The World Memory Championships tests the mental strength and stamina of its contestants from all around the world.
At the competition late last year, London-based photographer David Vintiner captured the contestants at their wits’ end, while pitting their wits against each other.
From trying to recall over 30 decks of cards, to a set of names and faces, Vintiner reveals the various strains and various methods used to retain details.
[via David Vintiner]