 IMSA SportsCar Championship

The 2018 schedule was released on August 4, 2017 and featured twelve rounds.[1]

• The Circuit of the Americas was removed from the calendar, and replaced by a round at Mid-Ohio Sports Car Course.[1]
• The GTD was removed from Long Beach due to space limitations.[1]
• A non-championship round was held at Sebring in November 2018 with IMSA's 2019 rules for the GTD class, along with LMP3, GS, and TCR classes in the secondary series. This saw Michelin's debut as the 2019 series specification tire supplier.[2]

The Prototype class is made up of LMP2 cars both in LMP2 trim, with the ACO specification Gibson V8 engine, and in Daytona Prototype international (DPi) trim, where manufacturers are allowed to use their own engines and bodykits, designed to reflect the automaker's design language. Acura (Oreca), Mazda (Riley Technologies), Cadillac (Dallara), and Nissan (Onroak Automotive) run chassis from the respective constructors featuring manufacturer-specific bodywork and engines.

Team	Chassis	Engine	No.	Drivers	Rounds
Tequila Patrón ESM[3]	Nissan Onroak DPi	Nissan VR38DETT 3.8 L Turbo V6	2	Ryan Dalziel[4]	1–6, 9, 11–12
				Scott Sharp[4]	1–6, 9, 11–12
				Olivier Pla[5]	1–2, 6
				Norman Nato[6]	12
			22	Pipo Derani[7]	All
				Johannes van Overbeek[8]	1–6, 9, 11–12
				Nicolas Lapierre[5]	1–2, 6
				Ryan Dalziel[9]	7
				Timo Bernhard[10]	12
Mustang Sampling Racing[11][N 1] Whelen Engineering Racing[11][N 1]	Cadillac DPi-V.R	Cadillac 5.5 L V8[12]	5	Filipe Albuquerque[11]	All
				João Barbosa[11]	1–5, 9, 11
				Christian Fittipaldi[11]	1–2, 6–7, 12
				Gabby Chaves[13]	6
				Tristan Vautier[14]	12
			31	Eric Curran[11]	All
				Felipe Nasr[11]	All
				Mike Conway[11]	1–2, 6
				Stuart Middleton[15]	1
				Gabby Chaves	12
Acura Team Penske[16]	Acura ARX-05	Acura AR35TT 3.5 L Turbo V6	6	Dane Cameron[17]	All
				Juan Pablo Montoya[17]	All
				Simon Pagenaud[18]	1–2, 12
			7	Hélio Castroneves[19]	All
				Ricky Taylor[18]	All
				Graham Rahal[18]	1–2, 12
Wayne Taylor Racing[20]	Cadillac DPi-V.R	Cadillac 5.5 L V8	10	Jordan Taylor[20]	All
				Renger van der Zande[21]	All
				Ryan Hunter-Reay[22]	1–2, 12
BAR1 Motorsports[23]	Riley Mk. 30	Gibson GK428 4.2 L V8	20	Marc Drumwright[23]	1
				Brendan Gaughan[23]	1
				Eric Lux[23]	1
				Alex Popow[23]	1
United Autosports[24]	Ligier JS P217	Gibson GK428 4.2 L V8	23	Fernando Alonso[25]	1
				Phil Hanson[26]	1
				Lando Norris[27]	1
			32	Paul di Resta[28]	1–2, 6
				Bruno Senna[29]	1, 6
				Will Owen[24]	1
				Hugo de Sadeleer[30]	1
				Phil Hanson[31]	2, 6
				Alex Brundle[31]	2
Jackie Chan DCR JOTA[32]	Oreca 07	Gibson GK428 4.2 L V8	37	Robin Frijns[32]	1
				Daniel Juncadella[32]	1
				Felix Rosenqvist[32]	1
				Lance Stroll[32]	1
			78	Alex Brundle[33]	1
				António Félix da Costa[33]	1
				Ferdinand Habsburg-Lothringen[33]	1
				Ho-Pin Tung[33]	1
Performance Tech Motorsports[34]	Oreca 07	Gibson GK428 4.2 L V8	38	James French[35]	1–4, 6–7, 12
				Kyle Masson[35]	1–4, 6–7, 12
				Patricio O'Ward[35]	1–2
				Joel Miller[36]	1, 6
				Nicholas Boulle	12
AFS/PR1 Mathiasen Motorsports[37]	Ligier JS P217 Oreca 07	Gibson GK428 4.2 L V8	52	Sebastián Saavedra[37]	All
				Gustavo Yacamán[37]	1–7, 9, 11
				Roberto González	1–2
				Nicholas Boulle	1
				Will Owen	6, 12
				José Gutiérrez	12
CORE Autosport[38]	Oreca 07	Gibson GK428 4.2 L V8	54	Jon Bennett[38]	All
				Colin Braun[38]	All
				Romain Dumas[39]	1–2, 6, 12
				Loïc Duval[39]	1
Mazda Team Joest[40]	Mazda RT24-P	Mazda MZ-2.0T 2.0 L Turbo I4	55	Jonathan Bomarito[22]	All
				Harry Tincknell[22]	1–3, 5–7, 9, 11
				Spencer Pigot[22]	1–2, 4, 6, 12
				Marino Franchitti	12
			77	Oliver Jarvis[22]	All
				Tristan Nunez[22]	All
				René Rast[22]	1–2, 6
				Lucas di Grassi	12
JDC-Miller MotorSports[41]	Oreca 07	Gibson GK428 4.2 L V8	85	Robert Alon[42]	All
				Simon Trummer[41]	All
				Austin Cindric[43]	1
				Devlin DeFrancesco[43]	1, 12
				Nelson Panciatici[31]	2, 6
			99	Mikhail Goikhberg[41]	All
				Stephen Simpson[41]	All
				Chris Miller[41]	1–2, 6, 12
				Gustavo Menezes[44]	1
Spirit of Daytona Racing[45]	Cadillac DPi-V.R	Cadillac 5.5 L V8	90	Matt McMurry[45]	1–2, 5–6
				Tristan Vautier[45]	1–2, 5–6
				Eddie Cheever III[46]	1–2

Championship points are awarded in each class at the finish of each event. Points are awarded based on finishing positions as shown in the chart below.

Drivers points

Points are awarded in each class at the finish of each event.

Team points

Team points are calculated in exactly the same way as driver points, using the point distribution chart. Each car entered is considered its own "team" regardless if it is a single entry or part of a two-car team.

Manufacturer points

There are also a number of manufacturer championships which utilize the same season-long point distribution chart. The manufacturer championships recognized by IMSA are as follows:

Prototype (P): Engine manufacturer

GT Le Mans (GTLM): Car manufacturer

GT Daytona (GTD): Car manufacturer

Each manufacturer receives finishing points for its highest finishing car in each class. The positions of subsequent finishing cars from the same manufacturer are not taken into consideration, and all other manufacturers move up in the order.

Example: Manufacturer A finishes 1st and 2nd at an event, and Manufacturer B finishes 3rd. Manufacturer A receives 35 first-place points while Manufacturer B would earn 32 second-place points.

North American Endurance Cup

The points system for the North American Endurance Cup is different from the normal points system. Points are awarded on a 5-4-3-2 basis for drivers, teams and manufacturers. The first finishing position at each interval earns five points, four points for second position, three points for third, with two points awarded for fourth and each subsequent finishing position.

At Daytona (24 hour race), points are awarded at six hours, 12 hours, 18 hours and at the finish. At the Sebring (12 hour race), points are awarded at four hours, eight hours and at the finish. At Watkins Glen (6 hour race), points are awarded at three hours and at the finish. At Road Atlanta (10 hour race), points are awarded at four hours, eight hours and at the finish.

Like the season-long team championship, North American Endurance Cup team points are awarded for each car and drivers get points in any car that they drive, in which they are entered for points. The manufacturer points go to the highest placed car from that manufacturer (the others from that manufacturer not being counted), just like the season-long manufacturer championship.

For example: in any particular segment manufacturer A finishes 1st and 2nd and manufacturer B finishes 3rd. Manufacturer A only receives first-place points for that segment. Manufacturer B receives the second-place points.

[81]

Pos.	Driver	DAY	SEB	MOH	BEL	WGL	MOS	LIM	ELK	VIR	LGA	ATL	Points	NAEC
1	Bryan Sellers Madison Snow	3	1	3	3	3	4	1	2	6	4	3	333	26
2	Katherine Legge	2	8	2	1	2	5	4	7	3	1	2	329	29
3	Jeroen Bleekemolen Ben Keating	4	3	9	4	5	1	6	5	5	3	8	299	31
4	Cooper MacNeil	10	2	8	5	7	8	3	3	4	8	1	295	20
5	Dominik Baumann Kyle Marcelli	15	14	1	6	13	2	7	6	1	10	11	268	20
6	Álvaro Parente	2	8	2		2	5	4	7		1	2	264	29
7	Patrick Long Christina Nielsen	19	6	7	11	9	9	8	1	2	11	4	263	18
8	Andy Lally John Potter	6	13	10	10	17	3	2	9	7	5	9	255	18
9	Lawson Aschenbach Justin Marks	11	7	5	2	14	6	9	8	9	13	12	249	21
10	Jack Hawksworth	9	5	4	12	4	7	5	12	8	7	10	239	19
11	David Heinemeier Hansson	9	5	4	12	4	7		12	8	7	10	213	19
12	Gunnar Jeannette	10	2			7		3		4	8	1	193	20
13	Mario Farnbacher	11	7		1	4		5		3		12	182	22
14	Robby Foley	12			7		11	10	4	10	12		153	8
15	Bill Auberlen			6	7		11	10	4	10	12		131	8
16	Jörg Bergmeister Patrick Lindsey	18	9			6			11		2		112	18
17	Townsend Bell Frankie Montecalvo	5	17			10					9	5	109	18
18	Kenny Habul	8	10	12	8	8							109	19
19	Luca Stolz	4	3			5						8	107
20	Markus Palttala		11			1						15	100	6
21	Dillon Machavern		11	6		1							80	6
22	Sheldon van der Linde Christopher Mies	7	4			12						6	96	24
23	Jeff Segal	10			5	7	8						94
24	Don Yount	14	11			1							72	21
25	Trent Hindman	2	8									2	87	21
26	Robert Renauer	19	6			9							87	18
27	Wolf Henzler			11	9		10					13	81	–
28	Andrew Davis	6	13			17						9	79	18
29	Daniel Serra	21	12			18						1	77	18
30	Alessandro Balzan	10	2	8									76	16
31	J. C. Perez	12	181			16						7	71	18
32	Thomas Jäger Mikaël Grenier	8	10			8							67	18
33	Corey Lewis		1									3	65	9
34	Michael Schein			11	9		10						63	–
35	Sean Rayhall	16	5									10	62	14
36	Bill Sweedler	5	17			10							61	18
37	Francesco Piovanetti Oswaldo Negri Jr.					18			10		6		59	4
38	Tim Pappas	15	14									13	53	14
39	Philipp Frommenwiler	15	14									11	53	16
40	Loris Spinelli	12	181			16							47	18
41	Ryan Eversley Chad Gilsinger	16	15			15							47	18
42	Maro Engel	8		12									43	8
43	Daniel Morad					12						6	40	24
44	Mathieu Jaminet	19	6										37	14
45	Mirko Bortolotti Rik Breukers Rolf Ineichen Franck Perera	1											35	13
46	Till Bechtolsheimer Marc Miller		16			11							35	6
47	A. J. Allmendinger	2											32	14
48	Kenton Koch	12	181										32	14
49	Tom Dyer		15			15							32	6
50	Andrea Caldarelli Bryce Miller	3											30	12
48	Paul Dalla Lana Pedro Lamy Mathias Lauda	21	12										29	14
49	Adam Christodoulou	4											28	13
50	Alessio Picariello		4										28	9
51	Sam Bird	5											26	8
52	Markus Winkelhock	6											25	8
53	Kelvin van der Linde Jeffrey Schmidt	7											24	11
54	Bernd Schneider				8								23	–
55	Dominik Farnbacher Scott Pruett	9											22	8
56	Côme Ledogar	11											20	9
57	Christian Engelhart Christoph Lenz Louis Machiels Ezequiel Pérez Companc Max van Splunteren	13											18	8
58	Jens Klingmann Mark Kvamme Cameron Lawrence Martin Tomczyk	14											17	8
59	Bruno Junqueira	15											16	8
60	John Falb	16											15	8
61	Kuno Wittmer		16										15	6
62	Santiago Creel Martin Fuentes Matt Griffin Miguel Molina Ricardo Pérez de Lara	17											14	8
63	Norbert Siedler	18											13	8
64	Matteo Cairoli Sven Müller Harald Proczyk Steve Smith Randy Walls	20											11	8
Pos.	Driver	DAY	SEB	MOH	BEL	WGL	MOS	LIM	ELK	VIR	LGA	ATL	Points	NAEC

Notes

• ¹ – Relegated to last in class for exceeding maximum driver time.