# #211 The Photo That Changed Everything: Griff Duncan's Running Journey

An episode of [The Marathon Podcast](https://invisiblenetwork.ai/podcast/1803837535), 7 Sep 2026, 1 h 03 min.

Audio: https://anchor.fm/s/11464a0e0/podcast/play/125266857/https%3A%2F%2Fd3ctxlq1ktw2nl.cloudfront.net%2Fstaging%2F2026-8-6%2F431269179-44100-2-be8e67faa5261.mp3

Get 20% off a Strava annual subscription with code KRISTIAN Save on FlexBeam using code WARWICKRUNS or this link: https://rechargehealthas.sjv.io/55GAPb Kristian sits down with Griff Duncan, whose Instagram documenting a couch to 3:03 marathon journey has inspired thousands, for a genuine conversation about how running completely reshaped his identity, his habits, and his confidence. Griff shares the story behind a photo he took on day one of a fitness challenge, a moment he describes as feeling lost, and how that challenge led him into running almost by accident when a friend wanted to train for a half marathon together. He opens up about the mistakes he made in his first marathon build, the significant lifestyle changes that came with it, including drinking far less and surrounding himself with more active people, and how getting a coach changed the trajectory of his training. The conversation closes with his approach to racing shorter distances to build speed and his next big goal: finally breaking three hours. In this episode: - The photo that captured feeling lost before everything changed - Talking a friend into a half marathon and signing up for a full marathon instead - Mistakes made during his first marathon training block - How running reshaped his habits, confidence, and identity - Significant lifestyle changes that came with getting serious about running - What made him decide to get a coach - Being coached in the same lineage as other podcast guests - Racing shorter distances to build speed for the marathon - His next goal: finally breaking the three hour barrier Timestamps 00:00 Welcome and introducing Griff Duncan 01:07 Kristian's Ironman training update 05:01 Welcome to Griff, and previewing the conversation 06:21 Griff's background in fitness and bodybuilding 10:40 Losing his drive after starting a full time job 11:22 Taking on the 75 Hard challenge 12:12 A friend's half marathon idea turns into a full marathon commitment 13:03 Setting his first marathon goals: from sub four to sub 3:30 13:39 Reflecting on his first marathon build 18:04 Why he'd tell new runners they don't need a coach right away 21:49 The value of an outside perspective once you're ready 22:32 What made him decide to get a coach 24:16 Racing more than just marathons to build speed 37:40 How his personal brand and identity have evolved 38:05 The photo that captured feeling lost before everything changed 40:58 The scale of his physical transformation 43:39 Wanting to coach others full time someday 52:48 Reflecting on the jump from 3:39 to 3:03 59:49 The mental hurdle of finally breaking three hours 2:00:43 Closing thoughts and where to follow Griff Griff on Instagram: https://www.instagram.com/griffduncan/ Start your free Musicbed trial: https://fm.pxf.io/kristianwarwick Full episodes + the Boston 2025 documentary: https://www.youtube.com/@Warwickruns Follow my training journey on Instagram: @warwick.runs Music from Musicbed: MB01XPYH8ZYENVAMB0133EV2TCQFZY

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