Indycar Grand Prix of Sonoma

The Indycar Grand Prix of Sonoma was an IndyCar Series race held at Sonoma Raceway in Sonoma, California. The USAC Championship Car circuit raced at the circuit in 1970. In 2005, American open wheel racing returned to the circuit with an IndyCar Series event. The 2006 event saw rookie Marco Andretti win his first career race. It marked the record youngest winner (19 years, 5 months, 14 days) of a major open-wheel racing event at the time.

Indycar Grand Prix of Sonoma

IndyCar Series
Venue	Sonoma Raceway
First race	1970
First ICS race	2005
Last race	2018
Distance	202.725 miles (326.254 km)
Laps	85
Previous names	Golden State 150 (1970) Argent Mortgage Indy Grand Prix (2005) Indy Grand Prix of Sonoma (2006, 2010–2011) Motorola Indy 300 Pres. by Jackson Rancheria Casino & Hotel (2007) Peak Antifreeze & Motor Oil Indy Grand Prix of Sonoma County (2008) Peak Antifreeze Grand Prix of Sonoma County (2009) GoPro Indy Grand Prix of Sonoma (2012–2014) GoPro Grand Prix of Sonoma (2015–2017) INDYCAR Grand Prix of Sonoma (2018)
Most wins (driver)	Will Power, Scott Dixon (3)
Most wins (team)	Team Penske (7)

The IndyCar Series race utilizes a modified 2.2-mile (3.5 km) version of the road course, the same used by AMA Superbike. The circuit includes the carousel, making it longer than the NASCAR layout, but shorter than the full 2.52-mile (4.06 km) course. This course uses turn 7a of the NASCAR course, but skips the hairpin prior to the front straight. The dragstrip is used instead of the keyhole, adding a high speed section immediately following the exit of the carousel.

For 2012, the course was altered. The back hairpin used the inner loop instead of the outer loop used by NASCAR. Turn nine was widened by ten feet while turn eleven at the hairpin was extended by 200 feet.

From 2015 to 2018, the race had served as the IndyCar season finale.

It was announced on July 13, 2018, that the Monterey Grand Prix at WeatherTech Raceway Laguna Seca would replace Sonoma for the 2019 IndyCar Series season.[1]

Past winners

Season	Date	Driver	Team	Chassis	Engine	Race Distance		Race Time	Average Speed (mph)	Report
						Laps	Miles (km)
USAC Championship Car history
1970	April 4	Dan Gurney	All American Racers	Eagle	Ford	60	151.2 (243.332)	1:44:26	87.009	Report
1971 – 2004	Not held
IRL IndyCar Series history
2005	August 28	Tony Kanaan	Andretti Green Racing	Dallara	Honda	80	159.2 (256.207)	2:01:16	91.04	Report
2006	August 27	Marco Andretti	Andretti Green Racing	Dallara	Honda	80	159.2 (256.207)	1:58:06	93.486	Report
2007	August 26	Scott Dixon	Chip Ganassi Racing	Dallara	Honda	80	159.2 (256.207)	1:51:59	98.593	Report
2008	August 24	Hélio Castroneves	Penske Racing	Dallara	Honda	80	159.2 (256.207)	1:50:16	100.254	Report
2009	August 23	Dario Franchitti	Chip Ganassi Racing	Dallara	Honda	75	166.5 (267.955)	1:49:23	94.745	Report
2010	August 22	Will Power	Team Penske	Dallara	Honda	75	166.5 (267.955)	1:52:34	92.063	Report
2011	August 28	Will Power	Team Penske	Dallara	Honda	75	166.5 (267.955)	1:47:30	96.408	Report
2012	August 26	Ryan Briscoe	Team Penske	Dallara	Chevrolet	85	195.755 (315.037)	2:07:03	95.74	Report
2013	August 25	Will Power	Team Penske	Dallara	Chevrolet	85	195.755 (315.037)	2:20:47	86.401	Report
2014	August 24	Scott Dixon	Chip Ganassi Racing	Dallara	Chevrolet	85	195.755 (315.037)	2:09:21	94.026	Report
2015	August 30	Scott Dixon	Chip Ganassi Racing	Dallara	Chevrolet	85	195.755 (315.037)	2:09:14	94.117	Report
2016	September 18	Simon Pagenaud	Team Penske	Dallara	Chevrolet	85	195.755 (315.037)	2:00:13	101.181	Report
2017	September 17	Simon Pagenaud	Team Penske	Dallara	Chevrolet	85	202.725 (326.254)	1:55:53	104.968	Report
2018	September 16	Ryan Hunter-Reay	Andretti Autosport	Dallara	Honda	85	202.725 (326.254)	2:02:19	99.44	Report
[2]

Support Race History

Indy Lights	Atlantic Championship
Season Date Winning Driver 2005 August 28 Marco Andretti 2006 August 26 Wade Cunningham August 27 Alex Lloyd 2007 August 25 Alex Lloyd August 26 Richard Antinucci 2008 August 23 Franck Perera August 24 Pablo Donoso 2009 August 23 J. R. Hildebrand 2010 August 22 J. K. Vernay 2014 August 23 Jack Harvey August 24 Jack Harvey [3]	Season Date Winning Driver 1980 May 25 Tom Gloy 1983 May 8 Michael Andretti 1984 June 3 Dan Marvin September 30 Dan Marvin 1985 June 2 Jeff Wood September 29 Jeff Wood 1986 June 1 Rod Bennett September 28 Roberto Quintanilla 1987 May 31 Dean Hall August 2 Dean Hall 1988 May 29 Dean Hall August 14 Dean Hall 1989 May 7 R.K. Smith September 10 Joe Sposato 1990 May 6 Mark Dismore [4]

References

1. https://www.sfgate.com/sports/article/IndyCar-swapping-Sonoma-Raceway-for-Laguna-Seca-13073496.php
2. "Infineon Raceway". Champ Car Stats. Archived from the original on 1 August 2011. Retrieved 1 August 2011.
3. "Infineon Raceway". Champ Car Stats. Archived from the original on 1 August 2011. Retrieved 1 August 2011.
4. "Formula Atlantic Series (1974-1990)". Champ Car Stats. Retrieved 1 August 2011.

External links

• IndyCar.com race page