Daniil Medvedev entered the top three in the ATP rankings for the first time on Monday, while Russian compatriot Aslan Karatsev climbed 72 spots after his shock run to the Australian Open semi-finals.
Medvedev ended the Australian Open as the runner-up in the Grand Slam tournament for the second time, losing to the first in the ranking Novak Djokovic in Sunday's final in Melbourne; the Serb won his 18th major title.
Former US Open finalist Medvedev has swapped places with Dominic Thiem, who dropped to fourth after being eliminated by Grigor Dimitrov in the straight sets in the last 16.
Bulgarian Dimitrov made into the top 20, but the biggest step was Karatsev, who became the 1st player in the Open era to reach the semi-finals of a Major in the main draw debut.
The 27-year-old Karatsev climbed from 114th to 42nd after knocking out three seeded before Djokovic ended his dream run in the last four.
The victory solidified Djokovic's status as the number one in the world, ensuring he will spend his 311th week there on March 8, surpassing Roger Federer's record of 310 weeks.
|03 (+1)||Daniil Medvedev||9735|
|04 (-1)||Dominic Thiem||9125|
|11 (+1)||Denis Shapovalov||2910|
|12 (-1)||Gael Monfils||2860|
|16||Pablo Carreno Busta||2585|
|17 (+4)||Grigor Dimitrov||2575|
|18 (-1)||Fabio Fognini||2535|
|20 (-2)||Stan Wawrinka||2365|