Hardrock 100 Watch, Boston Marathon's New Rules, & Heat Training Protocols You Need For Summer

Hardrock 100 is six days from its scheduled start in Silverton, and for the first time in years, it may not happen at all. This week on The Threshold Podcast, Garrett and Tanner break down the Gold Mountain Fire's threat to the race, the same fire that already forced the Ouray 100 to cancel less than two weeks before its own start. If Hardrock goes down too, it's only the fourth cancellation in the race's 34-year history. Is proactive cancellation the responsible call? We also discuss: Boston Marathon cutting its qualifying times by five minutes across the board The new downhill penalty coming to 2027 qualifying, adding up to 10 minutes back onto times run on steep net-downhill courses Results from the Afton Trail Run 50K and 25K, including Nick Marshall's seventh-fastest 50K in the race's history Plus, we shift gears into training and mindset: A Bangor University study showing runners who added a 40-minute hot bath after workouts ran about 5% faster in a 5K time trial in hot conditions Kara and Nate's backyard ultra documentary, "The Race That Finally Broke Me," and a moment from race director Tim Walsh that stuck with us Garrett's new running streak, one mile minimum every single day for a year, inspired by John Naslund completing all 50 Grandma's Marathons this June An early look at Tanner's plan for Superior 100 in September, including where Garrett and others step in to pace him From wildfire watches to backyard ultra breakthroughs, this episode covers a little bit of everything happening in the sport right now. Links: Hardrock 100: ⁠https://hardrock100.com⁠iRunFar's 2026 Hardrock Preview: ⁠https://www.irunfar.com/2026-hardrock... Sun on the Ouray 100 cancellation: ⁠https://coloradosun.com/2026/07/05/co... Marathon qualifying standards: ⁠https://www.baa.org/races/boston-mara... heat acclimation study (Zurawlew et al., 2016): ⁠https://pubmed.ncbi.nlm.nih.gov/26661... and Nate — "The Race That Finally Broke Me": ⁠   • The Race That Finally Broke Me (dead cow g...  ⁠Afton Trail Run: ⁠https://www.aftontrailrun.com⁠Superior 100: ⁠https://www.superiorfalltrailrace.com⁠John Naslund's 50th Grandma's Marathon (MPR News): ⁠https://www.mprnews.org/story/2026/06...