The 2025 IMSA schedule is in full swing. The 24 Hours of Daytona has come and gone, and the 12 Hours of Sebring is almost upon us. Here is a breakdown of the 2025 IMSA schedule from Sebring on.
The Porshe Penske Motorsport No. 7 won the 2025 Rolex 24 at Daytona. They also won the 2024 IMSA WeatherTech SportsCar Championship.
Post Daytona, IMSA has 10 races left on the schedule. All IMSA races are available to stream on Peacock in the United States. Support series races and qualifying are also on Peacock.
The Schedule
24 Hours of Daytona was on Jan. 25th.
Saturday, March 15th: 12 Hours of Sebring begins at 10:00 a.m. Eastern.
The race is held at the Sebring International Raceway, which is 3.74 miles long and features 17 corners.
Saturday, April 12th: Acura Grand Prix of Long Beach begins at 5:00 p.m. Eastern.
IMSA will tackle the 100-minute, 1.97-mile, 11-corner street circuit of the Acura Grand Prix of Long Beach
This race will only feature the GTPs and GTDs.
Sunday, May 11th: IMSA WeatherTech SportsCar Championship of Monterey at 3:00 p.m. Eastern.
The LMP2s will not participate in this race.
The course is 2.2 miles long and has 11 corners
two-hour, 40-minute race
Saturday, May 31st: Chevrolet Detroit Sports Car Classic at 3:30 p.m. Eastern.
This race only includes the GTP and GTD Pro cars.
The course is a 1.7-mile, 9-corner street circuit.
Sunday, June 22nd: Sahlen’s Six Hours of The Glen at 12:00 p.m. Eastern.
It features 11 corners throughout its 3.4 miles
Sunday, July 13th: Chevrolet Grand Prix at the Canadian Tire Motorsport Park at 2:00 p.m. Eastern
Every class except the GTPs will go North of the border for this race
The Canadian track is 2.5 miles long and has 10 corners. The race is two-hour, 40-minute
Sunday, August 3rd: IMSA SportsCar Weekend at Road America at 2:00 p.m. Eastern.
The race is two hours, 40 minutes long, and will take place around the 4-mile, 14-corner course
Sunday, August 24th: Michelin GT Challenge at VIR at 2:00 p.m. Eastern.
The course is 3.3 miles with 18 corners. The race is a two-hour, 40-minute event
The race will only feature GTD Pro and GTD cars
Sunday, September 21st: Indianapolis Motor Speedway begins at 11:30 a.m. Eastern
NASCAR fans are definitely familiar with the 2.4-mile, 14-corner road course at IMS, where the six-hour race takes place.
Saturday, October 11th: Motul Petit Le Mans. The grand finale is at 12:00 p.m. Eastern.
The 10-hour race on Michelin Raceway Road Atlanta features 2.5 miles of track and 12 corners.
The 2026 NASCAR Craftsman Truck Series season opener at Daytona drew nearly 1.4 million viewers on FS1, beating the 2025 opening race number by 37%, and becoming the most-viewed Truck Series event since 2016.
🚨 Big trucks, big numbers! Friday’s NASCAR Craftsman Truck Series season opener on FS1 from Daytona drove a +37% average viewership increase over 2025 (1,387,000 viewers vs. 1,014,000)! 🚀
With 1,387,000 viewers, it’s up 37% compared directly to the same race last year, which had 1,014,000 total
The race averaged 1,387,000 viewers on FS1, the highest for a Truck Series race since 2016, according to FOX Sports.
This race’s entry list included big names like Cleetus McFarland, Tony Stewart, and Travis Pastrana, which very likely contributed to the big skyrocket in viewership, despite both Stewart and McFarland being out early.
Viewership peaked at approximately 1.6 million viewers during the closing portion of the race, despite McFarland and Stewart being already out.
NASCAR’s secondary series is facing a huge brand change, leaving the title name “Xfinity Series” to become the brand-new O’Reilly Auto Parts Series. What is not changing, however, is its broadcast partner. The CW is headed for its 2nd season with the series, and has been investing heavily in it. Year after year, we put up the rating numbers and rank them accordingly in comparison to the previous season. Here’s how it works:
We will directly compare each race’s viewership from 2025 to that race’s (or closest comparable race’s) 2026 viewership. We will also keep a tally of how each race weekend fared compared to the same weekend last season.
This can be confusing, as the “2026 Season as a Whole” section compares races not directly to themselves, but to their corresponding 2025 race weekends. For example, in that section, the 3rd race of the year is compared to 2025’s 3rd race of the season, regardless of the race track.
If necessary, we will also address any potential dips in ratings, such as weather delays, postponements, or debuting races, like San Diego taking over for the Mexico City race
The 2026 O’Reilly Series Season as a Whole
All Races (1 Total in 2026)
2026 Total/Average Viewership to Date: (Available Data From 1 race)*: 1.812 Million/1.812 Million Per Race
2025 Total/Average Viewership to Date (Available Data From 33 Races): 1.825 Million/1.825 Million Per Race
Total Viewership Difference (2026 vs 2025): –0.013 Million (-0.717%)
Average Viewership Difference (2026 vs 2025): -0.013 Million (-0.717%)
.@TheCW got 1.812 million viewers for Saturday's NASCAR O'Reilly Auto Parts Series race at Daytona, flat from last year, per Nielsen's panel and big data figures.
➡️ The race drew 340,000 viewers in the adults 18-49 demographic, the best for an event in that series since 2018. pic.twitter.com/JbyV4L0s0I
It wouldn’t be Daytona without some weird, wacky, and headline-grabbing fallout. From viral Victory Lane moments to renewed debates about driver approval, NASCAR’s biggest race once again delivered more than just on-track drama. And with Michael Jordan celebrating a Daytona 500 win, the spotlight burned brighter than it has in years.
Did Michael Jordan’s raw, emotional Victory Lane reaction create the most mainstream positive buzz NASCAR has seen since 2020?
Why did one viral clip take on a life of its own, even after Tyler Reddick addressed it publicly?
Has the Natalie Decker crash reignited serious concerns about NASCAR’s driver approval process?
And where should the line be drawn between marketing power, opportunity, and competitive fairness?
Jordan’s presence mattered. When the most iconic athlete of a generation shows genuine emotion upon winning the Daytona 500, it reminds the wider sports world that this race still matters. That kind of authentic publicity cannot be manufactured. It resonated far beyond the garage. Meanwhile, the O’Reilly Series race added fuel to another ongoing debate. The massive Decker crash, Cleetus McFarland’s Truck debut incident, and past approval inconsistencies have once again raised tough questions. Consistency, transparency, and accountability are now front and center. Add in Austin Hill’s dominance and Ryan Ellis’ career-best sixth-place run to open the season, and Daytona gave fans plenty to talk about on and off the track.