The competition, which officially begins this Sunday (October 21) with the Opening Ceremony at the Papp László Sportaréna in the Hungarian capital, is the first senior World Championships to use a ranking system to determine competitive seeds.

Previously athletes were put into brackets using a random draw, though the new system was announced at last year’s Championships in Paris.

"We are excited to see the results of this year’s rankings on the competitiveness of the World Championships," UWW President Nemad Lalovic said. 

"We will pay close attention to the results and of course, if necessary, adjust some parts of the rankings to make better conditions for athletes and fans."

Under the new system - set to be applied across all 30 weight categories at this year’s event - only wrestlers who finished within the top four of the pre-World Championships competition calendar are eligible to receive a seed.

The seed is non-transferable to another wrestler from the same National Federation, while if the seeded athlete does not enter their designated weight, then the seed moves to the next highest ranked wrestler.

Wrestlers may not carry their seed from one weight class to another.

The rankings on which the seeds are based, were determined by tallying points acquired at Continental Championships and several ranking series tournaments.

Results from the World Championships itself will be added to the rankings, with the final results listed later this year.

You can see a list of all the seeds here.