2021 Grand Swiss, Round 4
Alireza Firoujza's 100% record was broken in round 4, as Yangyi Yu held him to a draw. Perhaps suprisingly, though, he remained the sole leader, as every player who started the round on 2½ points also drew. This enabled those players who started the day on 2 points to move within half a point of the lead, and five players - Vachier-Lagrave, Tari, Petrosyan, Sevian and Shirov - managed to do so. As a consequence, round 5 will see the two Frenchmen face off against each other in a keenly-anticipated encounter. At the other end of the table, there is no longer anyone on a 0% score either - the only player on 0/3, Aydin Suleymanli, managed a draw against Budisavljevic.