No. 29 Hubert Hurkacz, +6
The Pole started the 2021 ATP Tour season in fine form by capturing his second ATP Tour trophy last week at the Delray Beach Open by VITACOST.com. He beat first-time finalist Sebastian Korda 6-3, 6-3 in the final and returns to the Top 30 of the FedEx ATP Rankings for the first time since the week beginning 24 August 2020. The 23-year-old Hurkacz is one spot off his career-high of No. 28, which he attained on 3 February 2020. Read More & Watch Delray Beach Final Highlights
No. 45 Alexander Bublik, +4 (Career High)
The Kazakhstani has risen to a career-high No. 45 in the FedEx ATP Rankings after contesting the third ATP Tour final of his career at the Antalya Open (l. to De Minaur). The 23-year-old beat World No. 10 Matteo Berrettini 7-6(6), 6-4 for his second Top 10 win in the quarter-finals and followed it up with a semi-final victory over Jeremy Chardy.