2021 6 Hours of The Glen

The 2021 Sahlen's Six Hours of The Glen was an endurance sports car race sanctioned by the International Motor Sports Association (IMSA). The race was held at Watkins Glen International in Watkins Glen, New York on June 27, 2021. This race was the fifth round of the 2021 IMSA SportsCar Championship, and the third round of the 2021 Michelin Endurance Cup.

Track map of Watkins Glen International

Background

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Watkins Glen International, where the race was held.

International Motor Sports Association's (IMSA) president John Doonan confirmed the race was part of the schedule for the 2021 IMSA SportsCar Championship (IMSA SCC) in September 2020. It was the seventh year the event was held as part of the WeatherTech SportsCar Championship.[1] The 2021 Sahlen's Six Hours of The Glen was the fifth of twelve scheduled sports car races of 2021 by IMSA, and it was the third of four races of the Michelin Endurance Cup (MEC).[2] The race was held at the eleven-turn 3.450 mi (5.552 km) Watkins Glen International in Watkins Glen, New York on June 27, 2021.[3] The race marked IMSA's return to Watkins Glen after the previous year's edition of the event was canceled as a result of the COVID-19 pandemic. With the cancellation of the scheduled event at Canadian Tire Motorsport Park prompting the running of the WeatherTech 240, the six hour race became the first of two races in as many weeks at the track.[4]

On June 18, 2021, IMSA released the latest technical bulletin outlining Balance of Performance for the event.[5] In DPi, The Acura and Cadillac received slight fuel capacity reductions at one and two liters respectively, while the Mazda featured a 3.6 kW horsepower increase. The two GT classes saw minor adjustments, with the GTLM-class Porsche receiving a 10 kg weight reduction, while the Aston Martin received a 7.1 kW horsepower decrease and a two-liter fuel capacity decrease after winning the previous round at Belle Isle.

Before the race Filipe Albuquerque and Ricky Taylor led the DPi Drivers' Championship with 1398 points, ahead of Oliver Jarvis and Harry Tincknell with 1327 points, and Pipo Derani and Felipe Nasr with 1270 points.[6] In LMP2, Scott Huffaker, Mikkel Jensen, and Ben Keating led the Drivers' Championship with 382 points, 32 points ahead of Ryan Dalziel, Dwight Merriman, and Kyle Tilley.[6] With 715 points, Gar Robinson led the LMP3 Drivers' Championship, 25 points ahead of Jon Bennett and Colin Braun.[6] Nicky Catsburg, Antonio García, and Jordan Taylor led the GTLM Drivers' Championship with 697 points, 41 points ahead of Cooper MacNeil followed by John Edwards, Augusto Farfus, and Jesse Krohn in third.[6] With 920 points, the GTD Drivers' Championship was led by Bill Auberlen and Robby Foley, ahead of Roman De Angelis and Ross Gunn.[6] Cadillac, Chevrolet, and BMW were leading their respective Manufacturers' Championships, while WTR-Konica Minolta Acura, PR1/Mathiasen Motorsports, Riley Motorsports, Corvette Racing, and Turner Motorsport each led their own Teams' Championships.[6]

Entries

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A total of 38 cars took part in the event, split across five classes. 7 cars were entered in DPi, 5 in LMP2, 7 in LMP3, 5 in GTLM, and 14 in GTD. The pre-event entry list contained 40 entries, but both Sean Creech Motorsport and Forty7 Motorsports withdrew their LMP3 entries before the start of the weekend.[7]

DPi featured the expected addition of the Ally Cadillac Racing #48 alongside the six full-season entries in the class.[8] Four of the seven teams also elected to add a third driver to their lineups. In LMP2, United Autosports returned as part of their Michelin Endurance Cup schedule, while James French joined Tower Motorsport By Starworks for the first time in 2021.[9] LMP3 featured a series of additions, including Marco Andretti's addition to the Andretti Autosport entry, United Autosports' IMSA LMP3 debut, and the long-awaited first IMSA SportsCar Championship appearance for Dawson Racing.[10] GTLM saw the return of WeatherTech Racing after they missed the previous round at Detroit, while BMW Team RLL returned as part of their Endurance Cup campaign.[8] In GTD, CarBahn with Peregrine Racing added another event to their Sprint Cup schedule,[8] and NTE Sport returned after most recently appearing at Daytona in January.[11] Wright Motorsports also announced prior to the event that Trent Hindman would replace Ryan Hardwick as Patrick Long's co-driver for the remainder of the season.[8]

Practice

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There were two practice sessions preceding the start of the race on Sunday, one on Friday and one on Saturday. The first session lasted one hour on Friday while the second session lasted 75 minutes on Saturday.[12]

Practice 1

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The first practice session took place at 4:20 pm ET on Friday and ended with Oliver Pla topping the charts for Meyer Shank Racing with Curb-Agajanian, with a lap time of 1:31.056, ahead of the No. 31 Cadillac of Mike Conway.[13] Tristan Nunez was fastest in LMP2 with a time of 1:33.836.[14] Oliver Askew set the fastest time in LMP3.[15] The GTLM class was topped by the No. 4 Corvette Racing Chevrolet Corvette C8.R of Nick Tandy with a time of 1:42.517. Antonio García in the sister No. 3 Corvette Racing entry was second fastest and Jesse Krohn rounded out the top three.[15] Jack Hawksworth was fastest in GTD.[13] The session was red flagged twice. 7 minutes into the session, Kyle Tilley in the No. 18 Era Motorsports Oreca crashed at turn one after making contact with the No. 48 Ally Cadillac Racing Cadillac DPi-V.R of Simon Pagenaud.[13] The final stoppage came when Matt Campbell's No. 79 WeatherTech Racing Porsche 911 RSR-19 suffered suspension damage after going airborne at the Inner Loop causing debris to be scattered onto the track.[16]

Pos. Class No. Team Driver Time Gap
1 DPi 60 Meyer Shank Racing with Curb-Agajanian Oliver Pla 1:31.056 _
2 DPi 31 Whelen Engineering Racing Mike Conway 1:31.647 +0.591
3 DPi 01 Cadillac Chip Ganassi Racing Renger van der Zande 1:31.949 +0.893
Sources:[17][18]

Practice 2

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The second and final practice session took place at 8:00 am ET on Saturday and ended with Dane Cameron topping the charts for Meyer Shank Racing with Curb-Agajanian, with a lap time of 1:30.451. Ricky Taylor's No. 10 Acura was second fastest followed by Pipo Derani in the No. 31 Cadillac.[19] Mikkel Jensen set the fastest time in LMP2.[20] Felipe Fraga was fastest in LMP3 with a time of 1:39.937.[21] The GTLM class topped by the No. 25 BMW Team RLL BMW M8 GTE of Connor De Phillippi with a time of 1:41.977. Antonio García in the No. 3 Corvette Racing entry was second fastest and John Edwards rounded out the top three.[16] Kyle Kirkwood was fastest in GTD.[20] The session saw one stoppage when Steven Thomas locked the No. 11 WIN Autosport Oreca 07's brakes at turn eight and hit the wall before collecting Zacharie Robichon's No. 9 Porsche.[16][21]

Pos. Class No. Team Driver Time Gap
1 DPi 60 Meyer Shank Racing with Curb-Agajanian Dane Cameron 1:30.451 _
2 DPi 10 WTR-Konica Minolta Acura Ricky Taylor 1:30.682 +0.231
3 DPi 31 Whelen Engineering Racing Pipo Derani 1:30.893 +0.442
Sources:[22][23]

Qualifying

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Qualifying was broken into four sessions.[12] The first was for cars in GTD class. Kyle Kirkwood qualified on pole for the class driving the No. 14 car for Vasser Sullivan Racing, beating Trent Hindman in the No. 16 Porsche by more than three-tenths of a second.[24] Jaden Conwright in the No. 42 NTE Sport Audi was third followed by the No. 28 Mercedes-AMG of Daniel Morad, and The No. 96 Turner Motorsport BMW of Robby Foley rounded out the top five.[25]

The second session was for cars in the GTLM and GTD classes. Antonio García qualified on pole in GTLM driving the No. 3 car for Corvette Racing, besting teammate Tommy Milner in the sister No. 4 Corvette Racing entry. Connor De Phillippi's No. 25 BMW was third, with the sister No. 24 car of John Edwards fourth. MacNeil rounded out the GTLM qualifiers.[25] Jack Hawksworth set the fastest time in the GTD points paying session driving the No. 14 car for Vasser Sullivan Racing and earned 35 championship points. Hawksworth was 0.282 seconds clear of teammate Zach Veach in the sister No. 12 Vasser Sullivan Racing entry.[26] Patrick Long was third in the No. 16 Wright Motorsports Porsche followed by Richard Heistand in the No. 39 Audi.[25]

The third session was for cars in the LMP3 class. Austin McCusker qualified on pole for the class driving the No. 2 car for United Autosports. McCusker was 0.570 second clear of Jarett Andretti in the No. 36 Andretti Autosport Ligier. Following in third was George Kurtz's No. 54 Ligier while The No. 38 Performance Tech Motorsports Ligier JS P320 of Dan Goldburg was fourth.[25]

The final session of qualifying was for cars in the DPi and LMP2 classes. Ricky Taylor took overall pole for the event driving the No. 10 car for WTR-Konica Minolta Acura, beating Dane Cameron in the No. 60 Meyer Shank Racing Acura by 0.119 seconds. Renger van der Zande's No. 01 Cadillac was third by Kamui Kobayashi in the No. 48 Ally Cadillac Racing, and Pipo Derani's No. 31 Cadillac rounded out the top five.[27] Steven Thomas qualified on pole in LMP2 driving the No. 11 car for WIN Autosport, besting Ben Keating in the No. 52 PR1/Mathiasen Motorsports entry. [28]

Qualifying results

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Pole positions in each class are indicated in bold and by ‡.

Pos. Class No. Team Driver Time Gap Grid
1 DPi 10   WTR-Konica Minolta Acura   Ricky Taylor 1:30.022 _ 1
2 DPi 60   Meyer Shank Racing w/ Curb-Agajanian   Dane Cameron 1:30.141 +0.119 2
3 DPi 01   Cadillac Chip Ganassi Racing   Renger van der Zande 1:30.637 +0.615 3
4 DPi 48   Ally Cadillac Racing   Kamui Kobayashi 1:30.671 +0.649 4
5 DPi 31   Whelen Engineering Racing   Pipo Derani 1:30.824 +0.802 5
6 DPi 55   Mazda Motorsports   Oliver Jarvis 1:31.075 +1.053 71
7 DPi 5   JDC-Mustang Sampling Racing   Tristan Vautier 1:31.324 +1.302 6
8 LMP2 11   WIN Autosport   Steven Thomas 1:35.304 +5.282 8
9 LMP2 52   PR1/Mathiasen Motorsports   Ben Keating 1:35.322 +5.300 122
10 LMP2 18   Era Motorsport   Dwight Merriman 1:38.455 +8.433 9
11 LMP2 8   Tower Motorsport By Starworks   John Farano 1:38.481 +8.459 10
12 LMP2 22   United Autosports   James McGuire 1:39.510 +9.488 11
13 LMP3 2   United Autosports   Austin McCusker 1:40.404 +10.382 13
14 GTLM 3   Corvette Racing   Antonio García 1:40.944 +10.922 20
15 LMP3 36   Andretti Autosport   Jarett Andretti 1:40.974 +10.952 14
16 GTLM 4   Corvette Racing   Tommy Milner 1:41.318 +11.296 21
17 GTLM 25   BMW Team RLL   Connor De Phillippi 1:41.357 +11.335 22
18 LMP3 54   CORE Autosport   George Kurtz 1:41.501 +11.479 15
19 LMP3 38   Performance Tech Motorsports   Dan Goldburg 1:41.798 +11.776 16
20 GTLM 24   BMW Team RLL   John Edwards 1:41.932 +11.910 23
21 LMP3 84   D3+ Transformers-Dawson Racing   Theodor Olsen 1:42.256 +12.234 17
22 GTLM 79   WeatherTech Racing   Cooper MacNeil 1:42.363 +12.341 24
23 LMP3 74   Riley Motorsports   Gar Robinson 1:43.100 +13.078 18
24 LMP3 91   Riley Motorsports   Jim Cox 1:43.263 +13.241 19
25 GTD 14   Vasser Sullivan Racing   Kyle Kirkwood 1:45.539 +15.517 25
26 GTD 16   Wright Motorsports   Trent Hindman 1:45.849 +15.827 26
27 GTD 42   NTE Sport   Jaden Conwright 1:45.853 +15.831 27
28 GTD 28   Alegra Motorsports   Daniel Morad 1:45.997 +15.975 28
29 GTD 96   Turner Motorsport   Robby Foley 1:46.051 +16.029 29
30 GTD 12   Vasser Sullivan Racing   Frankie Montecalvo 1:46.265 +16.243 30
31 GTD 39   CarBahn Motorsports with Peregrine Racing   Tyler McQuarrie 1:46.294 +16.272 31
32 GTD 1   Paul Miller Racing   Corey Lewis 1:46.512 +16.490 373
33 GTD 9   Pfaff Motorsports   Zacharie Robichon 1:46.550 +16.528 32
34 GTD 19   GRT Grasser Racing Team   Misha Goikhberg 1:47.070 +17.048 33
35 GTD 75   SunEnergy1 Racing   Mikaël Grenier 1:47.087 +17.065 34
36 GTD 23   Heart Of Racing Team   Ian James 1:47.500 +17.478 384
37 GTD 88   Team Hardpoint EBM   Rob Ferriol 1:48.563 +18.541 35
38 GTD 44   Magnus Racing with Archangel Motorsports   John Potter 1:48.909 +18.887 36
Sources:[29][30][31][32][33]
  • 1 The No. 55 Mazda Motorsports entry initially qualified sixth for the DPi class. However, the team changed engines after qualifying. By IMSA rules, the entry was moved to the rear of the DPi field on the starting grid.
  • 2 The No. 52 PR1/Mathiasen Motorsports entry was moved to the back of the LMP2 field as per Article 40.1.4 of the Sporting regulations (Change of starting tires).[34]
  • 3 The No. 1 Paul Miller Racing initially qualified eighth for the GTD class. However, the team changed engines after qualifying. By IMSA rules, the entry was moved to the rear of the GTD field on the starting grid.
  • 4 The No. 75 SunEnergy1 Racing entry was moved to the back of the GTD field as per Article 43.5 of the Sporting regulations (Change of starting driver).[34]


Race

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Post-race

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Cameron and Pla advanced from sixth to fourth in the DPi Drivers' Championship. Magnussen and van der Zande dropped fourth to fifth.[35] As a result of winning the race, Merrill, Nunez, and Thomas advanced from fourth to second in the LMP2 Drivers' Championship.[35] With a total of 1090 points, Robinson's victory allowed him to increase his advantage over Bennett and Braun in the LMP3 Drivers' Standings.[35] By finishing third place, De Phillippi, Eng, and Spengler advanced from fifth to third in the GTLM Drivers' Championship. Edwards, Farfus, and Krohn jumped from third to second while MacNeil dropped from second to fifth.[35] With a total of 1296 points, Auberlen and Foley's victory allowed them to increase their advantage over De Angelis and Gunn in the GTD Drivers' Championship. Sellers and Snow advanced from fifth to third while Long dropped from third to fifth.[35] Cadillac, Chevrolet, and BMW continued to top their respective Manufacturers' Championships while WTR-Konica Minolta Acura, PR1/Mathiasen Motorsports, Riley Motorsports, Corvette Racing, and Turner Motorsport kept their respective advantages in the their respective of Teams' Championships with seven rounds remaining in the season.[35]

Race results

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Class winners are denoted in bold and ‡.

Pos Class No. Team Drivers Chassis Laps Time/Retired
Engine
1 DPi 55   Mazda Motorsports   Oliver Jarvis
  Harry Tincknell
  Jonathan Bomarito
Mazda RT24-P 200 6:00:04.522‡
Mazda MZ-2.0T 2.0L Turbo I4
2 DPi 60   Meyer Shank Racing with Curb-Agajanian   Dane Cameron
  Olivier Pla
Acura ARX-05 200 +0.965
Acura AR35TT 3.5L Turbo V6
3 DPi 10   Konica Minolta Acura   Ricky Taylor
  Filipe Albuquerque
  Alexander Rossi
Acura ARX-05 200 +9.392
Acura AR35TT 3.5L Turbo V6
4 DPi 31   Whelen Engineering Racing   Felipe Nasr
  Mike Conway
  Pipo Derani
Cadillac DPi-V.R 200 +18.268
Cadillac 5.5L V8
5[a] DPi 48   Ally Cadillac Racing   Jimmie Johnson
  Kamui Kobayashi
  Simon Pagenaud
Cadillac DPi-V.R 200 +53.216
Cadillac 5.5L V8
6

DNF

DPi 01   Cadillac Chip Ganassi Racing   Renger van der Zande
  Kevin Magnussen
Cadillac DPi-V.R 199 Accident
Cadillac 5.5L V8
7 DPi 5   JDC-Mustang Sampling Racing   Tristan Vautier
  Loïc Duval
  Sébastien Bourdais
Cadillac DPi-V.R 199 +1 Lap
Cadillac 5.5L V8
8 LMP2 11   WIN Autosport   Steven Thomas
  Tristan Nunez
  Thomas Merrill
Oreca 07 196 +4 Laps‡
Gibson 4.2L GK428 V8
9 LMP2 52   PR1/Mathiasen Motorsports   Ben Keating
  Mikkel Jensen
  Scott Huffaker
Oreca 07 196 +4 Laps
Gibson GK428 4.2L V8
10 LMP2 22   United Autosports   James McGuire
  Wayne Boyd
  Guy Smith
Oreca 07 193 +7 Laps
Gibson GK428 4.2L V8
11 GTLM 3   Corvette Racing   Antonio García
  Jordan Taylor
Chevrolet Corvette C8.R 187 +13 Laps‡
Chevrolet 5.5L V8
12 GTLM 24   BMW Team RLL   John Edwards
  Jesse Krohn
  Augusto Farfus
BMW M8 GTE 187 +13 Laps
BMW S63 4.0L Turbo V8
13 GTLM 25   BMW Team RLL   Connor De Phillippi
  Philipp Eng
  Bruno Spengler
BMW M8 GTE 187 +13 Laps
BMW S63 4.0L Turbo V8
14 GTLM 4   Corvette Racing   Tommy Milner
  Nick Tandy
Chevrolet Corvette C8.R 187 +13 Laps
Chevrolet 5.5L V8
15 LMP3 74   Riley Motorsports   Gar Robinson
  Felipe Fraga
  Scott Andrews
Ligier JS P320 186 +14 Laps‡
Nissan VK56DE 5.6L V8
16 LMP3 54   CORE Autosport   Jon Bennett
  George Kurtz
  Colin Braun
Ligier JS P320 186 +14 Laps
Nissan VK56DE 5.6L V8
17 LMP3 91   Riley Motorsports   Jim Cox
  Dylan Murry
  Jeroen Bleekemolen
Ligier JS P320 186 +14 Laps
Nissan VK56DE 5.6L V8
18 LMP3 36   Andretti Autosport   Jarett Andretti
  Oliver Askew
  Marco Andretti
Ligier JS P320 185 +15 Laps
Nissan VK56DE 5.6L V8
19 LMP3 2   United Autosports   Niklas Krütten
  Edouard Cauhaupé
  Austin McCusker
Ligier JS P320 183 +17 Laps
Nissan VK56DE 5.6L V8
20 GTD 96   Turner Motorsport   Bill Auberlen
  Robby Foley
  Aidan Read
BMW M6 GT3 179 +21 Laps‡
BMW 4.4L Turbo V8
21 GTD 1   Paul Miller Racing   Bryan Sellers
  Madison Snow
  Corey Lewis
Lamborghini Huracán GT3 Evo 179 +21 Laps
Lamborghini 5.2L V10
22 GTD 23   Heart of Racing Team   Roman De Angelis
  Ross Gunn
  Ian James
Aston Martin Vantage GT3 179 +21 Laps
Mercedes-Benz M177 4.0 L Turbo V8
23 GTD 42   NTE Sport   Don Yount
  Jaden Conwright
  Markus Palttala
Audi R8 LMS Evo 179 +21 Laps
Audi 5.2L V10
24 GTD 28   Alegra Motorsports   Daniel Morad
  Michael de Quesada
  Billy Johnson
Mercedes-AMG GT3 Evo 179 +21 Laps
Mercedes-AMG M159 6.2L V8
25 GTD 14   Vasser Sullivan Racing   Aaron Telitz
  Jack Hawksworth
  Kyle Kirkwood
Lexus RC F GT3 179 +21 Laps
Lexus 5.0L V8
26 GTD 9   Pfaff Motorsports   Zacharie Robichon
  Laurens Vanthoor
  Lars Kern
Porsche 911 GT3 R 179 +21 Laps
Porsche 4.0L Flat-6
27 GTD 16   Wright Motorsports   Patrick Long
  Trent Hindman
  Jan Heylen
Porsche 911 GT3 R 179 +21 Laps
Porsche 4.0L Flat-6
28 GTD 39   CarBahn Motorsports with Peregrine Racing   Richard Heistand
  Jeff Westphal
  Tyler McQuarrie
Audi R8 LMS Evo 179 +21 Laps
Audi 5.2L V10
29 GTD 88   Team Hardpoint EBM   Andrew Davis
  Rob Ferriol
  Katherine Legge
Porsche 911 GT3 R 179 +21 Laps
Porsche 4.0L Flat-6
30 GTD 12   Vasser Sullivan Racing   Frankie Montecalvo
  Zach Veach
  Robert Megennis
Lexus RC F GT3 179 +21 Laps
Lexus 5.0L V8
31 LMP3 84   D3+ Transformers-Dawson Racing   Theodor Olsen
  Dominic Cicero
  Ben Devlin
Ligier JS P320 178 +22 Laps
Nissan VK56DE 5.6L V8
32 GTD 44   Magnus Racing with Archangel Motorsports   John Potter
  Andy Lally
  Spencer Pumpelly
Acura NSX GT3 Evo 147 +53 Laps
Acura 3.5L Turbo V6
33

DNF

LMP2 8   Tower Motorsport by Starworks   James French
  John Farano
  Gabriel Aubry
Oreca 07 146 Accident
Gibson GK428 4.2L V8
34

DNF

LMP2 18   Era Motorsport   Dwight Merriman
  Kyle Tilley
  Ryan Dalziel
Oreca 07 85 Electrical
Gibson GK428 4.2L V8
35

DNF

GTD 19   GRT Grasser Racing Team   Misha Goikhberg
  Franck Perera
  Tim Zimmermann
Lamborghini Huracán GT3 Evo 73 Accident
Lamborghini 5.2L V10
36

DNF

GTD 75   SunEnergy1 Racing   Maro Engel
  Kenny Habul
  Mikaël Grenier
Mercedes-AMG GT3 Evo 62 Suspension
Mercedes-AMG M159 6.2L V8
37

DNF

LMP3 38   Performance Tech Motorsports   Dan Goldburg
  Mateo Llarena
  Rasmus Lindh
Ligier JS P320 31 Engine
Nissan VK56DE 5.6L V8
38

DNF

GTLM 79   WeatherTech Racing   Cooper MacNeil
  Mathieu Jaminet
  Matt Campbell
Porsche 911 RSR-19 3 Fire
Porsche 4.2L Flat-6
Sources:[36][37]
  1. ^ The #48 Ally Cadillac Racing entry received a 35-second time penalty for failing to serve a drive-through penalty. This demoted the entry from fourth to fifth in class.

Standings after the race

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  • Note: Only the top five positions are included for all sets of standings.
  • Note: Only the top five positions are included for all sets of standings.
  • Note: Only the top five positions are included for all sets of standings.


References

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  1. ^ Pruett, Marshall (September 9, 2020). "IMSA reveals 2021 WeatherTech Championship calendar". racer.com. Retrieved October 8, 2023.
  2. ^ "2021 WeatherTech Championship Schedule Published". dailysportscar.com. September 9, 2020. Retrieved October 8, 2023.
  3. ^ Malsher-Lopez, David (September 9, 2020). "IMSA reveals 2021 schedule, LMP3 to join WeatherTech series". us.motorsport.com. Retrieved October 8, 2023.
  4. ^ "WeatherTech 240 At The Glen Set for Friday, July 2". imsa.com. April 7, 2021. Retrieved July 6, 2021.
  5. ^ "TB-IWSC-21-21-WGI-6hr-BoP-Tables-06182021.pdf" (PDF). imsa.com. June 18, 2021. Retrieved July 7, 2021.
  6. ^ a b c d e f "00_Championship Points - Official.pdf" (PDF). results.imsa.com. June 15, 2021. Retrieved August 26, 2023.
  7. ^ Dagys, John (June 25, 2021). "Watkins Glen Friday Notebook". sportscar365.com. John Dagys Media. Retrieved July 7, 2021.
  8. ^ a b c d "40 Car Entry For 6 Hours Of The Glen". dailysportscar.com. June 17, 2021. Retrieved July 7, 2021.
  9. ^ Allaway, Phil (June 22, 2021). "Entry List: Sahlen's Six Hours at the Glen". frontstretch.com. Retrieved July 7, 2021.
  10. ^ Dagys, John (June 15, 2021). "D3+ Transformers Set for Long-Awaited Debut". sportscar365.com. John Dagys Media. Retrieved July 7, 2021.
  11. ^ Pruett, Marshall (June 21, 2021). "IMSA reveals entry list for Six Hours of The Glen". racer.com. Retrieved July 7, 2021.
  12. ^ a b "2021 IMSA Official Schedule and SR WGI 061621 V1" (PDF). results.imsa.com/noticeBoard.php. Retrieved August 3, 2023.
  13. ^ a b c Kish, Ryan (June 25, 2021). "MSR Acura tops opening practice for Six Hours at The Glen". racer.com. Retrieved October 8, 2023.
  14. ^ Dagys, John (June 25, 2021). "Pla Quickest on Friday at Watkins Glen". sportscar365.com. Retrieved October 8, 2023.
  15. ^ a b Malsher-Lopez, David (June 25, 2021). "Watkins Glen IMSA: Pla puts Meyer Shank Acura on top in FP1". motorsport.com. Retrieved October 8, 2023.
  16. ^ a b c Allaway, Phil (June 26, 2021). "Olivier Pla, Dane Cameron Top Sahlen's Six Hours at the Glen Practice". frontstretch.com. Retrieved October 8, 2023.
  17. ^ "03_Results_Practice 1.PDF" (PDF). results.imsa.com. June 25, 2021. Retrieved August 2, 2023.
  18. ^ "06_Fastest Lap By Driver_Practice 1.PDF" (PDF). results.imsa.com. June 25, 2021. Retrieved August 2, 2023.
  19. ^ Dagys, John (June 26, 2021). "Cameron, Taylor Lead Acura DPi Sweep in Practice 2". sportscar365.com. Retrieved October 8, 2023.
  20. ^ a b Malsher-Lopez, David (June 26, 2021). "Watkins Glen IMSA: Cameron keeps MSR Acura on top in FP2". motorsport.com. Retrieved October 8, 2023.
  21. ^ a b Kish, Ryan (June 26, 2021). "MSR Acura stays fast in second Watkins Glen practice". racer.com. Retrieved October 7, 2023.
  22. ^ "03_Results_Practice 2.PDF" (PDF). results.imsa.com. June 26, 2021. Retrieved August 2, 2023.
  23. ^ "06_Fastest Lap By Driver_Practice 2.PDF" (PDF). results.imsa.com. June 26, 2021. Retrieved August 2, 2023.
  24. ^ Dagys, John (June 26, 2021). "Taylor Leads Acura Front Row Sweep at Watkins Glen". sportscar365.com. Retrieved November 11, 2023.
  25. ^ a b c d Malsher-Lopez, David (June 26, 2021). "Watkins Glen IMSA: Taylor snatches pole, leads Acura 1-2". motorsport.com. Retrieved November 11, 2023.
  26. ^ Allaway, Phil (June 26, 2021). "Ricky Taylor Wins Sahlen's Six Hours at the Glen Pole". frontstretch.com. Retrieved November 11, 2023.
  27. ^ Ryan, Nate (June 26, 2021). "Wayne Taylor Racing Acura on pole in IMSA starting lineup for Six Hours of Watkins Glen". motorsports.nbcsports.com. Retrieved July 7, 2021.
  28. ^ Kish, Ryan (June 26, 2021). "WTR Acura claims Watkins Glen 6 Hours pole". racer.com. Retrieved November 11, 2023.
  29. ^ "03_Results_Qualifying - LMP2-DPi Position - Points.PDF" (PDF). results.imsa.com. June 26, 2021. Retrieved November 11, 2023.
  30. ^ "03_Results_Qualifying - LMP3 Position - Points.PDF" (PDF). results.imsa.com. June 26, 2021. Retrieved November 11, 2023.
  31. ^ "03_Results_Qualifying - GTD Points - GTLM - Position - Points.PDF" (PDF). results.imsa.com. June 26, 2021. Retrieved November 11, 2023.
  32. ^ "03_Results_Qualifying - GTD Position.PDF" (PDF). results.imsa.com. June 26, 2021. Retrieved November 11, 2023.
  33. ^ "00_Grid_Race_Official.PDF" (PDF). results.imsa.com. June 27, 2021. Retrieved August 26, 2023.
  34. ^ a b "2021-IMSA-SPORTING-REGULATIONS-and-SSR-IWSC-Blackline-082621-V1.pdf" (PDF). Archived (PDF) from the original on 2023-11-11. Retrieved November 11, 2023.
  35. ^ a b c d e f g h i j k l m n o p q r s "00_Championship Points - Official.pdf" (PDF). results.imsa.com. June 29, 2021. Retrieved August 26, 2023.
  36. ^ "03_Results_Race_Official.PDF" (PDF). June 2021. Retrieved July 8, 2021.
  37. ^ "2021 SAHLEN'S SIX HOURS OF THE GLEN". racing-reference.info. Retrieved August 26, 2023.
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