Randi Zuckerberg is best known as the sister of Meta founder Mark Zuckerberg, but in the ultra running world, she's building a reputation entirely her own. After a 20-year running hiatus, Randi returned to the sport in 2023 and has since completed two Cocodona 250s, set the overall FKT on the Baja Sur Trail, and run a marathon PR at the Boston Marathon... all at age 44.In this episode, Jessy Carveth sits down with Randi to unpack her remarkable spring of racing, the mental and physical strategies behind her 10-hour Cocodona improvement, and how she balances life as an entrepreneur, mother of three, and elite ultra runner.Chapters:0:00 Teaser: Using AI and a donkey to solve a hydration crisis0:33 Intro — Who is Randi Zuckerberg?1:54 How the body is holding up after a jam-packed spring3:02 From Facebook Live pioneer to ultra runner4:14 Quick fire questions (coffee, road vs. trail, headphones)4:51 The 20-year running hiatus and comeback story8:38 Why an entrepreneur's mindset is perfect for ultra running11:31 The Double Boston: 5K with her son + marathon PR16:12 Cocodona 250 Year 2: How she cut 10+ hours off her time19:29 Sleep strategy: 40 hours awake, 125 miles before first rest23:23 The darkest moments of the race — and how she got through them27:30 Recovery, a torn hip labrum, and unorthodox Cocodona training30:34 The Baja Sur Trail FKT — and the donkey water station39:30 Balancing training with motherhood and entrepreneurship43:24 Fueling for 250-mile ultras (Coca-Cola as a health food)47:14 Shoes, Mount to Coast, and getting brother Mark Zuckerberg to try them53:31 What's next: Badwater pacing, the Bronx perimeter, NYC Marathon55:57 Advice for runners in their 40s

How do you plan a running goal that's 2, 3, or even 5 years away and stay motivated long enough to hit it? This week, Michael Doyle and Katelyn Tocci answer listener questions on long-term goal setting for distance runners: the right mindset, how to structure your training years, and when to make the jump from half marathons to the full.0:00 Intro — Alex's Wedding Month & What's Coming8:23 This Week's Topic: Long-Term Goal Setting9:22 Sponsor: Lagoon Sleep Pillows11:13 How to Submit Your Questions12:35 Q1: Eric's Sub-2:58:50 Marathon Goal (Stockholm)31:33 Q2: Connor's 5-Year Great South Run Plan (Portsmouth)47:42 Q3: Megan's 3:45 Marathon Training Plan (Florida)58:32 Q4: George's Path From Half to Full Marathon (Denver)1:07:18 Outro, YouTube & Run Club UpdatesLagoon pillows help us sleep better, so we run better. Want to try? You can save 15% with code MARATHON. Go to https://LagoonSleep.com/marathonhandbook and take the 2-minute sleep quiz to find your match.Email: ⁠podcast@marathonhandbook.com⁠Join RunClub, sign up for our Newsletter, or Send Us a Voice Note: marathonhandbook.com

This week on The Running Story, Michael Doyle and Jessy Carveth break down the five biggest stories in the running world including a scary medical emergency involving one of the greatest track runners of all time, a jaw-dropping performance from an eighth grader, a Dutch marathon canceled over a fake paramedic scam, and why Berlin 2026 is shaping up to be the most anticipated marathon of the fall season.Chapters:0:00 Intro — Top 5 Running Stories of the Week1:27 Harry Styles Donates to Charity Runner Lawrence Dennis5:15 8th Grader Luke Surface Runs World Best 5K (14:25) at Hayward Field8:16 Dutch Sneak Marathon Canceled — Fake Paramedic Scam Exposed12:32 Tigst Assefa Returns to Berlin to Chase the Women's Marathon World Record20:40 Jenny Simpson's Medical Emergency at Sir Walter Miler — Latest Update23:58 The Running Story Is Getting Its Own Podcast Feed

The 2027 London Marathon has officially confirmed it will become a two-day event and Michael Doyle and Jessy Carveth are breaking it all down in an emergency episode of The Running Story by Marathon Handbook.On Saturday, April 24th and Sunday, April 25th, 2027, London will host 100,000 runners across two days on the same course, making it the largest marathon event in history and the biggest fundraising event in UK sporting history.

Chapters:0:00 — Breaking news: London Marathon goes to two days

1:09 — What's confirmed: dates, format, course & ballot details

2:26 — Why London made this move (1.33M applicants)

5:19 — The logistics challenge & why it's framed as a one-off

7:26 — Unanswered questions: charity bibs & international quotas

9:08 — Elite field pressure after the historic sub-2 hour marathon

9:57 — A landmark moment for women's marathon coverage

12:03 — Elite wish lists: who needs to race London 2027

13:46 — The money behind running two World Marathon Major days

15:00 — One-and-done or permanent? Jessy's take

16:26 — Will New York, Chicago & other majors follow?

19:13 — Audience question & wrap-up

SUPPORT OUR SPONSORS:This episode is presented by Momentous. Use promo code MARATHON for up to 35% off your first order: https://⁠livemomentous.comWe use RYTHM for easy, convenient blood tests. 15% OFF : https://RYTHM.HEALTH/MARATHON

This week, Marathon Handbook news editor Jessy Carveth joins us to talk about everything you need to know to run your goal half marathon. Jessy is chasing a 1:27:30 at the Toronto Waterfront Half Marathon this October, and we used her season as the framework for a complete soup-to-nuts guide on how to run a goal half marathon.

We cover everything: how to pick the right race, how to set A, B, and C goals based on where your fitness actually is, how long your training block should be, and what your weeks should look like. Alex reveals the threshold training hack he credits for his breakthrough half marathon in Houston. Katelyn puts her coach hat on and gives her honest assessment of Jessy's race-into-fitness approach. And... Jessy makes a surprisingly compelling case for doing things entirely her own way.

Chapters:0:00 — Intro & Channel Updates4:27 — Ranking Our Favorite Race Distances14:30 — Sponsored by Momentous15:53 — How to Pick Your Goal Race25:29 — Setting Your Half Marathon Goals31:25 — Adjusting Goals Through Training38:51 — How Long Should You Train?44:49 — Sponsored by RYTHM47:24 — Half Marathon Training Basics54:03 — Jesse's Unorthodox Training Plan1:04:58 — Long Runs & Training Evaluation1:17:37 — Gear: Shoes1:25:52 — Gear: Socks & Watch1:27:24 — Race Weekend Nutrition1:31:05 — Warmup & Start Line Strategy1:38:26 — Pacing & The Hard Part1:41:45 — Training in the Heat

Email: ⁠podcast@marathonhandbook.com⁠Join Run Club and Send Us a Voice Note: marathonhandbook.com

A 13-year-old from Utah just broke a mile world record that had stood since 1973. Plus: Olympic triathlon gold medalists are hitting the track, a runner completed every single street in Chicago, Yomif Kejelcha could break the half marathon world record in Buenos Aires and the marathon lottery crisis is getting very real.

Chapters:0:00 — Intro & show announcements

2:53 — Story 1: 13-year-old Angelina Alder breaks 53-year-old mile world record

5:13 — Story 2: Olympic triathlon champions Alex Yee & Cassandre Beaugrand go to the track

7:35 — Story 3: Joabe Barbosa runs every street in Chicago (4,000 miles in 680 days)

12:00 — Story 4: Yomif Kejelcha targets half marathon world record in Buenos Aires

15:40 — Story 5: The marathon lottery crisis — Copenhagen, London & what's next

20:38 — Outro

Jimmy Whelan raced the Giro d'Italia, wore the EF Education First jersey in the World Tour, and beat Pogačar in a U23 race. Then he broke his pelvis, lost his contract, and messaged his boss from a hospital bed in Europe to say he was done.Less than a year later, he ran a 61-minute half marathon on his professional running debut at Valencia, 13th on the Australian all-time list. He's now signed with Salomon, based in Barcelona, coached by Andy Henderson (also coach to Phil Sesemann), and openly chasing the Australian Olympic marathon team for LA 2028.In this episode, Jessy Carveth sits down with Jimmy to talk about:• Why he walked away from pro cycling after 8 years• How cycling built an engine that's tailor-made for the marathon• Training doubles, 200km+ weeks, and learning to manage load as a new runner• The Berlin half marathon blow-up and what he learned from failing publicly• His marathon debut plans and his 2028 Olympic ambitionsWhether you're a competitive runner, a cycling fan, or just love a great comeback story, this one's for you.

Why does every marathon training plan include so much easy, slow running — even when your goal pace is well over a minute faster per mile? This week, a question from listener Seth (a former pro cyclist chasing a sub-3 marathon) opens up one of our most useful conversations yet.

SUPPORT OUR SPONSOR:

Lagoon pillows help us sleep better, so we run better. Want to try? You can save 15% with code MARATHON. Go to https://LagoonSleep.com/marathonhandbook and take the 2-minute sleep quiz to find your match.

Michael, Alex, and Katelyn break down the science behind easy running: zone 2, mitochondria, angiogenesis, the 80/20 rule, running economy, and why the world's best marathoners — including Eliud Kipchoge — run their easy days embarrassingly slow. They also share what easy running actually feels like in practice, how to gauge your effort without obsessing over pace, and why betraying the 80/20 rule is the fastest path to injury.

Email: podcast@marathonhandbook.comJoin Run Club and Send Us a Voice Note: marathonhandbook.com

Chapters:0:00 – Intro, Banter & What We're Covering18:07 – Listener Voice Note: Martina on German Pronunciation & NYC Events21:34 – Ad: Lagoon Sleep Pillows23:47 – Why You Must Run Slow to Race Fast (Main Topic)52:37 – Pronunciation Tangent: Capillaries, Claude & Canadian Quirks54:49 – Should You Race Again After a DNF? The Revenge Race Question1:05:55 – Outro & How to Connect With Us