Every grand master that has beaten Carlsen since becoming world champion in 2013:
Viswanathan Anand
Levon Aronian
Bu Xiangzhi
Fabiano Caruana
Jan-Krzysztof Duda
Andrey Esipenko
Alexander Grischuk
Jon Ludwig Hammer
Sergey Karjakin
Vladimir Kramnik
Shakhriyar Mamedyarov
Arkadij Naiditsch
Hikaru Nakamura
Ian Nepomniachtchi
Yannick Pelletier
Teimour Radjabov
Richard Rapport
Ivan Saric
"W"esely "S"o
Veselin Topalov
Maxime Vachier-Lagrave