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NASA 25 Hours of Thunderhill

Official name history

2026	NASA 25 Hours of Ozarks
2025	The NASA 25 hours
2023	USAF 25 Hours Of Thunderhill Presented By Hawk Performance
1998–2002	Timex 12 Hours of Thunderhill

Statistics

Seasons in database: 24 (2001–2019, 2021–2023, 2025–2026)
Average number of events per season: 1
Longest season: 2 events (2026)
Shortest season: 1 event (2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2021, 2022, 2023)

Show more | Official website

< 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 201920202021 2022 202320242025 2026 >

2026 NASA 25 Hours of Ozarks

27–29 Mar		Ozarks International Raceway , United States NCNon-championship round. No points are awarded. Race to The 25! 11 Hour Endurance Race T+6+5	The event has ended.
25–28 Jun		Ozarks International Raceway , United States NASA 25 Hours of Ozarks

This calendar was last updated 23 December 2025, 17:25 (CET/CEST).

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