Long Run Labs

Jonathan Levitt

Long Run Labs is a weekly series exploring the intersection of endurance and entrepreneurship from the team that brings you For The Long Run Podcast. From brand builders to movement makers, we spotlight the runners driving change in the outdoor and endurance space. These are the untold stories behind the tools, companies, and communities that shape the industry, told with curiosity, honesty, and heart. Hosted by Jon Levitt. New episodes drop every Tuesday.

  1. JAN 13

    The Future of the Creator Economy with Demitra Carter

    What if there was a framework you could follow as a content creator that would allow you to work with brands most effectively? Demitra Carter holds a Master of Science in Education in Sport Management and a Bachelor of Business Administration in Marketing. She is a relationship-driven sports content creator, host, and former Division I track and field athlete who is passionate about sports, women, and culture. Demitra made history as the youngest certified World Athletics Agent and brings a unique, global perspective to the sports industry through her experience working at ON as a Global Social Media Manager, where she helped shape brand storytelling at an international level. Currently signed to RH7 as a freelancer and influencer, Demitra serves as the Director of Influence at Popfly. She thrives in roles that sit at the intersection of sports, talent, media, and marketing, and is deeply committed to inspiring and connecting with others through authentic, impactful storytelling. Jon chats with Demitra about: brand authenticity and values alignment content creation across multiple platforms running community and individual sport dynamics local dealership and non-endemic partnerships LA 2028 marketing opportunities for athletes Stay connected: Follow Demitra: https://www.instagram.com/demitra_carter/ Follow Popfly: https://www.instagram.com/popflyco/ Share this episode on LinkedIn with someone who you think could also find it helpful!

    52 min
  2. 2025-12-30

    Hydration Revolution: How Stefan van der Fluit is Disrupting Health Tech

    From being bullied as a kid to becoming a national triathlon champion to building the world's first reusable sweat sensor… Stefan van der Fluit’s journey proves that our greatest challenges often become our greatest innovations. Stefan is a 4x founder; ex-Meta; ex-PolyAI; Entrepreneur First 2020; University of Cambridge 2017 graduate; and is racing bikes for Wolfox CAMS LeCol. He’s now building FLOWBIO → Deleting dehydration from the human experience. We are building the hydration AI installed in every health& fitness wearable. Bringing hydration metrics like water and electrolyte losses to Oura, WHOOP, Apple Watch, Samsung Wear, FitBit without any hardware redesign. Jon chats with Stefan about: conscious capitalism: doing business from good and long-term thinking building FLOWBIO: world's first reusable sweat sensor technology his Triathlon journey: connecting with father and overcoming childhood bullying hydration science: balance of water to sodium, not just intake angel investor network: athletic brewing, Aura connections through referrals  startup challenges: three near-death experiences, sold out for quarters Stay connected: Follow Stefan: https://www.instagram.com/sweatisdata/ This episode is supported by: Rocket Money Take control of your spending. Cancel unwanted subscriptions and reduce the rest with Rocket Money: RocketMoney.com/GORUN Superfiliate: This episode is brought to you by Superfiliate. If you're tired of overcomplicated and unnecessarily expensive platforms for affiliate marketing, do yourself a favor and check out Superfiliate.com. Mention that Long Run Labs sent you and get your first month free!

    46 min
  3. 2025-12-23

    The Intersection of AI Innovation and Running with Jason Kuperberg

    From pushing 2:46 marathon times to pushing the boundaries of AI, Jason Kuperberg discovered that the secret to both isn't about scale—it's about building exactly what you want to use yourself. Jason Kuperberg is a tech entrepreneur, marathoner, and the creator behind ‘Roast My Strava’ — the viral website bringing AI to your runs and rides. He is the co-founder of HyperWrite, an AI writing and research platform used by millions, and was named to the Forbes 30 Under 30 list for Consumer Technology. Jason combines his background in AI and tech startups with lifelong experience in endurance sports to explore how endurance entrepreneurs and outdoor brands can operate, innovate, and experiment using AI today. Jon chats with Jason about: how Jason achieved a marathon PR of 2:46 introduction to generative AI and large language models (LLMs) the “Roast My Strava” origin story three-phase approach for implementing AI prompting and AI Interaction best practices angel investing philosophies  Stay connected: Follow Jason: https://www.linkedin.com/in/jasonkuperberg http://instagram.com/jasonkuperberg https://www.strava.com/athletes/jasonkuperberg https://x.com/jasonkuperberg Roast My Strava: https://communityhub.strava.com/insider-journal-9/developer-voices-from-weekend-side-project-to-community-sensation-how-i-built-roast-my-strava-12288 This episode is supported by: Rocket Money Take control of your spending. Cancel unwanted subscriptions and reduce the rest with Rocket Money: RocketMoney.com/GORUN Superfiliate: This episode is brought to you by Superfiliate. If you're tired of overcomplicated and unnecessarily expensive platforms for affiliate marketing, do yourself a favor and check out Superfiliate.com. Mention that Long Run Labs sent you and get your first month free!

    1h 13m

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About

Long Run Labs is a weekly series exploring the intersection of endurance and entrepreneurship from the team that brings you For The Long Run Podcast. From brand builders to movement makers, we spotlight the runners driving change in the outdoor and endurance space. These are the untold stories behind the tools, companies, and communities that shape the industry, told with curiosity, honesty, and heart. Hosted by Jon Levitt. New episodes drop every Tuesday.

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