STAMFORD, Conn. – Sept. 17, 2025 – NBC Sports’ big weekend of live motorsports action is headlined by three major events: NASCAR Cup Series opening Round of 12 race from New Hampshire Motor Speedway at 2 p.m. ET on USA Network; the SuperMotocross World Championship Finals this Saturday from The Strip at Las Vegas Motor Speedway live on USA Network and Peacock at 10 p.m. ET; and IMSA’s TireRack.com Battle on the Bricks from Indianapolis Motor Speedway on Sunday on Peacock at 11:30 a.m. ET before transitioning to NBC and Peacock at 3 p.m. ET.
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Foundation Laid for Brickyard Grid and More 2026 IMSA Entries
Entry List Notebook – IMSA TireRack.com Battle On The Bricks
Full WeatherTech Championship Field of 53 Cars Set for Six Hours in Indianapolis
By Tony DiZinno

Entry List (Click Here)
DAYTONA BEACH, Fla. – Two races remain in the 2025 IMSA WeatherTech SportsCar Championship season, and they’re also both part of the five-race IMSA Michelin Endurance Cup. The first six hours of the 16 remaining hours of racing come with the second endurance edition of the TireRack.com Battle on the Bricks from the iconic Indianapolis Motor Speedway.
With all four WeatherTech Championship classes back in action, the grid expands to 53 cars, split into 12 Grand Touring Prototype (GTP) cars, 12 Le Mans Prototype 2 (LMP2) cars, 11 Grand Touring Daytona Pro (GTD PRO) cars and 18 Grand Touring Daytona (GTD) cars.
Corvette Conquers VIR’s GT-Heavy IMSA Weekend

Three Takeaways: IMSA Michelin GT Challenge at VIR (By David Phillips)
DAYTONA BEACH, Fla. – Each and every season the Michelin GT Challenge at VIRginia International Raceway is the chance for the IMSA WeatherTech SportsCar Championship’s Grand Touring Daytona Pro (GTD PRO) and Grand Touring Daytona (GTD) competitors to strut their stuff in the spotlight. They seldom disappoint, and this year was no exception.
Not only were the identities of the victors in both categories in some doubt right up until the checkered flag, so were the identities of the rest of the podium finishers. The top three in GTD PRO were covered by five seconds while the GTD podium was blanketed by 2.7 seconds.
IMSA GT Showcase Heads to VIR

DAYTONA BEACH, Fla. – Since its rebirth in Y2K, VIRginia International Raceway has set the standard for amenities for spectators and competitors alike. Fans enjoy wandering the meticulously groomed lawns of the 3.27-mile, 17-turn facility, with countless A+ viewpoints, virtually unlimited access to the paddock and garage area, and some of the best track food this side of the Circuit de la Sarthe … why there’s even a tavern and restaurant on site. Competitors embrace the challenges of some of the most demanding and iconic sections of racetrack in North America with names like Horse Shoe, NASCAR Bend, Left Hook, Snake, the Climbing Esses, Oak Tree Curve, Roller Coaster and Hog Pen.
IMSA Insider #612: New Drivers, Cars and Entries to Watch For Rest of 2025, Early 2026
IMSA Insider – BMW Doubles Down at Road America
IMSA: Forte’s Good Karma; “Spike” Stays Hot; BMW’s Double Win
DAYTONA BEACH, Fla. – If the 2026 IMSA WeatherTech SportsCar Championship’s new six-hour endurance race at Road America delivers half the action, entertainment and plot twists of yesterday’s two-hour, 40-minute sprint race, a bevy of spectators and television viewers will have gotten their money’s worth.
The phrase “argy bargy” was on display with more car-to-car contact than you’ll see in a month of Saturday nights at your local short track. But there were some popular podium finishers, championship shakeups aplenty and some emotional victors in the Motul SportsCar Grand Prix.
IMSA Insider: See What’s Brewing at Packed Road America IMSA Weekend
DAYTONA BEACH, Fla. – The IMSA WeatherTech SportsCar Championship’s annual midsummer tour of North America’s iconic road courses continues with a trip to Road America for the Motul SportsCar Grand Prix. Opened in 1955 and celebrating its 70th anniversary in 2025, the 14-turn, 4.048-mile circuit’s basic layout has had minimal design changes albeit several surface changes.
Set an hour north of Milwaukee in Elkhart Lake, Wis., the track has rightly earned the nickname “America’s National Park of Speed.” It’s an apt moniker, one that pays homage to the bucolic nature of the facility’s park-like 640 acres along with the breathtaking character of a track where some of the world’s fastest race cars may top 175 mph three times each lap.
IMSA Insider #609: The Road Ahead: Road America Field Revealed
DAYTONA BEACH, Fla. – The lone IMSA WeatherTech SportsCar Championship sprint race featuring all four classes kicks off the stretch run to the finish of the final four race weekends of 2025. The freshly renamed Motul SportsCar Grand Prix at Road America marks the last time, for now, this race runs at the standard length two-hour, 40-minute duration before increasing to six hours in 2026.
The combination of four championship battles all under 100 points, intense racing, fun family atmosphere and great food and beverage options highlight the annual trip to the track frequently known as “America’s National Park of Speed.”
Tristan McKee Tabbed To Pilot Spire Motorsports ARCA Menards Series Entry For Two Races
- Late-Model and Road-Racing Standout to Make Series Debut at Watkins Glen
MOORESVILLE, N.C. (July 24, 2025) – Tristan McKee, the inaugural signee of Spire Motorsports’ driver development program, will make a pair of ARCA Menards Series starts in 2025 behind the wheel of the team’s No. 77 Gainbridge Chevrolet SS.
Five days after turning 15-years-old, the minimum age requirement to compete in an ARCA Menards Series national event, McKee will make his debut at Watkins Glen (N.Y.) International in the August 8 General Tire 100 at the Glen. He will return to the Gainbridge Chevy in November for the ARCA Menards Series West season finale at Phoenix Raceway.
IMSA Insider #607 – Dragons Slay CTMP; Lamborghini Launches New GT3 Car
Three Takeaways: IMSA Chevrolet Grand Prix at Canadian Tire Motorsport Park
Analytics Rule; Three First-Timers; A Man For All Seasons (and Classes)
By David Phillips
DAYTONA BEACH, Fla. – IMSA’s lightning-fast, exotic Grand Touring Prototype (GTP) entries from Acura, Aston Martin, BMW, Cadillac, Lamborghini and Porsche bring unquestioned prestige, high-tech, speed and glamour to the WeatherTech SportsCar Championship.
But as Sunday’s Chevrolet Grand Prix at Canadian Tire Motorsport Park demonstrated, the WeatherTech Championship’s other three classes of Le Mans Prototype 2 (LMP2), Grand Touring Daytona Pro (GTD PRO) and Grand Touring Daytona (GTD) can put on one heckuva show when left to their own devices.
