Harriet Frost: 2x Arc of Attrition 100 mile finisher, Race Director, Business Owner of Grit Culture, Co-parent of Sea+Flo supporting people to upgrade their periods. Podcast By cover art

Harriet Frost: 2x Arc of Attrition 100 mile finisher, Race Director, Business Owner of Grit Culture, Co-parent of Sea+Flo supporting people to upgrade their periods.

Harriet Frost: 2x Arc of Attrition 100 mile finisher, Race Director, Business Owner of Grit Culture, Co-parent of Sea+Flo supporting people to upgrade their periods.

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 Harriet Frost is a force of energy, endurance, and entrepreneurial grit. From completing the notorious Arc of Attrition 100-mile ultra twice, to directing multiple trail races, to co-founding a menstrual cup company focused on sustainable period care for athletes — Harriet is redefining what it means to pursue hard things, in business and on the trail. In this episode, Harriet shares her journey from growing up in Cornwall to discovering a love of endurance sport later in life — despite hating running at first. With no formal coaching, she’s built her own training strategy based on experience, discipline, and gut instinct — and it’s taken her to the finish lines of some of the UK’s most brutal ultra events. We also dive into the founding of Sea+Flo, a period care company created by women, for women, aiming to empower people to better understand and manage their menstrual health during sport. Harriet speaks candidly about the mental strength required to train alone, run in the dark, and manage periods while racing, as well as her mission to bring more female voices to the forefront of adventure and endurance media. This is a conversation about grit, vulnerability, and showing up — again and again — even when the path ahead is long, muddy, and uncertain. New episodes of the Tough Girl Podcast drop every Tuesday at 7 AM (UK time)! Make sure to subscribe so you never miss the inspiring journeys and incredible stories of tough women pushing boundaries. Do you want to support the Tough Girl Mission to increase the amount of female role models in the media in the world of adventure and physical challenges? Support via Patreon! Join me in making a difference by signing up here: www.patreon.com/toughgirlpodcast. Your support makes a difference. Thank you x Show notes Who is Harriet?Completing her 2nd Arc of Attrition 100 mile ultraRace Director to 2 current races and soon to be a 3rdRunning her own business called, Grit Culture - focused on business management Launching a menstrual cup company called Sea+Flo in 2024 with her best friendDog mum to NovemberBeing surrounded by an amazing network of friends and familyHow things connect togetherSpeaking with Harriet mum, Theresa Frost on the Tough Girl Podcast Having parents to everyone Childhood and growing up in CornwallLearning resilience and grit from a young ageBeing supported by her parentsLoving school and heading off to University in Southhampton to study fashion and journalismNot really knowing what she wanted to doTravelling and working on super yachts Heading off to London for 3 years Spending time in Australia for 2 years, and New Zealand for 2 years, before moving back to CornwallHating running…. And finding running really hard Living in London and doing her first triathlon in 2012/2013Doing her first marathon during her first 100kRace to the Stones 2017 Doing her next ultra in 2023 - Isle of Wight in April Arc of Attrition on the South West Coast Path. 100 miles. Entering the raceThe Plague 64 miles race (toughest races she’s ever done) Planning her own training and talking things through with her mumGoing on how her body feels and past experience Working backwards from the race start dateFocusing on back to back runsThe mental toughness of training and training soloOut and back runs and the mental challengeKnowing there is still more in herFitting running into her lifeTraining in winter and in the dark The stress of running in the dark as a female and the wasted energyWhy it’s discipline over motivationRecovery…. And what it looks likeHaving big toe strainWhy the Arc was different in 2025 after being taken over by UTMB Feet and blistersNutrition, food, fuelling The struggle of eating foodPracticing eating on 20 milers Training and periods Sea + Flo reusable menstrual cup companyWhich menstrual cup?How using a menstrual cup came aboutPutting herself out there a bit moreWomen doing amazing things and not getting enough airtimeNikki Love breaking the women’s record for running across Australia “It’s not about beating the men it’s about winning for the women” - Hannah Paradise Jasmine Harrison - swimming the length of Great Britain and not being able to to get a book deal - The lack of stories of women in the news The women who inspire Harriet Lucy Gossage - “It’s a privilege to choose to suffer” How to connect with Harriet onlineFinal words of advice for women who want to pursue endurance sportsBeing inspired by Sarah WilsonBuilding your resilience in sport or physical challenges and how it can help you in your everyday lives Social Media Website grit-culture.com seaandflo.com Instagram @harriet__frost @grit.culture @seaandflo
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