Ritual, wrestling and Reddit: Grand Sumo meets internet fandom in London

There are not many sports that can keep an audience enraptured through 45 minutes of ceremony before the first point is even contested.

And yet, the intricate traditions unfolding in a small clay ring - virtually unchanged in hundreds of years - managed to do just that.

Welcome, then, to the Grand Sumo Tournament - a five-day event at the Royal Albert Hall featuring 40 of the very best sumo wrestlers showcasing a sport which can date its first mention back to 23BC.

London's Victorian concert venue has been utterly transformed, complete with six-tonne Japanese temple roof suspended above the ring.

It is here the wrestlers, known as rikishi, will perform their leg stomps to drive away evil spirits, and where they will clap to get the attention of the gods.

And above all this ancient ceremony, a giant, revolving LED screen which wouldn't look out of place at an American basketball game, offering the audience all the stats and replays they could want.

Sumo may be ancient, and may have strict rules governing every aspect of a rikishi's conduct, but it still exists in a modern world.

And that modern world is helping spread sumo far beyond Japan's borders.

It was a "random video" which first caught Sian Spencer's attention a couple of years ago.

This was quickly followed by the discovery of dedicated YouTube channels for a couple of the sumo stables, where rikishi live and train, waking up early to practise, followed by a high protein stew called a chankonabe, and then an afternoon nap - all in the service of bulking up.

Then she discovered the bi-monthly, 15 day championships, known as basho, and from there, she was hooked.

The London tournament was simply a "once-in-a-lifetime", not-to-be-missed, opportunity to see it all in real life, the 35-year-old says.

Julia and her partner Cezar, who live in Edinburgh, discovered sumo through a more traditional route: a trip to Japan six years ago.

"We saw it as a very touristy activity, but we actually ended up loving the sport," says Julia, 34.

"From there on, we tried to find communities, information, just to learn more and more about it," Cezar, 36, adds.

Colleagues, friends and family, they found, could be quite taken aback by their new passion.

"It's the only sport we watch," explains Julia - so they found like-minded people on messaging apps like Telegram.

"We found Italian groups, English groups," says Julia.

"Outside of Japan, online is the only way to interact with the sport," adds Cezar.

Going to Japan is almost the only way to see a top-flight sumo tournament.

This week's event in London is only the second time the tournament has visited the city - the first time was in 1991 - while the last overseas trip was to Jakarta in 2013.

But even going to Japan isn't a guarantee of getting a seat. Last year was the first time in 24 years that all six of the bi-monthly, 15-day events had sold out in 28 years, Kyodo News reported - fueled by interest at home, and by the tourist boom which saw more than 36m foreigners visit in 2024.

So for many, the London tournament is the first time they have watched sumo in person - and it doesn't disapoint.

"Seeing it up close, you get a sense of the speed and the power which you don't get on TV. It was incredible," says Caspar Eliot, a 36-year-old fan from London. "They are so big."

To win, one man needs to push another out of the ring or to the ground using brute strength. The majority use one of two styles to achieve this, often in split seconds - pushing, or grappling.

Either way, the sound of the two rikishi colliding in the first moment of the match reverberates around the hall.

Of course, the size of the rikishi is one of the first things most people think of when they think of sumo. The Albert Hall's director of programming revealed to The Guardian earlier this week that they "had to source and buy new chairs which can take up to 200kg in weight".

But sumo - for all its sell-out events - is not without its troubles behind the scenes. A series of scandals over the last couple of decades around bullying, match fixing and sexism have dented its image.

And then there is the fact that last year - while being a bumper one for ticket sales - saw the lowest number of new recruits joining the stables.