Subway
endurance riding is not limited to New York City, an in fact, there
is currently a more active circuit for riding the London
Underground.
On
Wednesday May 5, 2004, Geoff Marshall and Neil Blake visited all
275 tube stations in the London Underground in a time of 18 hours,
35 minutes and 43 seconds, breaking the 19 hour barrier and
setting a new record time.
On September 22 2004, Guinness
World Records confirmed that this time was a new world record,
making us the new record holders.
Their target was the time set by
Jack Welsby in April 2002 of 19 hours, 18 minutes and 45 seconds,
and was the officially registered Guinness World Record.
While Welsby's record was
official, they had heard from a
gentleman named Steven Karahan, who said that he made an attempt
back in February 2004, with a time of 18 hours, 47 minutes and 57
seconds. At the time of their attempt they were still
waiting to hear if this has been officially confirmed by Guinness
or not, but they used it as a marking point and set out to beat it
just to be sure.
It was the 7th run of the system
for Marshall and Blake was lucky enough to come along for the first
time on the record-setting trip. After finally setting the
record, Marshall has hinted that he may make a run at the Paris
Metro or possibly the New York Subway. So far he has done only
two more London runs with no new record.

Content and photos
from website
of Geoff Marshall
There is also a website
dedicated to the London Tube Challenge