Back to Jason’s profile

Going the distance.

I’m an elite marathon runner, former professional long-distance triathlete and coach.

Follow my training on Strava ↗
2:24:11
Marathon personal bestGold Coast, 2025

How I got into it

I began running more consistently in my final year of school, when I wanted to set a better fitness example as a senior leader in army cadets. At university, running became a bigger part of my life and I completed my first half marathon.

Duathlon and competitive long-distance triathlon followed. Eventually, the training demands of triathlon alongside full-time work led me to focus on marathon running. I described that transition in my InStitchu interview.

The three-piece-suit marathon

2:38:21

Guinness World Records: fastest marathon in a suit (male).

View the verified record →

The idea

It started as a joke. I was talking to someone in marketing at a suit company, said something about running in a suit, then wondered whether there was a record for it. There was.

It was a less conventional challenge in a sport that can get very focused on numbers, and a chance to raise money for Movember.

Preparing for it

I worked with InStitchu on a tailored three-piece in Woolmark-certified Australian merino, woven with enough natural stretch to run in, and tested it at City2Surf. The attempt moved from Sydney to Melbourne after illness disrupted the original plan. Preparation for Melbourne was limited, and the later kilometres became difficult as fatigue and the weight of the wet wool accumulated.

The result

I finished in 2:38:21. Guinness records the achievement on 12 October 2025. Australian Wool Innovation reports that the run raised $6,750 for Movember.

Race account: Baseline interview. Preparation: InStitchu. Fundraising: Australian Wool Innovation.

Selected results

Selected race performances, with source links
EventYearResultSource
Tauranga Half20219th · 3:55:18PTO results
Sunshine Coast Marathon20231st · 2:28:57Race results
Gold Coast half marathon20231:09:12World Athletics
Sydney Olympic Park · 10km road202431:28World Athletics
Gold Coast Marathon20252:24:11*2025 results listing
Melbourne Marathon · in a suit20252:38:21 · Guinness recordGuinness

*My supplied PB and the linked results listing give 2:24:11. World Athletics records 2:24:13 for the same date and venue. The two-second difference is retained here rather than assigning an unverified explanation.

The Marathon Clinic

From athlete to founder and coach

The Marathon Clinic is where my running, coaching and product-building come together. I founded it around one event: the marathon. My role is Founder & Head Coach, bringing the experience of racing and preparing for endurance events into the way I work with other runners.

I want runners to understand why they are doing a session, how to interpret their training and how to prepare for the demands of their chosen course. The Clinic combines that coaching approach with free guides, a plan generator and practical tools for training paces, fuelling and course-specific pacing.

I used AI to help build the website and tools, while the training calculations and plan logic follow defined rules. The technology makes that knowledge more accessible; one-to-one coaching provides the individual conversation and judgement.

Visit The Marathon Clinic ↗

Conversations on the run

I hosted Execs Who Run through 2025, talking to senior leaders about work and endurance. In an October 2025 episode, Tim Minchin and I discussed his first marathon and my Melbourne suit run.

Listen to the Tim Minchin episode →execswhorun.com ↗

My University of Canterbury alumni profile also covers the combination of professional work, running and coaching.

Let’s talk

Book a meeting with Jason.

Loading available times…

Prefer to get in touch directly?Email Jason ↗