The 41-year-old former Sale rugby player completed the 1500m swim at the Bassin de la Villette in 28.28 minutes, the 40km bike ride in the park around King Baudouin I Stadium in 1.10.26 hours and the 10km run in Regents Park in 54.23 minutes to finish 61st overall.
And after sharing the stage with former Olympic silver medallist Iwan Thomas and four-time world champion swimmer Karen Pickering, Wolstencroft admits memories of the unique triathlon will stay with him for a lifetime.
“It was a great day and a great event and I am delighted that I was part of it and it is something I will remember for a long time,” said Wolstencroft.
“I was pleased after the swim but I was really happy after the bike ride, it was a great time and I really enjoyed the course.
“I’ve met some great people and it was really interesting to talk to people and see where they were from and what they have done.”
Elite British triathlon brothers Alistair and Jonathan Brownlee both took to the podium, with 2009 world champion Alistair claiming the bike ride in 58.04 minutes and current world under-23 champion Jonathan triumphing in the run in 34.03 minutes.
It was Theo Rebeyrotte of France who claimed the overall title – and after helping celebrate Eurostar’s partnership with the London 2012 Olympic and Paralympic Games by testing himself against Europe’s best, Wolstencroft insists he’d be the first to put his hand up should the event return in 2011.
“I think it was a great day and it was a great idea for an event and to be able to say that you have competed in three cities in one day is brilliant,” added Wolstencroft.
“I have done lots of sporting challenges in the past but it was something completely different to anything that has come before it.”
PLEASE LEAVE IN FINAL PAR – Eurostar is the Official International Rail Services Provider to the London 2012 Olympic Games and Paralympic Games. Find out more about the world’s first ever Tri-City-Athlon or book tickets to travel on Eurostar by visiting http://www.eurostartricityathlon.com