In a tournament featuring six of the top nine chess players, playing a game heavily geared towards draws, Fabiano Caruana won his first six games and finished 7-0-3. For perspective, current world champion Magnus Carlsen was second with a 2-1-7 record; his only loss was to Caruana.
This just doesn't happen. The last time anyone dominated such a high-level tournament was in 1994 (Anatoly Karpov at Linares).