25 Hours of Thunderhill 21-hour update

Closing in on the last few hours of NASA’s 25 Hours of Thunderhill presented by Hawk Performance, the leaderboard is tightening as teams race to the noon (Pacific time) finish.

Crowdstrike/One Motorsports led through much of the night, but entered pit lane just after 7 a.m. with mechanical issues. The problem allowed the Porsche from Toyo Tires/Flying Lizard to take the overall lead with One Motorsports/Hankook chasing.

HQ Autosport Racing continues to dominate the E2 class, building a 36-lap advantage.

No major issues or crashes occurred overnight and all but a handful of cars continue to race, even as early morning temperatures dipped below freezing.