Quantum physicist, mom of three, and now, world record holder. Physics Professor Jenny Hoffman crossed the George Washington Bridge and headed for New York City Hall on Nov. 2 leading a throng of cheering supporters, having run more than 3,000 miles since leaving San Francisco City Hall Sept. 16.
Hoffman, 45, traversed the U.S. in 47 days, 12 hours, and 35 minutes, beating the previous record of 54 days, 16 hours, and 23 minutes. The Clowes Professor of Science, who was on sabbatical, ran 15 hours a day on six hours of sleep each night through seven grueling weeks with the support of a dedicated crew.
A three-time national ultrarunning champion, Hoffman had made a record attempt in 2019 but suffered a devastating knee injury more than 2,500 miles in that forced her to stop. “Through surgery and rehab and pandemic and work and family life, I have dreamed every single day for four years about redoing and completing this run,” Hoffman said on her website, where she chronicled her journey.
Hoffman plans to submit documentation to Guinness World Records to certify her accomplishment. She’s already been credited the record by Fastest Known Time. Her next race will be the 24-Hour World Championship in December in Taipei, Taiwan.
As she rested her legs in her Cambridge office, the Gazette asked Hoffman to reflect on her record-setting run, and what’s next.
GAZETTE: I’m sure you’ve been asked this many times. But, why?
HOFFMAN: I give different answers because there are many reasons. But fundamentally, I am really driven to tackle the biggest, hardest, longest, highest thing in front of me. That’s always been almost a compulsion. Since I was a child, I thought about crossing the U.S. under my own power. It’s been a dream in the back of my mind for a long time.
GAZETTE: What were some of the things you thought about while running? Was one of those things physics?
HOFFMAN: No! This was a break from physics. Some of it was the really mundane things, like calculating mileage, or what am I going to eat at the next aid station, or remembering to put on sunscreen. That consumed quite a large fraction of my bandwidth.
And then, it was a lot of visualization of the end, and gratitude for the opportunity to do this, and thinking about the people I would see at the end. I also thought a lot about how I could capture this experience in words — to share in my daily online journal, or maybe in a book someday.
GAZETTE: What was the most beautiful thing you saw?
HOFFMAN: I think the absolute most beautiful moment of the run was in Utah at a 9,383-foot pass between Cottonwood and Eccles canyons. It was a full moon, and I hit the pass in the early morning. The sun was coming up, the moon was setting, the moon was pink, and the foliage was perfect. But I was also really sick at the time. The first two weeks were really rough. I had come down with a cold, I was dealing with altitude sickness, and I hadn’t fine-tuned my diet yet. So despite being the most beautiful, I would not say it was the best day.
Maybe the best moment of my life, though, was crossing the GW bridge and seeing so many friends there waiting. Wow. By the time I finished, I had a pack of 20 or 30 people that were just kind of accruing as I ran that last 12 miles. And I just thought, “What did I do to deserve this? Yes, I just ran 3,000 miles. But what did I do in the cosmic sense? How was this so magical?” I just think every human deserves a moment like that.