Sebastien Locteau

Q1.When did you start running and what got you interested in it?

I started running to complement my swimming training and was my second sports so started running at around 7. Then always ran the local 5&10k races until I started triathlon when I was 16 and evolve from there.

Q2. How many marathons have you run?

26 but not officially with 14 Ironman, 1 double and 1 ultra which I walk most of the way for 11h in Millau.

Q3. What’s your favourite event?


Q4. How many miles do you run in a typical week?


Q5.  What’s your best ever running performance?

Sub 3h15 on a Ironman triathlon for the marathon leg.

Q6. What running shoes do you wear and do you wear racing flats?

asics racer

Q7. What was your worst marathon experience?

Getting lost after finishing my first marathon in Nantes (france. I ran 4h and could not find my car in a giant car park, was cold and nearly cried…. I was in my short and singlet for hours trying to find it.

Q8. How fast could you run a mile on a track?

Never done it…. well in 2007 after my back surgery I walk/run 11min

Q9. What’s your marathon PB?


Q10. What’s the best piece of training advice you were ever given?

If you don’t know why you are running for, keep running until you find it

Q11. Have you ever had a serious running injury?

Yes, I fell running croagh Patrick in 2011 and damage my knee, also had a proper stress fracture a few years ago…. but always been my fault.

Q12. What training session do you find the hardest/dislike the most and what’s your favourite session?

I am not a big fan of short intervals (under 400m) but I really like plyometric work and core conditioning workouts. I love going off road in the mountains or forest for easy run over 1h30.

Q13. What is the longest race you have completed?

Interesting, the Ironman maybe outdoor, maybe 24h swim indoor, or adventure race over a few days.

Q14.  Do you have a Favourite quote running or otherwise?

I suppose the one I use for coaching “pain is a reward of good work” obviously good training pain not injuries.

Q15. Weirdest food you’ve ever eaten during a marathon?

I just would not, so never happened…..yet.

Q16.  Strangest thing you’ve ever seen during a marathon?

In Belfast a good few years ago, I was doing an Ironman in 3 days finishing with the Belfast marathon, during the race a car hit me and I broke the light. The guy was in rage the army came with their guns and told the guy to get lost when he started to come after me.

Q17. What usually goes through your head as you cross the finish line of a marathon?

I could have run longer.

Q18. Do you get narky if you don’t get a run in?


Q19. Have you ever considered how you’d handle it if you couldn’t run again?

Oh yes, many many times… but can’t tell

Q20.  What event have you not yet completed that you would like to do the most in the future?

24h run

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  • Welcome

    Welcome to the 100 Marathon Club Ireland website.

    Running a marathon is an amazing achievement. The 100 Marathon Club Ireland was formed to encourage all aspects of marathon running in Ireland, from participation to organisation. We are a group of like minded individuals who complete 26.2 mile races for fun, for a sense of achievement and mostly in a quest to complete 100 marathons, or more.

    Influenced by the highly respected 100 Marathon Club UK, the club was formed in November 2010.

    You can join the club following completion of one  or more marathons. A  medal can be presented on completion of 25 , 50, 75 marathons. These are purchased by members and can be awarded by a selected member at a convenient race or sent out by post.

    The prestigious 100 Marathon Medal is awarded free from the club with one stipulation, that the awardee must be a paid member for at least one year prior to the year they receive the award. This is due to the fact that the 100 medal costs the club (wholesale) more than a members annual fee.

    Achievement medals/awards

    Club members wishing to receive achievement awards for 25, 50, 75 or 100 marathons can send in a list of completed marathons to 

    Lists should be submitted for verification on a spreadsheet giving details of each marathon you have completed (event name, location, date, race number and finish time)

    Download a sample marathon list spreadsheet  here

  • Benefits of joining:

    Sharing marathon experiences throughout Ireland and abroad.
    Sharing knowledge and tips on events, training and travel.

    Authorised to wear official ‘Marathon Club Ireland’ gear, or ‘100 Marathon Club Ireland’ gear if you have completed 100 or more marathons.

    Reductions on entry fee to Marathon Club Ireland events and many other races. Details on these incentives are sent out in the club’s newsletter emails.

    Participation in club organised events throughout the year.