The 1999 Grand Prix of Atlanta was the second round of the 1999 American Le Mans Series season. It took place at Road Atlanta, Georgia, on April 18, 1999.

Class winners in bold.

Pos	Class	No	Team	Drivers	Chassis	Tyre	Laps
					Engine
1	LMP	0	Team Rafanelli SRL	Eric van de Poele Mimmo Schiattarella	Riley & Scott Mk III	Y	120
					Judd GV4 4.0 L V10
2	LMP	27	Doran Enterprises	Didier Theys Mauro Baldi	Ferrari 333 SP	M	120
					Ferrari F310E 4.0 L V12
3	LMP	20	Dyson Racing	Butch Leitzinger Elliott Forbes-Robinson	Riley & Scott Mk III	G	120
					Ford 5.0 L V8
4	LMP	11	Doyle-Risi Racing	Max Angelelli Didier de Radiguès	Ferrari 333 SP	P	119
					Ferrari F310E 4.0 L V12
5	LMP	1	Panoz Motor Sports	David Brabham Éric Bernard	Panoz LMP-1 Roadster-S	M	119
					Ford (Élan-Yates) 6.0 L V8
6	LMP	12	Doyle-Risi Racing	Alex Caffi Wayne Taylor	Ferrari 333 SP	P	118
					Ferrari F310E 4.0 L V12
7	LMP	36	Doran Enterprises Jim Matthews Racing	Tommy Kendall Jim Matthews	Ferrari 333 SP	M	117
					Ferrari F310E 4.0 L V12
8	LMP	8	Transatlantic Racing	Scott Schubot Henry Camferdam	Riley & Scott Mk III	G	116
					Ford 5.0 L V8
9	LMP	18	Dollahite Racing	Bill Dollahite Mike Davies	Ferrari 333 SP	P	115
					Ferrari F310E 4.0 L V12
10	LMP	5	Whittington Bros.	Don Whittington Tim Hubman	Lola B98/10	G	114
					Ford (Roush) 6.0 L V8
11	LMP	15	Hybrid R&D	Chris Bingham Ross Bentley	Riley & Scott Mk III	Y	113
					Ford 5.0 L V8
12	GTS	99	Schumacher Racing	Larry Schumacher John O'Steen	Porsche 911 GT2	?	110
					Porsche 3.6 L Turbo Flat-6
13	GTS	56	Martin Snow Racing	Martin Snow Kelly Collins	Porsche 911 GT2	M	110
					Porsche 3.6 L Turbo Flat-6
14	LMP	63	Downing Atlanta	Jim Downing Howard Katz	Kudzu DLY	G	108
					Mazda R26B 2.6 L 4-Rotor
15	GTS	61	Konrad Motorsport	Franz Konrad Peter Kitchak	Porsche 911 GT2	D	107
					Porsche 3.6 L Turbo Flat-6
16	GT	7	Prototype Technology Group	Brian Cunningham Johannes van Overbeek	BMW M3	Y	107
					BMW 3.2 L I6
17	GT	23	Alex Job Racing	Cort Wagner Dirk Müller	Porsche 911 Carrera RSR	Y	107
					Porsche 3.8 L Flat-6
18	GT	6	Prototype Technology Group	Peter Cunningham Mark Simo	BMW M3	Y	107
					BMW 3.2 L I6
19	GT	10	Prototype Technology Group	Boris Said Hans-Joachim Stuck	BMW M3	Y	107
					BMW 3.2 L I6
20	GT	51	Aspen Knolls Racing	Randy Pobst Shane Lewis	BMW M3	Y	106
					BMW 3.2 L I6
21	GTS	55	Saleen/Allen Speedlab	Terry Borcheller Ron Johnson	Saleen Mustang SR	P	106
					Ford 8.0 L V8
22	LMP	62	Downing Atlanta	Dennis Spencer Rich Grupp	Kudzu DLM	G	105
					Mazda 2.0 L 3-Rotor
23	GTS	04	CJ Motorsport	John Graham John Morton	Porsche 911 GT2	?	105
					Porsche 3.6 L Turbo Flat-6
24	LMP	95	TRV Motorsport	Jeret Schroeder Tom Volk	Riley & Scott Mk III	?	105
					Chevrolet 6.0 L V8
25	GT	88	Vanderhoof Racing	Joe Varde Tim Ralston	Porsche 911 Carrera RSR	?	105
					Porsche 3.8 L Flat-6
26	GT	22	Alex Job Racing	Mike Fitzgerald Darryl Havens	Porsche 911 Carrera RSR	Y	104
					Porsche 3.8 L Flat-6
27 DNF	GT	02	Reiser Callas Rennsport	David Murry Craig Stanton	Porsche 911 Carrera RSR	P	101
					Porsche 3.8 L Flat-6
28	GT	90	Millennium Motorsports	Chris Miller David Friedman	Porsche 911 Carrera RSR	Y	100
					Porsche 3.8 L Flat-6
29	GT	39	Toad Hall Motor Racing	Darren Law Erik Johnson James Oppenheimer	Porsche 911 Carrera RSR	?	99
					Porsche 3.8 L Flat-6
30 DNF	GTS	50	Johnson Autosport	Jack Lewis Tim McGlynn	Porsche 911 Turbo	?	95
					Porsche 3.6 L Turbo Flat-6
31 DNF	LMP	06	Multimatic Motorsports	Scott Maxwell Harri Toivonen	Lola B98/10	P	92
					Ford 5.1 L V8
32	GT	76	Team ARE	Peter Argetsinger Richard Polidori	Porsche 911 Carrera RSR	Y	91
					Porsche 3.8 L Flat-6
33	GT	73	Auto Sport South	Kevin Wheeler Brady Refenning	Porsche 911 Carrera RSR	?	89
					Porsche 3.8 L Flat-6
34	GT	46	Team TransEnergy	Sam Shalala Bill Rollwitz	Porsche 911 Carrera RSR	?	85
					Porsche 3.8 L Flat-6
35	GT	64	Team Pumpelly Racing	Spencer Pumpelly Allan Ziegelman Paulo Lima	Porsche 911 Carrera RSR	?	81
					Porsche 3.8 L Flat-6
36	GTS	83	Chiefie Motorsports	Andy Pilgrim Zak Brown	Porsche 911 GT2	?	72
					Porsche 3.6 L Turbo Flat-6
37 DNF	LMP	29	Intersport Racing	Sam Brown John Mirro	Riley & Scott Mk III	G	64
					Ford (Roush) 6.0 L V8
38 DNF	LMP	28	Intersport Racing	Jon Field Ryan Jones	Lola B98/10	G	61
					Ford (Roush) 6.0 L V8
39 DNF	GT	03	Reiser Callas Rennsport	Grady Willingham Michel Ligonnet	Porsche 911 Carrera RSR	P	43
					Porsche 3.8 L Flat-6
40 DNF	LMP	38	Champion Racing	Thierry Boutsen Bob Wollek	Porsche 911 GT1 Evo	M	35
					Porsche 3.2 L Turbo Flat-6
41 DNF	LMP	16	Dyson Racing	Andy Wallace James Weaver	Riley & Scott Mk III	G	33
					Ford 5.0 L V8
42 DNF	LMP	74	Robinson Racing	George Robinson Jack Baldwin	Riley & Scott Mk III	?	14
					Chevrolet 6.0 L V8
43 DNF	LMP	32	Genesis Racing	Rick Fairbanks Jeff Altenburg	Hawk MD3R	?	9
					Chevrolet 6.0 L V8
44 DNF	LMP	2	Panoz Motor Sports	Johnny O'Connell Jan Magnussen	Panoz GTR-1	M	0
					Ford (Roush) 6.0 L V8
DNS	GT	07	G & W Motorsports	Steve Marshall Danny Marshall Darren Law	Porsche 911 GT2 Evo	P	-
					Porsche 3.8 L Turbo Flat-6

• Pole Position - #16 Dyson Racing (Andy Wallace) - 1:13.817
• Fastest Lap - #0 Team Rafanelli (Eric van de Poele) - 1:14.150
• Distance - 490.528 km (304.800 mi)
• Average Speed - 177.145 km/h (110.073 mph)

• "Official Results" (PDF). International Motor Sports Association. 1999. Archived from the original (PDF) on 2005-10-16. Retrieved 2007-11-02.
• "American Le Mans Series 1999". World Sports Racing Prototypes. Archived from the original on 2008-09-19.