We’re a bit late on this one but it’s still of interest: the 53rd International Mathematical Olympiad took place in Mar Del Plata, Argentina a couple of weeks ago. The event was hosted by the University of Buenos Aires together with the Argentine National Ministries of Education and of Science, Technology and Productive Innovation.
No fuss was made on the IMO’s official site after the event apart from the addition of a column to the results table. The top three countries were South Korea, China and the USA, with the UK coming 23rd, still ahead of Germany and France, in 31st and 39th places, respectively.