The 2005 Grand Prix of Atlanta was the second race for the 2005 American Le Mans Series season held at Road Atlanta. It took place on April 17, 2005.

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	LMP1	1	ADT Champion Racing	Marco Werner JJ Lehto	Audi R8	M	112
					Audi 3.6L Turbo V8
2	LMP1	20	Dyson Racing	Chris Dyson Andy Wallace	MG-Lola EX257	M	112
					MG (AER) XP20 2.0L Turbo I4
3	LMP1	2	ADT Champion Racing	Frank Biela Emanuele Pirro	Audi R8	M	111
					Audi 3.6L Turbo V8
4	LMP2	37	Telesis Intersport Racing	Jon Field Clint Field	Lola B05/40	G	108
					AER P07 2.0L Turbo I4
5	GT1	3	Corvette Racing	Ron Fellows Johnny O'Connell	Chevrolet Corvette C6.R	M	108
					Chevrolet 7.0L V8
6	GT1	4	Corvette Racing	Oliver Gavin Olivier Beretta	Chevrolet Corvette C6.R	M	107
					Chevrolet 7.0L V8
7	GT1	35	Maserati Corse Risi Competizione	Andrea Bertolini Fabrizio de Simone	Maserati MC12	P	107
					Maserati 6.0L V12
8	GT1	63	ACEMCO Motorsports	Terry Borcheller Johnny Mowlem	Saleen S7-R	M	107
					Ford 7.0L V8
9	GT1	5	Pacific Coast Motorsports	Alex Figge Ryan Dalziel	Chevrolet Corvette C5-R	Y	106
					Chevrolet 7.0L V8
10	LMP1	16	Dyson Racing	Butch Leitzinger James Weaver	MG-Lola EX257	M	105
					MG (AER) XP20 2.0L Turbo I4
11	GT2	50	Panoz Motor Sports	Bill Auberlen Robin Liddell	Panoz Esperante GT-LM	P	105
					Ford (Elan) 5.0L V8
12	GT2	23	Alex Job Racing	Timo Bernhard Romain Dumas	Porsche 911 GT3-RSR	M	105
					Porsche 3.6L Flat-6
13	GT2	31	Petersen Motorsports White Lightning Racing	Jörg Bergmeister Patrick Long	Porsche 911 GT3-RSR	M	104
					Porsche 3.6L Flat-6
14	GT1	71	Carsport America	Michele Rugolo Tom Weickardt	Dodge Viper GTS-R	P	103
					Dodge 8.0L V10
15	GT2	45	Flying Lizard Motorsports	Jon Fogarty Johannes van Overbeek	Porsche 911 GT3-RSR	M	103
					Porsche 3.6L Flat-6
16	GT2	24	Alex Job Racing	Ian Baas Randy Pobst	Porsche 911 GT3-RSR	M	102
					Porsche 3.6L Flat-6
17	LMP2	8	B-K Motorsports	Guy Cosmo James Bach	Courage C65	G	102
					Mazda R20B 2.0L 3-rotor
18	GT2	79	J3 Racing	Justin Jackson Niclas Jönsson	Porsche 911 GT3-RSR	P	102
					Porsche 3.6L Flat-6
19	GT2	43	BAM!	Sascha Maassen Tony Burgess	Porsche 911 GT3-RSR	Y	101
					Porsche 3.6L Flat-6
20	GT2	44	Flying Lizard Motorsports	Lonnie Pechnik Seth Neiman	Porsche 911 GT3-RSR	M	101
					Porsche 3.6L Flat-6
21	GT2	51	Panoz Motor Sports	Bryan Sellers Scott Maxwell	Panoz Esperante GT-LM	P	92
					Ford (Elan) 5.0L V8
22	GT2	78	J3 Racing	Rick Skelton Michael Cawley	Porsche 911 GT3-RS	P	90
					Porsche 3.6L Flat-6
23	LMP2	19	Van der Steur Racing	Gunnar van der Steur Eric van der Steur Ben Devlin	Lola B2K/40	D	85
					AER (Nissan) 3.0L V6
24 DNF	LMP2	10	Miracle Motorsports	Jeff Bucknum Chris McMurry John Macaluso	Courage C65	K	50
					AER P07 2.0L Turbo I4

• Pole Position - #16 Dyson Racing - 1:11.241
• Fastest Lap - #1 ADT Champion Racing - 1:12.784
• Distance - 284.48 miles (457.83 km)
• Average Speed - 103.162 mph (166.023 km/h)

• "Official Results" (PDF). Archived from the original (PDF) on 2006-11-10. Retrieved 2006-11-03. (49.8 KiB)