{{Use mdy dates|date=February 2025}}
[[Image:Road America.svg|thumb|right|240px|Track map of [[Road America]].]] The '''2005 Generac 500''' was the seventh race for the [[2005 American Le Mans Series season]] held at [[Road America]]. It took place on August 21, 2005.
==Official results==
Class winners in '''bold'''. Cars failing to complete 70% of winner's distance marked as Not Classified (NC).
{| class="wikitable" style="font-size: 95%;" ! rowspan=2 | Pos ! rowspan=2 | Class ! rowspan=2 | No ! rowspan=2 | Team ! rowspan=2 | Drivers ! Chassis ! rowspan=2 | Tyre ! rowspan=2 | Laps |- ! Engine |- style="font-weight:bold" ! rowspan=2 | 1 | rowspan=2 | LMP1 | rowspan=2 | 2 | rowspan=2 | {{flagicon|United States}} [[ADT Security Services|ADT]] [[Champion Racing]] | rowspan=2 | {{flagicon|Germany}} [[Frank Biela]]<br>{{flagicon|Italy}} [[Emanuele Pirro]] | [[Audi R8 Race Car|Audi R8]] | rowspan=2 | {{Michelin}} | rowspan=2 | 72 |- style="font-weight:bold" | [[Audi]] 3.6L Turbo V8 |- ! rowspan=2 | 2 | rowspan=2 | LMP1 | rowspan=2 | 20 | rowspan=2 | {{flagicon|United States}} [[Dyson Racing]] | rowspan=2 | {{flagicon|United States}} [[Chris Dyson]]<br>{{flagicon|United Kingdom}} [[Andy Wallace (racing driver)|Andy Wallace]] | [[MG (car)|MG]]-[[Lola Racing Cars|Lola]] EX257 | rowspan=2 | {{Michelin}} | rowspan=2 | 72 |- | [[MG (car)|MG]] (AER) XP20 2.0L Turbo I4 |- ! rowspan=2 | 3 | rowspan=2 | LMP1 | rowspan=2 | 1 | rowspan=2 | {{flagicon|United States}} [[ADT Security Services|ADT]] [[Champion Racing]] | rowspan=2 | {{flagicon|Germany}} [[Marco Werner]]<br>{{flagicon|Finland}} [[JJ Lehto]] | [[Audi R8 Race Car|Audi R8]] | rowspan=2 | {{Michelin}} | rowspan=2 | 72 |- | [[Audi]] 3.6L Turbo V8 |- style="font-weight:bold" ! rowspan=2 | 4 | rowspan=2 | GT1 | rowspan=2 | 4 | rowspan=2 | {{flagicon|United States}} [[Corvette Racing]] | rowspan=2 | {{flagicon|United Kingdom}} [[Oliver Gavin]]<br>{{flagicon|Monaco}} [[Olivier Beretta]] | [[Chevrolet Corvette C6.R]] | rowspan=2 | {{Michelin}} | rowspan=2 | 71 |- style="font-weight:bold" | [[Chevrolet]] 7.0L V8 |- ! rowspan=2 | 5 | rowspan=2 | GT1 | rowspan=2 | 3 | rowspan=2 | {{flagicon|United States}} [[Corvette Racing]] | rowspan=2 | {{flagicon|Canada}} [[Ron Fellows]]<br>{{flagicon|United States}} [[Johnny O'Connell]] | [[Chevrolet Corvette C6.R]] | rowspan=2 | {{Michelin}} | rowspan=2 | 71 |- | [[Chevrolet]] 7.0L V8 |- style="font-weight:bold" ! rowspan=2 | 6 | rowspan=2 | LMP2 | rowspan=2 | 10 | rowspan=2 | {{flagicon|United States}} Miracle Motorsports | rowspan=2 | {{flagicon|United States}} [[Jeff Bucknum]]<br>{{flagicon|United States}} [[Chris McMurry]] | [[Courage Competition|Courage]] C65 | rowspan=2 | {{Kumho}} | rowspan=2 | 69 |- style="font-weight:bold" | AER P07 2.0L Turbo I4 |- ! rowspan=2 | 7 | rowspan=2 | LMP1 | rowspan=2 | 12 | rowspan=2 | {{flagicon|United States}} Autocon Motorsports | rowspan=2 | {{flagicon|United States}} Bryan Willman<br>{{flagicon|United States}} Michael Lewis | [[Riley & Scott Mk III C]] | rowspan=2 | {{Dunlop}} | rowspan=2 | 69 |- | Elan 6L8 6.0L V8 |- ! rowspan=2 | 8 | rowspan=2 | GT1 | rowspan=2 | 35 | rowspan=2 | {{flagicon|Italy}} [[Maserati]] Corse<br>{{flagicon|USA}} [[Risi Competizione]] | rowspan=2 | {{flagicon|Italy}} [[Andrea Bertolini]]<br>{{flagicon|Italy}} Fabrizio de Simone | [[Maserati MC12]] | rowspan=2 | {{Pirelli}} | rowspan=2 | 69 |- | [[Maserati]] 6.0L V12 |- style="font-weight:bold" ! rowspan=2 | 9 | rowspan=2 | GT2 | rowspan=2 | 31 | rowspan=2 | {{flagicon|United States}} Petersen Motorsports<br>{{flagicon|United States}} White Lightning Racing | rowspan=2 | {{flagicon|United States}} [[Patrick Long]]<br>{{flagicon|Germany}} [[Jörg Bergmeister]] | [[Porsche 911 GT3]]-RSR | rowspan=2 | {{Michelin}} | rowspan=2 | 69 |- style="font-weight:bold" | [[Porsche]] 3.6L Flat-6 |- ! rowspan=2 | 10 | rowspan=2 | GT2 | rowspan=2 | 23 | rowspan=2 | {{flagicon|United States}} [[Alex Job Racing]] | rowspan=2 | {{flagicon|Germany}} [[Timo Bernhard]]<br>{{flagicon|France}} [[Romain Dumas]] | [[Porsche 911 GT3]]-RSR | rowspan=2 | {{Michelin}} | rowspan=2 | 69 |- | [[Porsche]] 3.6L Flat-6 |- ! rowspan=2 | 11 | rowspan=2 | GT2 | rowspan=2 | 45 | rowspan=2 | {{flagicon|United States}} [[Flying Lizard Motorsports]] | rowspan=2 | {{flagicon|United States}} [[Johannes van Overbeek]]<br>{{flagicon|United States}} [[Jon Fogarty]] | [[Porsche 911 GT3]]-RSR | rowspan=2 | {{Michelin}} | rowspan=2 | 69 |- | [[Porsche]] 3.6L Flat-6 |- ! rowspan=2 | 12 | rowspan=2 | LMP1 | rowspan=2 | 16 | rowspan=2 | {{flagicon|United States}} [[Dyson Racing]] | rowspan=2 | {{flagicon|United States}} [[Butch Leitzinger]]<br>{{flagicon|United Kingdom}} James Weaver | [[MG (car)|MG]]-[[Lola Racing Cars|Lola]] EX257 | rowspan=2 | {{Michelin}} | rowspan=2 | 68 |- | [[MG (car)|MG]] (AER) XP20 2.0L Turbo I4 |- ! rowspan=2 | 13 | rowspan=2 | GT2 | rowspan=2 | 43 | rowspan=2 | {{flagicon|United States}} BAM! | rowspan=2 | {{flagicon|Germany}} [[Mike Rockenfeller]]<br>{{flagicon|Germany}} [[Wolf Henzler]] | [[Porsche 911 GT3]]-RSR | rowspan=2 | {{Yokohama}} | rowspan=2 | 68 |- | [[Porsche]] 3.6L Flat-6 |- ! rowspan=2 | 14 | rowspan=2 | LMP2 | rowspan=2 | 19 | rowspan=2 | {{flagicon|United States}} Van der Steur Racing | rowspan=2 | {{flagicon|United States}} Gunnar van der Steur<br>{{flagicon|United Kingdom}} Ben Devlin | [[Lola Racing Cars|Lola]] B2K/40 | rowspan=2 | {{Dunlop}} | rowspan=2 | 67 |- | [[Nissan]] (AER) 3.0L V6 |- ! rowspan=2 | 15 | rowspan=2 | GT2 | rowspan=2 | 50 | rowspan=2 | {{flagicon|United States}} [[Panoz]] Motor Sports | rowspan=2 | {{flagicon|United States}} [[Bill Auberlen]]<br>{{flagicon|United Kingdom}} [[Robin Liddell]] | [[Panoz Esperante]] GT-LM | rowspan=2 | {{Pirelli}} | rowspan=2 | 67 |- | [[Ford Motor Company|Ford]] (Elan) 5.0L V8 |- ! rowspan=2 | 16 | rowspan=2 | GT2 | rowspan=2 | 24 | rowspan=2 | {{flagicon|United States}} [[Alex Job Racing]] | rowspan=2 | {{flagicon|United States}} Ian Baas<br>{{flagicon|United States}} [[Darren Law]] | [[Porsche 911 GT3]]-RSR | rowspan=2 | {{Michelin}} | rowspan=2 | 67 |- | [[Porsche]] 3.6L Flat-6 |- ! rowspan=2 | 17 | rowspan=2 | GT2 | rowspan=2 | 51 | rowspan=2 | {{flagicon|United States}} [[Panoz]] Motor Sports | rowspan=2 | {{flagicon|United States}} [[Bryan Sellers]]<br>{{flagicon|United Kingdom}} [[Marino Franchitti]] | [[Panoz Esperante]] GT-LM | rowspan=2 | {{Pirelli}} | rowspan=2 | 67 |- | [[Ford Motor Company|Ford]] (Elan) 6.0L V8 |- ! rowspan=2 | 18 | rowspan=2 | GT2 | rowspan=2 | 44 | rowspan=2 | {{flagicon|United States}} [[Flying Lizard Motorsports]] | rowspan=2 | {{flagicon|United States}} Lonnie Pechnik<br>{{flagicon|United States}} [[Seth Neiman]] | [[Porsche 911 GT3]]-RSR | rowspan=2 | {{Michelin}} | rowspan=2 | 67 |- | [[Ford Motor Company|Ford]] (Elan) 5.0L V8 |- ! rowspan=2 | 19 | rowspan=2 | GT2 | rowspan=2 | 79 | rowspan=2 | {{flagicon|United States}} J3 Racing | rowspan=2 | {{flagicon|United States}} Justin Jackson<br>{{flagicon|United Kingdom}} [[Tim Sugden]] | [[Porsche 911 GT3]]-RSR | rowspan=2 | {{Pirelli}} | rowspan=2 | 66 |- | [[Porsche]] 3.6L Flat-6 |- ! rowspan=2 | 20 | rowspan=2 | GT1 | rowspan=2 | 71 | rowspan=2 | {{flagicon|United States}} Carsport America | rowspan=2 | {{flagicon|Italy}} [[Michele Rugolo]]<br>{{flagicon|United States}} Tom Weickardt | [[Dodge Viper GTS-R]] | rowspan=2 | {{Pirelli}} | rowspan=2 | 66 |- | [[Dodge]] 8.0L V10 |- ! rowspan=2 | 21<br>DNF | rowspan=2 | GT1 | rowspan=2 | 5 | rowspan=2 | {{flagicon|United States}} Pacific Coast Motorsports | rowspan=2 | {{flagicon|United States}} [[Alex Figge]]<br>{{flagicon|United Kingdom}} [[Ryan Dalziel]] | [[Chevrolet Corvette C5]]-R | rowspan=2 | {{Yokohama}} | rowspan=2 | 61 |- | [[Chevrolet]] 7.0L V8 |- ! rowspan=2 | 22<br>DNF | rowspan=2 | GT1 | rowspan=2 | 63 | rowspan=2 | {{flagicon|United States}} ACEMCO Motorsports | rowspan=2 | {{flagicon|United States}} [[Terry Borcheller]]<br>{{flagicon|United Kingdom}} [[Johnny Mowlem]] | [[Saleen S7]]-R | rowspan=2 | {{Michelin}} | rowspan=2 | 58 |- | [[Ford Motor Company|Ford]] 7.0L V8 |- ! rowspan=2 | 23<br>DNF | rowspan=2 | LMP2 | rowspan=2 | 37 | rowspan=2 | {{flagicon|United States}} [[Intersport Racing]] | rowspan=2 | {{flagicon|United States}} Clint Field<br>{{flagicon|United Kingdom}} Liz Halliday | [[Lola Racing Cars|Lola]] B05/40 | rowspan=2 | {{Goodyear}} | rowspan=2 | 13 |- | AER P07 2.0L Turbo I4 |- ! rowspan=2 | 23<br>DNF | rowspan=2 | LMP2 | rowspan=2 | 8 | rowspan=2 | {{flagicon|United States}} B-K Motorsport | rowspan=2 | {{flagicon|United States}} [[Guy Cosmo]]<br>{{flagicon|United States}} Jamie Bach | [[Courage Competition|Courage]] C65 | rowspan=2 | {{Goodyear}} | rowspan=2 | 2 |- | [[Mazda]] R20B 2.0L 3-[[Wankel engine|Rotor]] |}
==Statistics== * Pole Position - #16 Dyson Racing - 1:53.042 * Fastest Lap - #2 ADT Champion Racing - 1:54.569 * Distance - {{convert|291.456|mi|km}} * Average Speed - {{convert|105.489|mi/h|km/h|abbr=on}}
==External links== *{{cite web |url= http://www.imsaracing.net/2003/events/roadamerica05/ALMS_OfficialRace.pdf |title= Official Results |access-date= 2006-11-05 |archive-url= https://web.archive.org/web/20061110072551/http://www.imsaracing.net/2003/events/roadamerica05/ALMS_OfficialRace.pdf |archive-date= 2006-11-10 |url-status= dead }} {{small|(50.6 [[Kibibyte|KiB]])}}
{{Sportscar Race Report | Year_of_race = 2005 | Sportscar_Series = American Le Mans Series | Previous_race_in_season = [[2005 Portland Grand Prix]] | Next_race_in_season = [[2005 Grand Prix of Mosport]] }}{{Road Race Showcase at Road America}}
[[Category:2005 American Le Mans Series|Road America]] [[Category:Road America 500]] [[Category:2005 in sports in Wisconsin|Road America 500]] [[Category:August 2005 sports events in the United States|Road America 500]]