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Prove It 5K & 10K – GM Milford Proving Ground April 18, 2026 – Milford, Michigan Looking for a Michigan spring 5K or 10K that’s unlike anything else? Prove It 5K & 10K gives you exclusive access to the GM Milford Proving Ground, one of the most iconic and secretive automotive testing facilities in the […] 
Run or walk along GM’s Milford Proving Ground! Think you’ve got the fastest 5k or 10K around? Put your money where your mouth is and come race on this world famous automobile test track. The course is challenging and beautiful and this is the only chance most mere mortals will get to visit this unique […] 
The 2012 course includes 3,620 feet of total elevation gain and 7,234 feet of total elevation change. Kind of gives new meaning to runner’s high. The uphill portions will test each runner’s strength and endurance while the equally challenging downhill sections are sure to weed out those who are unprepared. The breathtaking views and stunning […] |
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