2021 GT4 America Series

The 2021 Pirelli GT4 America Series is the third season of the GT4 America Series. The season begins on 5 March at Sonoma Raceway and ends on 17 October at Indianapolis Motor Speedway.

Calendar

The final calendar was announced on 3 October 2020, featuring seven rounds.^[1] The round at Canadian Tire Motorsports Park was later canceled.^[2]

Round	Circuit	Date
1	Sonoma Raceway, Sonoma, California	5–7 March
2	Circuit of the Americas, Elroy, Texas	30 April-2 May
3	Virginia International Raceway, Alton, Virginia	11–13 June
4	Road America, Elkhart Lake, Wisconsin	27–29 August
5	Watkins Glen International, Watkins Glen, New York	17–19 September
6	Indianapolis Motor Speedway, Speedway, Indiana	15–17 October
Cancelled due to the COVID-19 pandemic
	Circuit	Original Date
	Canadian Tire Motorsports Park, Bowmanville, Ontario	21–23 May

Entry list

Team	Car	No.	Drivers	Class	Rounds
Notlad Racing by RS1^[3]	Aston Martin Vantage AMR GT4	00	Matt Dalton^[3]	PA	1–3
Notlad Racing by RS1^[3]	Aston Martin Vantage AMR GT4	00	Patrick Gallagher^[3]	PA	1–3
Dexter Racing^[3]	Aston Martin Vantage AMR GT4	062	Ryan Dexter^[3]	S	1–3
Dexter Racing^[3]	Aston Martin Vantage AMR GT4	062	Warren Dexter^[3]	S	1–3
GMG Racing^[4]	Aston Martin Vantage AMR GT4	2	Jason Bell^[4]	PA	1–3
	Aston Martin Vantage AMR GT4	2	Andrew Davis^[4]	PA	1–3
	Audi R8 LMS GT4 Evo	8	Andy Lee^[4]	PA	1–3
	Audi R8 LMS GT4 Evo	8	Elias Sabo^[4]	PA	1–3
Motorsport USA^[3]	McLaren 570S GT4	5	Michael McAleenan^[3]	Am	1–2
		5	Dan Rogers^[3]	Am	1–2
		23	Cavan O'Keefe^[3]	Am	1–2
			Memo Gidley^[3]		1
			Jerold Lowe^[5]		2
		111	Todd Clarke^[3]	Am	1–2
		111	Ty Clarke^[3]	Am	1–2
Nolasport with OGH^[3]	Porsche 718 Cayman GT4 Clubsport	7	Sean Gibbons^[3]	Am	1–3
Nolasport with OGH^[3]		7	Sam Owens^[3]	Am	1–3
Nolasport^[3]		46	Russell Walker^[3]	Am	1–3
			Patrick Byrne^[3]		1
			David Walker^[5]		2-3
		47	Jason Hart^[3]	PA	1–3
		47	Matt Travis^[3]	PA	1–3
Classic BMW^[5]	BMW M4 GT4	11	Toby Grahovec^[5]	S	2-3
Classic BMW^[5]	BMW M4 GT4	11	Stevan McAleer^[5]	S	2-3
BSport Racing^[3]	Aston Martin Vantage AMR GT4	15	Kenton Koch^[3]	PA	1–3
BSport Racing^[3]	Aston Martin Vantage AMR GT4	15	Bryan Putt^[3]	PA	1–3
Capstone Motorsports^[3]	Mercedes-AMG GT4	16	John Allen^[3]	Am	1–3
Capstone Motorsports^[3]	Mercedes-AMG GT4	16	Kris Wilson^[3]	Am	1–3
The Racer's Group^[3]	Porsche 718 Cayman GT4 Clubsport	17	James Rappaport^[3]	Am	1–3
			Robert Orcutt^[3]		1
			Todd Hetherington^[5]		2–3
		66	Derek DeBoer^[3]	PA	1–3
		66	Spencer Pumpelly^[3]	PA	1–3
TGR Forbush Performance^[6]	Toyota GR Supra GT4	18	Matt Forbush^[6]	Am	1–3
TGR Forbush Performance^[6]	Toyota GR Supra GT4	18	Damon Surzyshyn^[6]	Am	1–3
CCR Racing / Team TFB^[3]	BMW M4 GT4	22	Tim Barber^[3]	S	1–3
CCR Racing / Team TFB^[3]	BMW M4 GT4	22	Cole Ciraulo^[3]	S	1–3
Heart of Racing Team^[3]	Aston Martin Vantage AMR GT4	24	Ian James^[3]	PA	1–3
Heart of Racing Team^[3]	Aston Martin Vantage AMR GT4	24	Gray Newell^[3]	PA	1–3
ST Racing^[7]	BMW M4 GT4	28	Ryan Eversley^[7]	PA	1–3
		28	Joe Rubbo^[7]	PA	1–3
		38	Bryson Lew^[7]	S	1–2
			Tomas Mejia^[7]		1–3
			Nick Wittmer^[5]		2–3^{[N 1]}
Rearden Racing^[3]	Audi R8 LMS GT4 Evo	29	Dmitri Novikov^[8]	PA	2
		29	Owen Trinkler^[8]	PA	2
		888	Kris McCoy^[3]	PA	1
			Jeff Westphal^[3]	PA	1
			Jeff Westphal^[3]	S	2
			Vesko Kozarov^[8]	S	2
Bimmerworld Racing^[9]	BMW M4 GT4	34	Bill Auberlen^[9]	PA	1–3
		34	James Walker^[9]	PA	1–3
		36	James Clay^[9]	PA	1–3
		36	Nick Galante^[9]	PA	1–3
		94	Chandler Hull^[9]	S	1–3
		94	Jon Miller^[9]	S	1–3
RENNtech Motorsports^[10]	Mercedes-AMG GT4	39	Chris Cagnazzi^[11]	PA	2–3
		39	Guy Cosmo^[11]	PA	2–3
		89	Ross Chouest^[10]	PA	1–3
		89	Aaron Povoledo^[10]	PA	1–3
Murillo Racing^[12]	Porsche 718 Cayman GT4 Clubsport	43	Aurora Straus^[12]	Am	1–2
			Christina Nielsen^[12]		1
			Jeff Mosing^[5]		2
	Mercedes-AMG GT4	72	Kenny Murillo^[3]	S	1–3
	Mercedes-AMG GT4	72	Christian Szymczak^[3]	S	1–3
AutoTechnic Racing^[13]	BMW M4 GT4	52	John Capestro-Dubets^[13]	PA	2–3
AutoTechnic Racing^[13]	BMW M4 GT4	52	Tom Capizzi^[13]	PA	2–3
Black Swan Racing^[3]	Porsche Cayman GT4 Clubsport MR	54	Jeroen Bleekemolen^[3]	PA	1–3
Black Swan Racing^[3]	Porsche Cayman GT4 Clubsport MR	54	Tim Pappas^[3]	PA	1–3
WR Racing^[3]	Aston Martin Vantage AMR GT4	59	Brandon Davis^[3]	PA	1–3
WR Racing^[3]	Aston Martin Vantage AMR GT4	59	Paul Terry^[3]	PA	1–3
TGR Smooge Racing^[14]	Toyota GR Supra GT4	68	Kevin Conway^[14]	Am	1–3
TGR Smooge Racing^[14]	Toyota GR Supra GT4	68	John Geesbreght^[14]	Am	1–3
Marco Polo Motorsports^[15]	KTM X-Bow GT4 Evo	71	Nicolai Elghanayan^[15]	S	1–3
Marco Polo Motorsports^[15]	KTM X-Bow GT4 Evo	71	Mads Siljehaug^[15]	S	1–3
Random Vandals Racing^[16]	BMW M4 GT4	98	Paul Sparta^[16]	Am	1–3
			Al Carter^[16]		1–2
			Andrew Wikstrom		3
Stephen Cameron Racing^[3]	BMW M4 GT4	119	Gregory Liefooghe^[3]	PA	1–3
Stephen Cameron Racing^[3]	BMW M4 GT4	119	Sean Quinlan^[3]	PA	1–3
RHC Jorgensen / Strom^[3]	BMW M4 GT4	450	Daren Jorgensen^[3]	PA	1–2
RHC Jorgensen / Strom^[3]	BMW M4 GT4	450	Brett Strom^[3]	PA	1–2
CarBahn Motorsports with Peregrine Racing^[5]	Audi R8 LMS GT4 Evo	930	Tom Dyer^[5]	PA	2–3
CarBahn Motorsports with Peregrine Racing^[5]	Audi R8 LMS GT4 Evo	930	Mark Siegel^[5]	PA	2–3

Icon	Class
S	Silver Cup
PA	Pro-Am Cup
Am	Am Cup

Footnotes

^ Lew competed in the first race at Sonoma, while Wittmer competed in the second.

Race results

Bold indicates overall winner.

Round		Circuit	Pole position	Silver Winners	Pro-Am Winners	Am Winners
1	R1	Sonoma	No. 47 Nolasport	No. 062 Dexter Racing	No. 47 Nolasport	No. 46 Nolasport
	R1		Jason Hart Matt Travis	Ryan Dexter Warren Dexter	Jason Hart Matt Travis	Patrick Byrne Russell Walker
	R2		No. 47 Nolasport	No. 72 Murillo Racing	No. 47 Nolasport	No. 68 TGR Smooge Racing
	R2		Jason Hart Matt Travis	Kenny Murillo Christian Szymczak	Jason Hart Matt Travis	Kevin Conway John Geesbreght
2	R1	Austin	No. 47 Nolasport	No. 94 Bimmerworld Racing	No. 47 Nolasport	No. 68 TGR Smooge Racing
	R1		Jason Hart Matt Travis	Chandler Hull Jon Miller	Jason Hart Matt Travis	Kevin Conway John Geesbreght
	R2		No. 47 Nolasport	No. 72 Murillo Racing	No. 47 Nolasport	No. 7 Nolasport with OGH
	R2		Jason Hart Matt Travis	Kenny Murillo Christian Szymczak	Jason Hart Matt Travis	Sean Gibbons Sam Owen
3	R1	Virginia
	R1
	R2
	R2
4	R1	Road America
	R1
	R2
	R2
5	R1	Watkins Glen
	R1
	R2
	R2
6	R1	Indianapolis
	R1
	R2
	R2

Championship standings

Scoring system

Championship points are awarded for the first ten positions in each race. Entries are required to complete 75% of the winning car's race distance in order to be classified and earn points. Individual drivers are required to participate for a minimum of 25 minutes in order to earn championship points in any SprintX race.

Position	1st	2nd	3rd	4th	5th	6th	7th	8th	9th	10th
Points	25	18	15	12	10	8	6	4	2	1

Driver's championships

Pos.	Driver	Team	SON		AUS		VIR	ELK	WGL	IMS	Points
Silver Cup
1	Kenny Murillo Christian Szymczak	Murillo Racing	3	2	Ret	2					68
2	Ryan Dexter Warren Dexter	Dexter Racing	2	4	25	8					64
3	Tim Barber Cole Ciraulo	CCR Racing / Team TFB	8	15	15	18					47
4	Nicolai Elghanayan Mads Siljehaug	Marco Polo Motorsports	9	6	19	9					47
5	Chandler Hull Jon Miller	Bimmerworld Racing	18	31	7	Ret					43
6	Tomas Mejia	ST Racing	27	18	17	12					38
7	Stevan McAleer Toby Grahovec	Classic BMW			11	4					33
8	Bryson Lew	ST Racing	27	18	17						28
9	Vesko Kozarov Jeff Westphal	Rearden Racing			9	22					24
10	Nick Wittmer	ST Racing				12					10
Pro-Am Cup
1	Jason Hart Matt Travis	Nolasport	1	1	1	1					100
2	Brandon Davis Paul Terry	WR Racing	10	3	12	7					42
3	Gregory Liefooghe Sean Quinlan	Stephen Cameron Racing	6	9	34	3					41
4	Kenton Koch Bryan Putt	BSport Racing	4	8	18	6					40
5	Jeroen Bleekemolen Tim Pappas	Black Swan Racing	11	7	2	21					39
6	Ross Chouest Aaron Povoledo	RENNtech Motorsports	16	16	3	5					33
7	Derek DeBoer Spencer Pumpelly	The Racer's Group	19	5	10	14					28
8	Bill Auberlen James Walker	Bimmerworld Racing	7	27	4	Ret					24
9	Jason Bell Andrew Davis	GMG Racing	12	11	6	Ret					18
10	Tom Capizzi John Capestro-Dubets	AutoTechnic Racing			5	15					14
11	Ryan Eversley Joe Rubbo	ST Racing	24	25	35	10					8
12	Kris McCoy Jeff Westphal	Rearden Racing	23	10							6
13	Matt Dalton Patrick Gallagher	Notlad Racing by RS1	14	33	Ret	25					4
14	James Clay Nick Galante	Bimmerworld Racing	25	12	13	Ret					4
15	Ian James Gray Newell	Heart of Racing Team	20	22	20	19					2
16	Andy Lee Elias Sabo	GMG Racing	29	26	16	26					1
	Daren Jorgensen Brett Strom	RHC Jorgensen / Storm	30	32	28	28					0
	Dmitri Novikov Owen Trinkler	Rearden Racing			24	29					0
	Mark Siegel Tom Dyer	CarBahn Motorsports with Peregrine Racing			32	30					0
	Chris Cagnazzi Guy Cosmo	RENNtech Motorsports			36	Ret					0
Am Cup
1	Kevin Conway John Geesbreght	TGR Smooge Racing	15	13	8	17					77
2	John Allen Kris Wilson	Capstone Motorsports	13	14	14	Ret					54
3	Russell Walker	Nolasport	5	17	27	23					54
4	Cavan O'Keefe	Motorsports USA	22	20	22	13					48
5	Sean Gibbons Sam Owens	Nolasport with OGH	26	24	26	11					43
6	Patrick Byrne	Nolasport	5	17							40
7	Michael McAleenan Dan Rogers	Motorsports USA	17	21	29	16					39
8	Jerold Lowe	Motorsports USA			22	13					30
9	Al Carter Paul Sparta	Random Vandals Racing	28	30	21	20					29
10	Todd Clarke Ty Clarke	Motorsports USA	21	23	23	31					28
11	Aurora Straus	Murillo Racing	Ret	19	31	24					19
12	Memo Gidley	Motorsports USA	22	20							18
13	David Walker	Nolasport			27	23					14
14	Christina Nielsen	Murillo Racing	Ret	19							12
15	Matt Forbush Damon Surzyshyn	TGR Forbush Performance	32	29	30	27					8
16	Jeff Mosing	Murillo Racing			31	24					7
17	Robert Orcutt	The Racer's Group	31	28							4
18	James Rappaport	The Racer's Group	31	28	33	Ret					4
	Todd Hetherington	The Racer's Group			33	Ret					0
Pos.	Driver	Team	SON		AUS		VIR	ELK	WGL	IMS	Points

Key
Colour	Result
Gold	Race winner
Silver	2nd place
Bronze	3rd place
Green	Points finish
Blue	Non-points finish
Blue	Non-classified finish (NC)
Purple	Did not finish (Ret)
Black	Disqualified (DSQ)
Black	Excluded (EX)
White	Did not start (DNS)
	Race cancelled (C)
	Withdrew (WD)
Blank	Did not participate

Bold – Pole
Italics – Fastest Lap

Team's championships

Pos.	Team	Manufacturer	SON		AUS	VIR	ELK	WGL	IMS	Points
Silver Cup
1	Dexter Racing	Aston Martin	2	4	25					49
2	Murillo Racing	Mercedes-AMG	3	2	Ret					43
3	Bimmerworld Racing	BMW	18	31	7					43
4	CCR Racing / Team TFB	BMW	8	15	15					39
5	Marco Polo Motorsports	KTM	9	6	19					35
6	ST Racing	BMW	27	18	17					28
7	Rearden Racing	Audi			9					18
8	Classic BMW	BMW			11					15
Pro-Am Cup
1	Nolasport	Porsche	1	1	1					75
2	Black Swan Racing	Porsche	11	7	2					38
3	WR Racing	Aston Martin	10	3	12					32
4	BSport Racing	Aston Martin	4	8	18					30
5	Bimmerworld Racing	BMW	7	12	4					26
6	Stephen Cameron Racing	BMW	6	9	34					23
7	The Racer's Group	Porsche	19	5	10					22
8	GMG Racing	Aston Martin Audi	12	11	6					18
9	RENNtech Motorsports	Mercedes-AMG	16	16	3					18
10	AutoTechnic Racing	BMW			5					10
11	Rearden Racing	Audi	23	10	24					6
12	Notlad Racing by RS1	Aston Martin	14	33	Ret					4
13	Heart of Racing Team	Aston Martin	20	22	20					1
	ST Racing	BMW	24	25	35					0
	RHC Jorgensen / Strom	BMW	30	32	28					0
	CarBahn with Peregrine Racing	Audi			32					0
Am Cup
1	TGR Smooge Racing	Toyota	15	13	8					65
2	Capstone Motorsports	Mercedes-AMG	13	14	14					54
3	Nolasport	Porsche	5	17	26					50
4	Motorsports USA	McLaren	17	20	22					34
5	Random Vandals Racing	BMW	28	30	21					25
6	The Racer's Group	Porsche	31	28	33					20
7	TGR Forbush Performance	Toyota	32	29	30					20
8	Murillo Racing	Porsche	Ret	19	31					18
Pos.	Team	Manufacturer	SON		AUS	VIR	ELK	WGL	IMS	Points

References

^ "A Return to the Roots of GT Sprint Racing in North America, SRO America Announces GT America for 2021". gt4-america.com. SRO Motorsports Group America. 3 October 2020. Retrieved 1 March 2021.
^ "SRO America Cancels CTMP Round for Second Straight Year". sportscar365.com. 2 March 2021. Retrieved 6 March 2021.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa ^ab ^ac ^ad ^ae ^af ^ag ^ah ^ai ^aj ^ak ^al ^am ^an ^ao ^ap ^aq ^ar ^as ^at ^au ^av ^aw ^ax ^ay ^az ^ba ^bb ^bc Lloyd, Daniel (26 February 2021). "Winward, Turner Listed in Pro Class for Sonoma Opener". sportscar365.com. John Dagys Media. Retrieved 26 February 2021.
^ ^a ^b ^c ^d ^e "GMG Set For Another Banner Year in SRO with Multi-Car Program". gt4-america.com. SRO Motorsports Group America. 26 January 2021. Retrieved 26 January 2021.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k "2021 Entry List - Circuit of the Americas - GT4 America". gt4-america.com. SRO Motorsports Group America. Retrieved 26 May 2021.
^ ^a ^b ^c "Forbush Performance Launches with the First Toyota GR Supra GT4 in Pirelli GT4 America". gt4-america.com. SRO Motorsports Group America. 11 January 2021. Retrieved 11 January 2021.
^ ^a ^b ^c ^d ^e "ST Racing Set to Compete in the Full Pirelli GT4 America Championship in 2021". gt4-america.com. SRO Motorsports Group America. 5 February 2021. Retrieved 5 February 2021.
^ ^a ^b ^c "Rearden Racing Enters Four GT Machines for COTA Doubleheader With Burton/Kovarov, Novikov/Trinkler, McCoy/Westphal Lineups". gt4-america.com. SRO Motorsports Group America. 28 April 2021. Retrieved 26 May 2021.
^ ^a ^b ^c ^d ^e ^f ^g "BimmerWorld Racing: 2021 SRO GT4 America Season Announcement". gt4-america.com. SRO Motorsports Group America. 25 February 2021. Retrieved 25 February 2021.
^ ^a ^b ^c "RENNtech Returns to Pro Racing with Chouest/Povoledo and the Westport #89 RENNtech Mercedes-AMG GT4". gt4-america.com. SRO Motorsports Group America. 25 February 2021. Retrieved 25 February 2021.
^ ^a ^b "Chris Cagnazzi, Guy Cosmo join RENNtech Motorsports in Mercedes-AMG GT4". gt4-america.com. SRO Motorsports Group America. 26 April 2021. Retrieved 30 April 2021.
^ ^a ^b ^c "Three Women, No Limits: Straus, Nielsen, Legge to Run Pirelli GT4 America With Murillo Racing in Richard Mille Porsche". gt4-america.com. SRO Motorsports Group America. 24 February 2021. Retrieved 24 February 2021.
^ ^a ^b ^c "AutoTechnic Racing Enters Pirelli GT4 America Competition". gt4-america.com. SRO Motorsports Group America. 19 April 2021. Retrieved 22 April 2021.
^ ^a ^b ^c "SMOOGE Racing Set To Campaign Full Season with Toyota GR Supra GT4 in Pirelli GT4 America". gt4-america.com. SRO Motorsports Group America. 5 February 2021. Retrieved 5 February 2021.
^ ^a ^b ^c Lloyd, Daniel (30 April 2021). "Marco Polo Commits to Full Season With KTM X-Bow GT4 Evo". sportscar365.com. John Dagys Media. Retrieved 30 April 2021.
^ ^a ^b ^c "Random Vandals Racing Joins SRO Pirelli GT4 America". gt4-america.com. SRO Motorsports Group America. 16 February 2021. Retrieved 16 February 2021.

External links

Official Website

[8] Lew competed in the first race at Sonoma, while Wittmer competed in the second.

[2021Calendar-1] "A Return to the Roots of GT Sprint Racing in North America, SRO America Announces GT America for 2021". gt4-america.com. SRO Motorsports Group America. 3 October 2020. Retrieved 1 March 2021.

[2] "SRO America Cancels CTMP Round for Second Straight Year". sportscar365.com. 2 March 2021. Retrieved 6 March 2021.

[32Entries-3] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa ^ab ^ac ^ad ^ae ^af ^ag ^ah ^ai ^aj ^ak ^al ^am ^an ^ao ^ap ^aq ^ar ^as ^at ^au ^av ^aw ^ax ^ay ^az ^ba ^bb ^bc Lloyd, Daniel (26 February 2021). "Winward, Turner Listed in Pro Class for Sonoma Opener". sportscar365.com. John Dagys Media. Retrieved 26 February 2021.

[GMGMultiEntries-4] "GMG Set For Another Banner Year in SRO with Multi-Car Program". gt4-america.com. SRO Motorsports Group America. 26 January 2021. Retrieved 26 January 2021.

[EntryList2-5] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k "2021 Entry List - Circuit of the Americas - GT4 America". gt4-america.com. SRO Motorsports Group America. Retrieved 26 May 2021.

[TGRForbush-6] "Forbush Performance Launches with the First Toyota GR Supra GT4 in Pirelli GT4 America". gt4-america.com. SRO Motorsports Group America. 11 January 2021. Retrieved 11 January 2021.

[STRacingBMW-7] "ST Racing Set to Compete in the Full Pirelli GT4 America Championship in 2021". gt4-america.com. SRO Motorsports Group America. 5 February 2021. Retrieved 5 February 2021.

[ReardenCOTA-9] "Rearden Racing Enters Four GT Machines for COTA Doubleheader With Burton/Kovarov, Novikov/Trinkler, McCoy/Westphal Lineups". gt4-america.com. SRO Motorsports Group America. 28 April 2021. Retrieved 26 May 2021.

[BimmerworldBMW-10] ^ ^a ^b ^c ^d ^e ^f ^g "BimmerWorld Racing: 2021 SRO GT4 America Season Announcement". gt4-america.com. SRO Motorsports Group America. 25 February 2021. Retrieved 25 February 2021.

[RENNtechAMG-11] "RENNtech Returns to Pro Racing with Chouest/Povoledo and the Westport #89 RENNtech Mercedes-AMG GT4". gt4-america.com. SRO Motorsports Group America. 25 February 2021. Retrieved 25 February 2021.

[RENNtech2-12] "Chris Cagnazzi, Guy Cosmo join RENNtech Motorsports in Mercedes-AMG GT4". gt4-america.com. SRO Motorsports Group America. 26 April 2021. Retrieved 30 April 2021.

[MurilloPorsche-13] "Three Women, No Limits: Straus, Nielsen, Legge to Run Pirelli GT4 America With Murillo Racing in Richard Mille Porsche". gt4-america.com. SRO Motorsports Group America. 24 February 2021. Retrieved 24 February 2021.

[AutoTechnic-14] "AutoTechnic Racing Enters Pirelli GT4 America Competition". gt4-america.com. SRO Motorsports Group America. 19 April 2021. Retrieved 22 April 2021.

[TGRSmooge-15] "SMOOGE Racing Set To Campaign Full Season with Toyota GR Supra GT4 in Pirelli GT4 America". gt4-america.com. SRO Motorsports Group America. 5 February 2021. Retrieved 5 February 2021.

[MarcoPoloKTM-16] Lloyd, Daniel (30 April 2021). "Marco Polo Commits to Full Season With KTM X-Bow GT4 Evo". sportscar365.com. John Dagys Media. Retrieved 30 April 2021.

[RandomVandalsBMW-17] "Random Vandals Racing Joins SRO Pirelli GT4 America". gt4-america.com. SRO Motorsports Group America. 16 February 2021. Retrieved 16 February 2021.

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