At the end of 12 rounds of classical-format games in the World Championship where the score was tied at 6 points apiece, Magnus Carlsen lost 13 ELO points, while the Challenger Sergey Karjakin gained 13. The latter thus climbed from No. 9 to No. 6 in the process.
Listed below are the Top 20 highest rated players in the December 2016 FIDE Ratings update:
Check out the December 2016 FIDE Top 100 List.