The 2003 12 Hours of Sebring was the 51st running of this event, and took place on March 15, 2003. This was also the opening race of the 2003 American Le Mans Series season.

Official results

Class winners in bold. Cars failing to complete 70% of winner's distance marked as Not Classified (NC).

Pos	Class	No	Team	Drivers	Chassis	Tyre	Laps
					Engine
1	LMP900	1	Infineon Team Joest	Marco Werner Frank Biela Philipp Peter	Audi R8	M	367
					Audi 3.6 L Turbo V8
2	LMP900	38	ADT Champion Racing	Emanuele Pirro JJ Lehto Stefan Johansson	Audi R8	M	367
					Audi 3.6 L Turbo V8
3	LMGTP	8	Team Bentley	Johnny Herbert David Brabham Mark Blundell	Bentley Speed 8	M	363
					Bentley 4.0 L Turbo V8
4	LMGTP	7	Team Bentley	Tom Kristensen Guy Smith Rinaldo Capello	Bentley Speed 8	M	362
					Bentley 4.0 L Turbo V8
5	LMP900	10	JML Team Panoz	Olivier Beretta Max Papis Gunnar Jeannette	Panoz LMP01 Evo	M	352
					Élan 6L8 6.0 L V8
6	LMP900	9	Audi Sport UK	Mika Salo Jonny Kane Perry McCarthy	Audi R8	M	351
					Audi 3.6 L Turbo V8
7	LMP900	27	Doran Lista Racing	Didier Theys Eric van de Poele Fredy Lienhard	Dallara SP1	M	336
					Judd GV4 4.0 L V10
8	GTS	3	Corvette Racing	Ron Fellows Johnny O'Connell Franck Fréon	Chevrolet Corvette C5-R	G	332
					Chevrolet LS7r 7.0 L V8
9	LMP900	11	JML Team Panoz	Scott Maxwell John Graham Benjamin Leuenberger	Panoz LMP01 Evo	M	324
					Élan 6L8 6.0 L V8
10	GT	23	Alex Job Racing	Lucas Luhr Sascha Maassen	Porsche 911 GT3-RS	M	320
					Porsche 3.6 L Flat-6
11	GT	31	White Lightning Racing	Johnny Mowlem Niclas Jönsson Craig Stanton	Porsche 911 GT3-RSR	M	319
					Porsche 3.6 L Flat-6
12	LMP900	12	American Spirit Racing	Michael Lewis Tomy Drissi Guy Cosmo	Riley & Scott Mk III C	D	318
					Lincoln (Élan) 5.0 L V8
13	GTS	80	Veloqx Prodrive Racing	Darren Turner Anthony Davidson Kelvin Burt	Ferrari 550-GTS Maranello	M	316
					Ferrari 5.9 L V12
14	GT	53	Seikel Motorsport	Alex Caffi Gabrio Rosa Andrea Chiesa	Porsche 911 GT3-RS	Y	312
					Porsche 3.6 L Flat-6
15	GT	28	JMB Racing USA	Stéphane Grégoire Fabio Babini Christian Pescatori	Ferrari 360 Modena GTC	P	311
					Ferrari 3.6 L V8
16	LMP900	77	Taurus Sports Racing	Phil Andrews Justin Keen Larry Oberto	Lola B2K/10	D	307
					Judd GV4 4.0 L V10
17	GT	24	Alex Job Racing	Jörg Bergmeister Timo Bernhard	Porsche 911 GT3-RS	M	307
					Porsche 3.6 L Flat-6
18	LMP675	20	Dyson Racing	Chris Dyson Chad Block Didier de Radiguès	MG-Lola EX257	G	306
					MG (AER) XP20 2.0 L Turbo I4
19	GT	68	The Racer's Group	Cort Wagner Marc Bunting Chris Gleason	Porsche 911 GT3-RS	M	299
					Porsche 3.6 L Flat-6
20	GT	41	DeWALT Racesport Salisbury	Rob Barff Richard Hay Richard Stanton	TVR Tuscan T400R	D	297
					TVR Speed Six 4.0 L I6
21	GT	66	The Racer's Group	Kevin Buckler Jim Pace Eliseo Salazar	Porsche 911 GT3-RS	M	293
					Porsche 3.6 L Flat-6
22	GT	42	Orbit Racing	Joe Policastro Joe Policastro, Jr. Mike Fitzgerald	Porsche 911 GT3-RS	M	292
					Porsche 3.6 L Flat-6
23	GT	33	ZIP Racing	Andy Lally Spencer Pumpelly Steven Ivankovich	Porsche 911 GT3-RS	D	290
					Porsche 3.6 L Flat-6
24	GT	67	The Racer's Group	Michael Schrom Pierre Ehret Vic Rice	Porsche 911 GT3-RS	M	288
					Porsche 3.6 L Flat-6
25 DNF	LMP900	36	Jim Matthews Racing	Jim Matthews Marc Goossens Jan Magnussen	Riley & Scott Mk III C	M	284
					Ford (Yates) 6.0 L V8
26 DNF	GTS	4	Corvette Racing	Kelly Collins Andy Pilgrim Oliver Gavin	Chevrolet Corvette C5-R	G	283
					Chevrolet LS7r 7.0 L V8
27	GT	29	JMB Racing USA	Stephen Earle Andrea Garbagnati Ludovico Manfredi	Ferrari 360 Modena GTC	P	283
					Ferrari 3.6 L V8
28 DNF	GTS	71	Carsport America	Tom Weickardt Jeff Altenberg Jean-Philippe Belloc	Dodge Viper GTS-R	P	280
					Dodge 8.0 L V10
29	GT	52	Seikel Motorsport	Philip Collin John Lloyd David Shep	Porsche 911 GT3-RS	Y	278
					Porsche 3.6 L Flat-6
30	LMP675	37	Intersport Racing	Jon Field Duncan Dayton Mike Durand	MG-Lola EX257	G	266
					MG (AER) XP20 2.0 L Turbo I4
31 DNF	GT	78	T2M Motorsport	Derek Clark Chip Vance Georges Forgeois	Porsche 911 GT3-R	D	263
					Porsche 3.6 L Flat-6
32 NC	GTS	2	Konrad Motorsport	Franz Konrad Robert Nearn Toni Seiler	Saleen S7-R	D	249
					Ford 7.0 L V8
33 DNF	GTS	88	Veloqx Prodrive Racing	Tomáš Enge Peter Kox Jamie Davies	Ferrari 550-GTS Maranello	M	245
					Ferrari 5.9 L V12
34 DNF	GT	34	Risi Competizione	Marino Franchitti Kevin McGarrity	Ferrari 360 Modena GTC	M	243
					Ferrari 3.6 L V8
35 NC	GT	61	P.K. Sport	Ian Donaldson Bart Hayden Gregor Fisken	Porsche 911 GT3-R	P	240
					Porsche 3.6 L Flat-6
36 DNF	GT	63	ACEMCO Motorsports	B.J. Zacharias Andrew Davis Shane Lewis	Ferrari 360 Modena GTC	Y	233
					Ferrari 3.6 L V8
37 DNF	GT	40	Alegra Motorsports	Boris Said Catersby Jones Carlos DeQuesada	BMW M3	Y	141
					BMW 3.2 L I6
38 DNF	GT	03	Hyper Sport	Joe Foster Brad Nyberg Rick Skelton	Porsche 911 GT3-RS	P	125
					Porsche 3.6L Flat-6
39 DNF	GT	48	Spyker Squadron	Norman Simon Hans Hugenholtz Patrick van Schoote	Spyker C8 Double-12R	D	103
					BMW (Mader) 4.0 L V8
40 DNF	GTS	83	Graham Nash Motorsport	Thomas Erdos Pedro Chaves Gavin Pickering	Saleen S7-R	D	97
					Ford 7.0 L V8
41 DNF	GT	60	P.K. Sport	Robin Liddell Piers Masarati David Warnock	Porsche 911 GT3-R	P	74
					Porsche 3.6 L Flat-6
42 DNF	LMP675	15	RN Motorsports	Hayanari Shimoda John Nielsen	DBA4 03S	D	73
					Zytek ZG348 3.4 L V8
43 DNF	LMP900	87	Sezio Florida Racing Team	Allen Ziegelman Patrice Roussel Ian James	Norma M2000	D	71
					Ford (Kinetic) 6.0 L V8
44 DNF	GT	07	RWS-Yukos Motorsport	Walter Lechner, Jr. Stéphane Daoudi Nikolai Fomenko	Porsche 911 GT3-R	P	70
					Porsche 3.6 L Flat-6
45 DNF	GTS	0	Team Olive Garden	Emanuele Naspetti Domenico Schiattarella Johnny Cecotto	Ferrari 550 Maranello	P	59
					Ferrari 6.0 L V12
46 DNF	GT	79	J-3 Racing	David Murry Brian Cunningham Justin Jackson	Porsche 911 GT3-RS	M	57
					Porsche 3.6 L Flat-6
47 DNF	LMP675	18	Marshall Cooke Racing	Jason Workman Melanie Paterson Ben Devlin	Lola B2K/40	P	50
					Ford (Millington) 2.0 L Turbo I4
48 DNF	GT	35	Risi Competizione	Terry Borcheller Anthony Lazzaro Ralf Kelleners	Ferrari 360 Modena GTC	M	39
					Ferrari 3.6 L V8
49 DNF	LMP675	16	Dyson Racing	Butch Leitzinger Andy Wallace James Weaver	MG-Lola EX257	G	39
					MG (AER) XP20 2.0 L Turbo I4
50 DNF	LMP675	56	Team Bucknum Racing	Jeff Bucknum Bryan Willman Chris McMurry	Pilbeam MP91	D	37
					Willman (JPX) 3.4 L V6
51 DNF	GT	43	Orbit Racing	Leo Hindery Peter Baron Marc Lieb	Porsche 911 GT3-RS	M	26
					Porsche 3.6 L Flat-6
52 DNF	LMP900	01	Team Nasamax	Bryan Herta Robbie Stirling Romain Dumas	Reynard 01Q	G	14
					Cosworth XDE 2.7 L Turbo V8 (Bio-ethanol)
53 DNF	LMP900	6	Lister Storm Racing	Jamie Campbell-Walter Ian MacKellar	Lister Storm LMP	D	10
					Chevrolet LS1 6.0 L V8
54 DNF	GTS	17	Carsport America	Mike Hezemans Anthony Kumpen	Pagani Zonda GR	P	6
					Mercedes-AMG 6.3 L V12
DSQ†	LMP900	30	Intersport Racing	Clint Field Rick Sutherland John Macaluso	Lola B2K/10	G	196
					Judd GV4 4.0 L V10

† - #30 was disqualified for receiving outside assistance while still on the race course.

Statistics

• Pole Position - #1 Infineon Team Joest - 1:48.826
  • Note: #8 Team Bentley was originally on pole (1:48.108), but failed post-qualifying inspection.
• Fastest Lap - #7 Team Bentley - 1:49.521
• Distance - 1,357.9 miles (2,185.3 km)
• Average Speed - 113.097 mph (182.012 km/h)