Planning to run with a group of about 15 during The Sydney Morning Herald Half Marathon on May 19, Seymour says half-marathons have now become «enjoyable» for him as he admits to getting a «bit bored» during a full marathon.
«People just need to get out there and take the first step,» he said. «You need to set yourself a goal, and have someone with you who can keep you accountable.»
Having recently completed one of the hardest races in the world — the Atacama Crossing, a 250-kilometre running race in the desert in Chile — Seymour hopes to pass on his tips and tricks of mental endurance to the group he is helping.
«People have a mixed reaction when I tell them I am doing something like this; some people call me crazy,» he said.
«We had to carry all our bags as well but, at the end of the day, every run is just a series a hurdle you have to get through.
«I try to tell people, just find somewhere flat and try running for 30 minutes, or just a couple of streets.
«You just have to keep thinking about that great shower at the end.»
Seymour is hoping to get his entire group to the end of the line, as, for some of them, it is their very first half-marathon.
He said that, while he has always loved fitness, running these distances was a journey he only started to take seriously a year ago.
Another reason he plans to run the half-marathon is in preparation for an ultra-marathon in Bali, another coast-to-coast challenge, which spans 84 kilometres and requires running overnight.
«I just really enjoy it,» he said. «I see it as a challenge, as I like to see how far I can push myself.»
Registrations for The Sydney Morning Herald Half Marathon on May 19 are now open via www.smhhalfmarathon.com.au.
Sarah is a journalist for The Sydney Morning Herald.