The 2023 Michelin Pilot Challenge was the twenty-fourth season of the IMSA SportsCar Challenge and the tenth season organized by the International Motor Sports Association (IMSA). The season began on January 26 at Daytona International Speedway and concludes on October 14 at Road Atlanta.

Classes Grand Sport (GS) (run to GT4 regulations) Touring Car (TCR)

Calendar The provisional 2023 calendar was released on August 5, 2022, at IMSA's annual State of the Sport Address, featuring eleven rounds. Round Race Length Classes Circuit Location Date 1 BMW M Endurance Challenge 4 Hours All Daytona International Speedway Daytona Beach, Florida January 26–29 2 Alan Jay Automotive Network 120 2 Hours All Sebring International Raceway Sebring, Florida March 15–18 3 WeatherTech Raceway Laguna Seca 120 2 Hours All WeatherTech Raceway Laguna Seca Monterey, California May 12–14 4 Chevrolet Detroit Sports Car Classic 1 Hour 40 Minutes GS Detroit Street Circuit Detroit, Michigan June 2–3 5 Watkins Glen International 120 2 Hours All Watkins Glen International Watkins Glen, New York June 23–25 6 Canadian Tire Motorsport Park 120 2 Hours All Canadian Tire Motorsport Park Bowmanville, Ontario July 7–9 7 Lime Rock Park 120 1 Hour 40 Minutes TCR Lime Rock Park Lakeville, Connecticut July 21–22 8 Road America 120 2 Hours All Road America Elkhart Lake, Wisconsin August 4–6 9 Virginia Is Racing for Lovers Grand Prix 2 Hours All Virginia International Raceway Alton, Virginia August 25–27 10 Indianapolis Motor Speedway 240 4 Hours All Indianapolis Motor Speedway Speedway, Indiana September 15–17 11 Fox Factory 120 2 Hours All Michelin Raceway Road Atlanta Braselton, Georgia October 11–14 Calendar Changes Mid-Ohio Sports Car Course was dropped from the calendar and was replaced by a four-hour event at Indianapolis Motor Speedway. An event at the new Detroit Street Circuit was also added to the schedule. The Detroit event will only feature GS-class entries, while the event at Lime Rock Park will only feature TCR entries, ensuring a 10-round schedule for both classes.

Entry list Grand Sport (GS) Team Car Engine Drivers Rounds Automatic Racing AMR Aston Martin Vantage AMR GT4 Aston Martin 4.0 L Turbo V8 09 Ramin Abdolvahabi 1, 5, 8 Rob Ecklin 1, 5, 8 9 Jim Jonsin 1 Tom Long 1 Brett Sandberg 1 Ave Motorsports Mercedes-AMG GT4 Mercedes-AMG M178 4.0 L V8 4 Tony Ave 6 George Staikos 6 TGR Ave Motorsports Toyota GR Supra GT4 Evo BMW B58B30 3.0 L Twin-Turbo I6 14 Alfredo Najri 1–6, 9–11 Thiago Camilo 1–5, 11 Damian Fineschi 1 Diego Azar 8 Marco Galanti 8 Julian Santero 9 Fernando Etchegorry 10 Thomas Steuer 10 Wilsports Mercedes-AMG GT4 Mercedes-AMG M178 4.0 L V8 11 Gary Ferrera 1–3, 6, 9, 11 Kris Wilson 1–3, 6, 9, 11 McCumbee McAleer Racing with Aerosport Ford Mustang GT4 Ford 5.2 L Voodoo V8 13 Jenson Altzman 1–6, 8–11 Chad McCumbee 1–3, 5–6, 8, 10–11 Joey Hand 4, 9 van der Steur Racing Aston Martin Vantage AMR GT4 Aston Martin 4.0 L Turbo V8 19 Austin McCusker 1–6, 8–11 Rory van der Steur 1–6, 8–11 Wyatt Brichacek 1 Valentin Hasse-Clot 10 Rearden Racing Porsche 718 Cayman GT4 RS Clubsport Porsche 4.0 L Flat-6 21 Vesko Kozarov 10 Jake Pedersen 10 JTR Motorsports Engineering Mercedes-AMG GT4 Mercedes-AMG M178 4.0 L V8 23 Anthony McIntosh 1–2 Jared Thomas 1–2 Auto Technic Racing BMW M4 GT4 Gen II BMW 3.0 L Twin-Turbo I6 25 JCD Dubets 1–2 Rob Walker 1 Bill Auberlen 2 Fast Track Racing BMW M4 GT4 Gen II BMW 3.0 L Twin-Turbo I6 26 Garrett Adams 1–2, 8–10 Toby Grahovec 1–2, 8–10 Neil Verhagen 1, 10 Lone Star Racing Mercedes-AMG GT4 Mercedes-AMG M178 4.0 L V8 27 Scott Andrews 1–6, 8–11 Anton Dias Perera 1–6, 8–11 RS1 Porsche 718 Cayman GT4 RS Clubsport Porsche 4.0 L Flat-6 28 Eric Filgueiras 1–6, 8–11 Stevan McAleer 1–6, 8–11 TR3 Racing Aston Martin Vantage AMR GT4 Aston Martin 4.0 L Turbo V8 29 Jonathan Branam 1 John Potter 1 GMG Racing Porsche 718 Cayman GT4 RS Clubsport Porsche 4.0 L Flat-6 32 Jeroen Bleekemolen 10 Kyle Washington 10 CarBahn with Peregrine Racing Porsche 718 Cayman GT4 RS Clubsport BMW M4 GT4 Porsche 4.0 L Flat-6 BMW N55 3.0 L Twin-Turbo I6 39 Sean McAlister 1–6, 8–11 Jeff Westphal 1–6, 8–11 Nolan Siegel 1–6, 8–11 Porsche 718 Cayman GT4 RS Clubsport Porsche 4.0 L Flat-6 93 Brady Golan 10 Cameron Shields 10 PF Racing Ford Mustang GT4 Ford 5.2 L Voodoo V8 41 Hailie Deegan 1 Ben Rhodes 1 42 Harrison Burton 1 Zane Smith1 Stephen Cameron Racing BMW M4 GT4 BMW N55 3.0 L Twin-Turbo I6 43 Greg Liefooghe 1–6, 8–11 Sean Quinlan 1–6, 8–11 77 Nick Shaeffer 10–11 Peter Mercier 10–11 Accelerating Performance Aston Martin Vantage AMR GT4 Porsche 718 Cayman GT4 RS Clubsport Aston Martin 4.0 L Turbo V8 Porsche 4.0 L Flat-6 44 Michael Cooper 1–4, 6, 8–11 Moisey Uretsky 1–4, 6, 9–11 Justin Piscitell 1 Patrick Gallagher 8 Team TGM Aston Martin Vantage AMR GT4 Aston Martin 4.0 L Turbo V8 46 Hugh Plumb 1–6, 8–11 Matt Plumb 1–6, 8–11 64 Ted Giovanis 1–6, 8–11 Owen Trinkler 1–6, 8–11 NOLASPORT Porsche 718 Cayman GT4 RS Clubsport Porsche 4.0 L Flat-6 47 Adam Adelson 1–6, 8–11 Elliott Skeer 1–6, 8–11 TGR Hattori Motorsports Toyota GR Supra GT4 Evo BMW B58B30 3.0 L Twin-Turbo I6 50 Billy Johnson 6, 11 Parker Thompson 6 Seth Lucas 11 Murillo Racing Mercedes-AMG GT4 Mercedes-AMG M178 4.0 L V8 56 Eric Foss 1–6, 8–9, 11 Jeff Mosing 1–6 Ryan Yardley 8 Justin Piscitell 9 Charles Espenlaub 11 72 Kenny Murillo 1–6, 8–11 Christian Szymczak 1–6, 8–11 Winward Racing Mercedes-AMG GT4 Mercedes-AMG M178 4.0 L V8 57 Daniel Morad 1–6, 8–11 Bryce Ward 1–6, 8–11 Crucial Motorsports McLaren Artura GT4 McLaren M630 3.0  L Turbo V6 58 Michael de Quesada 1–2 Aurora Straus 1–2 Henry O'Hara 1 85 Eric Zitza 2 Ron Zitza 2 KohR Motorsports Ford Mustang GT4 Ford 5.2 L Voodoo V8 59 Luca Mars 1–6, 8–11 Bob Michaelian 1–6, 8–11 Motorsport in Action McLaren Artura GT4 McLaren M630 3.0  L Turbo V6 69 Alex Filsinger 1–6, 8–11 Jesse Lazare 1–6, 8–11 Rebel Rock Racing Chevrolet Camaro GT4.R Chevrolet LT1 6.2 L V8 71 Frank DePew 1–6, 8–11 Robin Liddell 1–6, 8–11 Andrew Davis 1, 10 Thaze Competition Mercedes-AMG GT4 Mercedes-AMG M178 4.0 L V8 78 Michael Di Meo 4, 6 Marc Miller 4, 6 NV Autosport Ford Mustang GT4 Ford 5.2 L Voodoo V8 79 Drew Neubauer 1, 5, 10 Stephen Vajda 1, 5, 10 BGB Motorsports Porsche 718 Cayman GT4 RS Clubsport Porsche 4.0 L Flat-6 83 Thomas Collingwood 1–6, 8–11 Spencer Pumpelly 1–6, 8–11 Jeroen Bleekemolen 1 John Tecce 10 Archangel Motorsports Aston Martin Vantage AMR GT4 Aston Martin 4.0 L Turbo V8 88 Todd Coleman 1, 3–6, 8–10 Conrad Grunewald 1 Patrick Lindsey 3–4 Billy Johnson 5, 8–10 Kyle Marcelli 6 Random Vandals RacingBMW M4 GT4 Gen II BMW 3.0 L Twin-Turbo I6 92 Kenton Koch 2, 8–11 Paul Sparta 2, 8–11 Turner Motorsport BMW M4 GT4 Gen II BMW 3.0 L Twin-Turbo I6 95 Cameron Lawrence 1–6, 8–11 Robert Megennis 1–6, 8–11 96 Vincent Barletta 1–6, 8–11 Robby Foley 1–6, 8–11 Jens Klingmann 1 Sources:

Touring Car (TCR) Team Car Drivers Rounds Bryan Herta Autosport with Curb-Agajanian Hyundai Elantra N TCR 1 Taylor Hagler 1–3, 5–11 Michael Lewis 1–3, 5–10 Bryson Morris 11 33 Harry Gottsacker 1–3, 5–11 Robert Wickens 1–3, 5–11 98 Mason Filippi 1–3, 5–11 Mark Wilkins 1–3, 5–11 KMW Motorsports with TMR Engineering Alfa Romeo Giulietta Veloce TCR 5 Roy Block 1–3, 5–11 Tim Lewis Jr. 1–3, 5–11 Rockwell Autosport Development Audi RS3 LMS TCR (2017) 10 Preston Brown 1–3, 5–11 Alex Rockwell 1, 6–11 Tom O'Gorman 1 Eric Rockwell 2–3, 5 Jeronimo Guzman 10 15 Denis Dupont 1–3, 5–11 Nick Looijmans 1–3, 5, 9–11 Eric Rockwell 1, 6–8, 10 Unitronic/JDC-Miller MotorSports Audi RS 3 LMS TCR (2021) 17 Chris Miller 1–3, 5–11 Mikey Taylor 1–3, 5–11 LA Honda World Racing Honda Civic Type R TCR (FK8) 7 Mat Pombo 11 William Tally 11 Honda Civic Type R TCR (FK8) Honda Civic Type R TCR (FL5) 37 Ryan Eversley 1–3, 5–9 Mat Pombo 1–3, 5–7 Mike LaMarra 8–9 Honda Civic Type R TCR (FK8) Honda Civic Type R TCR (FL5) 73 William Tally 1–3, 5–9 Mike LaMarra 1–3, 5–7, 11 Mat Pombo 8–9 Ryan Eversley 11 Gou Racing Audi RS3 LMS TCR (2017) 55 Eddie Gou 10 Lalo Gou 10 Road Shagger Racing Audi RS3 LMS TCR (2017) 61 Gavin Ernstone 1–2, 5, 10 Jonathan Morley 1–2, 5, 10 Deily Motorsports Hyundai Elantra N TCR 70 Jacob Deily 1–3, 7–11 Tyler Maxson 1 Cabot Bigham 2–3 Robert Megennis 7 Sally McNulty 8–11 74 Cabot Bigham 1, 7–11 Matt Jaskol 1 Nate Stacy 2 James Vance 2–3 Jordan Wisely 3, 7–11 HART Honda Civic Type R TCR (FK8) 89 Steve Eich 1–2, 5, 8, 10 Chad Gilsinger 1–2, 5, 8, 10 Mario Farnbacher 1 Tyler Chambers 10 van der Steur Racing Hyundai Veloster N TCR 90 Rory van der Steur 7 Luca Mars 7 Hyundai Elantra N TCR 91 Tyler Maxson 2–3, 5–11 Bryan Ortiz 2–3, 5–11 Victor Gonzalez Racing Team Honda Civic Type R TCR (FK8) Hyundai Elantra N TCR 99 Victor Gonzalez 1–3, 5–11 Karl Wittmer 1–3, 5–7 Cristian Perocarpi 8 Tyler Gonzalez 9–11 Sources:

Race results Bold indicates overall winner. Round Circuit GS Winning Car TCR Winning Car GS Winning Drivers TCR Winning Drivers 1 Daytona #42 PF Racing #61 Road Shagger Racing Harrison Burton Zane Smith Gavin Ernstone Jonathan Morley 2 Sebring #96 Turner Motorsport #5 KMW Motorsports with TMR Engineering Vincent Barletta Robby Foley Roy Block Tim Lewis Jr. 3 Laguna Seca #72 Murillo Racing #98 Bryan Herta Autosport with Curb-Agajanian Kenny Murillo Christian Szymczak Mason Filippi Mark Wilkins 4 Detroit #57 Winward Racingdid not participate Daniel Morad Bryce Ward 5 Watkins Glen #96 Turner Motorsport #5 KMW Motorsports with TMR Engineering Robby Foley Vincent Barletta Roy Block Tim Lewis Jr. 6 Mosport #50 TGR Hattori Motorsports #17 Unitronic/JDC-Miller MotorSports Billy Johnson Parker Thompson Chris Miller Mikey Taylor 7 Lime Rockdid not participate #98 Bryan Herta Autosport with Curb-Agajanian Mason Filippi Mark Wilkins 8 Road America #71 Rebel Rock Racing #5 KMW Motorsports with TMR Engineering Frank DePew Robin Liddell Roy Block Tim Lewis Jr. 9 Virginia #71 Rebel Rock Racing #17 Unitronic/JDC-Miller MotorSports Frank DePew Robin Liddell Chris Miller Mikey Taylor 10 Indianapolis #57 Winward Racing #17 Unitronic/JDC-Miller MotorSports Daniel Morad Bryce Ward Chris Miller Mikey Taylor 11 Road Atlanta #69 Motorsport in Action #98 Bryan Herta Autosport with Curb-Agajanian Alex Filsinger Jesse Lazare Mason Filippi Mark Wilkins

Championship standings Points system Championship points are awarded in each class at the finish of each event. Points are awarded based on finishing positions in the race as shown in the chart below.2023 IMSA Sporting Regulations (and SSR) for the IMPC 05/03/23

Position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30+ Race 350 320 300 280 260 250 240 230 220 210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10

GS Driver's Championship