2023 Twelve Hours of Sebring: Schedule, TV information, streaming, start times, more


Sebring start times, TV schedule: The cars and stars of the world’s two biggest sports cars series return this week at venerable Sebring International Raceway.

The 71st running of the Mobil 1 Twelve Hours of Sebring will cap a week of jam-packed track activity at the road course in central Florida. Sebring will play host to the World Endurance Championship and the IMSA WeatherTech SportsCar Championship.

The WEC season opener will be held Friday from noon to 8 p.m. ET with the FIA WEC 1,000 Miles of Sebring. The next day, Sebring will hold its annual 12-hour classic. The second round of the IMSA season will mark the track debut of the GTP premier category for hybrid prototypes.

The Rolex 24 at Daytona season opener was won for the second consecutive year by Meyer Shank Racing, which will enter Sebring after a massive penalty for manipulating its tire pressure information.

Last year, the No. 02 Cadillac Racing V.R won the premier DPi class in the Twelve Hours of Sebring. That Chip Ganassi Racing-fielded entry (with drivers Earl Bamber, Richard Westbrook and Alex Lynn) will be competing Friday in the hypercar category of the WEC opener — the first of seven WEC rounds for the No. 2 Cadillac V-Series.R, including the 100th 24 Hours of Le Mans in June.

The team, which finished fourth in the 2023 Rolex 24 at Daytona,  competed at Sebring last weekend in the Prologue, which featured four free practice sessions totaling more than 12 hours on the 3.741-mile, 17-turn track.

“It’s great to back at Sebring, where Cadillac has had a lot of success including our win last year,” Bamber said in a release. “Now we’re here with a different challenge with a new Cadillac V-Series.R and looking forward to it. The Prologue went well. We were at or near the top of the chart every session – doing long runs, learning the tires and getting in full race preparation mode because there are short practice sessions when we roll back out Wednesday and it’s right into the race. Brand new team in terms of we did Daytona but now this a WEC team with a European-based crew, so we’re all learning. Looking forward to the race.”

Said Westbrook: “It’s a whole new program, the WEC, and it feels like it. But what a start we’ve made and there is so much more to come. The whole team is just going to get stronger and stronger and I think everyone is excited. The Cadillac is really strong, but we knew that from Daytona, so we have a nice base to work with. There’s a lot to be positive about going into the race week.”

Here are the details for the 71st running of the IMSA Mobil 1 Twelve Hours of Sebring at Sebring International Raceway (all times are ET):

2023 IMSA Twelve Hours of Sebring at Sebring International Raceway

WHEN: Saturday, March 18, 10:10 a.m.

DISTANCE: A 12-hour race on the 17-turn, 3.74-mile course in Sebring, Florida.

FORECAST: According to Wunderground.com, it’s expected to be 72 degrees with a 67% chance of rain at the green flag.

ENTRY LIST: Click here to see the field for the 2023 Mobil 1 Twelve Hours of Sebring

PRACTICE: Session I l Session II l Session III l Session IV l Warmup

STARTING LINEUP: Click here for how the field will line up Saturday


TV: The Twelve Hours of Sebring will be streamed across the NBC Sports AppNBCSports.com and Peacock, which will have coverage of the event from flag to flag beginning at 10 a.m. on March 19. USA Network also will have coverage of the race from 4:30-10:30 p.m.

NBC Sports will have nine of its IMSA and IndyCar commentators, analysts and reporters on site at Sebring, including its lead IMSA commentating team of play-by-play voice Leigh Diffey with analysts Calvin Fish and Townsend Bell.

Kevin Lee, Dillon Welch, Hannah Newhouse, and Matt Yocum will serve as pit reporters. Brian Till (analyst) and Dave Burns (play-by-play) also will serve as commentators.

RADIO: All sessions live on IMSA.com and RadioLeMans.com; SiriusXM live race coverage begins March 19 at 9:45 a.m. (Sirius channel 216, XM 207, Web/App 992)


Here’s a rundown of everything happening this week at Sebring International Raceway (all times are ET):


8:55-9:25 a.m. ET: Porsche Carrera Cup, Practice No. 1

9:40-10:40 a.m.: Michelin Pilot Challenge, Practice No. 1

10:55 a.m.-11:55 a.m.: FIA World Endurance Championship, Free Practice No. 1

12:10 p.m.-12:50 p.m.: Porsche Carrera Cup, Practice No. 2

1:05-2:05 p.m.: Michelin Pilot Challenge, Practice No. 2

3:05-3:35 p.m.: Porsche Carrera Cup, Qualifying

3:50-4:25 p.m.: Michelin Pilot Challenge, Qualifying

4:35-5:35 p.m.: FIA WEC, Free Practice No. 2


9:15-9:55 a.m.: Porsche Carrera Cup, Race No. 1

10:10-11:40 a.m.: IMSA WeatherTech SportsCar Championship, Practice No. 1

11:55 a.m.-12:55 p.m.: FIA WEC, Free Practice No. 3

1:20-3:20 p.m.: Alan Jay 120 Michelin Pilot Challenge race

3:50-5:20 p.m.: IMSA WeatherTech SportsCar Championship, Practice No. 2

5:35-6:15 p.m.: Porsche Carrera Cup, Race No. 2

6:30-7:35 p.m.: FIA WEC, Qualifying

7:45-9:15 p.m.: IMSA WeatherTech SportsCar Championship, Practice No. 3


8:55-9:05 a.m.: IMSA WeatherTech SportsCar Championship, Practice No. 4

9:15-10:25 a.m.: IMSA WeatherTech SportsCar Championship, Qualifying

Noon-8 p.m.: FIA WEC 1000 Miles of Sebring


8-8:20 a.m.: IMSA WeatherTech SportsCar Championship, warmup

10:10 a.m.: IMSA WeatherTech SportsCar Championship, 70th Mobil 1 Twelve Hours Of Sebring


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SuperMotocross set to introduce Leader Lights beginning with the World Championship finals


In a continuing effort to help fans keep track of the on track action, SuperMotocross is in the process of developing and implementing leader lights for the unified series.

Currently Supercross (SMX) utilizes stanchions in the infield that are triggered manually by a race official. At least two stanchions are used in each race as a way to draw the eye to the leader, which is especially useful in the tight confines of the stadium series when lapping often begins before the halfway mark in the 22-bike field. This system has been in place for the past two decades.

Later this year, a fully automated system will move to the bike itself to replace the old system. At that point, fans will be able to identify the leader regardless of where he is on track.

The leader lights were tested in the second Anaheim round this year. An example can be seen at the 1:45 mark in the video above on the No. 69 bike.

“What we don’t want to do is move too fast, where it’s confusing to people,” said Mike Muye, senior director of operations for Supercross and SMX in a press release. “We’ve really just focused on the leader at this point with the thought that maybe down the road we’ll introduce others.”

Scheduled to debut with the first SuperMotocross World Championship race at zMax Dragway, located just outside the Charlotte Motor Speedway, a 3D carbon fiber-printed LED light will be affixed to each motorcycle. Ten timing loops positioned around the track will trigger the lights of the leader, which will turn green.

SMX’s partner LiveTime Scoring helped develop and implement the system that has been tested in some form or fashion since 2019.

When the leader lights are successfully deployed, SuperMotocross will explore expanding the system to identify the second- and third-place riders. Depending on need and fan acceptance, more positions could be added.

SuperMotocross is exploring future enhancements, including allowing for live fan interaction with the lights and ways to use the lighting system during the race’s opening ceremony.