How many random numbers could you memorize in an hour? Thousands? This seemingly superpower is a growing sport, evident in the biggest ever World Memory Championship recently held in Wuhan, China. Hundreds of masters of brainpower from all over the world gathered together, for fierce battles on brainpower. 

In the three-day event, competitors competed in adult, junior, kids and seniors categories, with 10 disciplines, like dates, pictures, random words, and so on. Fifteen-year-old Chinese girl Ru Weiqin came in second, and the overall champion was Ryu Song I from the Democratic People's Republic of Korea (DPRK). 

"I'm happy because I did something good for my country. I received a useful honor for my country. I did my best, and will continue to do so. I love the Democratic People Republic of Korea, and really want to do what is good for my country," said the winner. 

World records were also broken this year. In the binary discipline competition, a new world record almost doubled the previous record. 

A competitor in the seniors category, Zheng Wenzhou said: "My wife and I turned 63 this year. We learned memorization skills together. I also quit smoking and drinking after learning. Now we have positive mental outlooks. Our social circle is expanding, and a lot of friends join us to learn memory skills, even my granddaughter does."

The World Memory Championship started in 1991 with fewer than 10 participants. This year's participants reached a record-breaking number of 520, from 40 countries.

Raymond Keene, the global president of World Memory Sports Council mentioned that he thinks the important thing for the expansion of the championship is that education is very important in China, and China has added its magnet of expansion of education and pull people in.

Next year's World Memory Championship will be held in India.