Alistair Overeem likely sealed his shot at the UFC heavyweight championship with a recent win over Andrei Arlovski.
And voters in the UFC rankings rewarded him, moving Overeem to second overall.
Gunnar Nelson climbed into the welterweight Top-15 at No. 13, replacing Albert Tumenov, who he defeated at UFC Fight Night 87.
Stefan Struve is also ranked, coming in at No. 13 in the heavyweight division.
Karolina Kowalkiewicz and Germaine de Randamie were big-time movers in the female polls, as Kowalkiewicz is now seventh at strawweight and de Randamie 12th at bantamweight.
Kyoji Horiguchi moved up to fourth at flyweight, while Bobby Green, Hector Lombard and Ben Rothwell were others who climbed.