Flatmates Andy, Dom and Alex took 17-and-a-half hours to have a drink in every Spoons in zones 1 and 2 on the Transport for London map.
They mostly only had time for a Sours shot in every bar, and by the time they finished at 10.20pm they had spent just £105 each in total – £74 on drinks, £8 on food and £23 on travel.
The trio – who do not want to use their surnames – uses buses, trains and the Undergound to get across the capital.
Andy, a 26-year-old recruiter from Reading, Berks., said: “I just suddenly thought of doing a silly challenge like that and I knew there were a lot of Wetherspoons in central London.
“It was about a year in the making.
“Our self-imposed rules were that we had to go to every Spoons in Zone One and Two and we had to buy a drink in each one.
“We weren’t sure that we were actually going to be able to get them all in one day as it was a bit of a run around London.
“We were sprinting through some by the end by going in and just leaving in about two minutes once we had done an apple Sours shot.
“It was quite reasonable considering we went to 37 pubs and travelled all the way across London. It was far lower than we had planned.”
Andy says that the price of a pint varied hugely at the different locations, with Hackney offering ale for as little as 99p, while others didn’t sell anything for below £5.
Their favourite pubs were the Crosse Keys in Monument and the Fox on the Hill in Herne Hill, which they said has a lovely beer garden.
Overall, Andy says the day went very smoothly, but they did end up walking in the wrong direction for around 15 minutes on their way to the Stargazer at the O2.
He added: “It was a really good day out to be honest. We thought when we headed out that it was going to be an absolute slog and we would have had a horrible time. But it was a great day.
“We got to go to lots of parts of London that we don’t really tend to go to.
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“Lots of the Spoons are in quite nice historic locations so they can be quite nice. If you can ignore the interesting carpet and long old walk to the toilet.
“It was properly planned out. I plotted them all out on London Tube map by putting a dot next to the closest station. It was relatively meticulous. It went very smoothly.
“The overwhelming emotion at the end was tiredness more than anything else. With all the time on buses and trains you start sobering up quite quickly and don’t really feel the vibe anymore.”
Andy is now trying to think of an idea for his next challenge, but he says it has been hard to come up with anything that he think will top this.
He encourages others to take on his Wetherspoons challenge, but says his route is already outdated as several locations have shut and new branches have opened since they completed it.