No. 11 Felix Auger-Aliassime, +4 (Career High)
The Canadian has climbed four spots to a career-high No. 11 in the FedEx ATP Rankings after he reached his maiden major semi-final at the US Open. The 21-year-old became the first Canadian man to advance to the last four at the US Open in the tournament’s history (since 1881) and the youngest man since Juan Martin del Potro, 20, lifted the trophy in 2009. 

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No. 14 Jannik Sinner, +2 (Career High)
The #NextGenATP Italian enjoyed a run to the fourth round at the US Open for the first time, defeating Gael Monfils in a five-set epic before being stopped by World No. 4 Alexander Zverev. The 20-year-old has therefore jumped two spots to a career-high No. 14.

No. 31 Lloyd Harris, +15 (Career High)
It was a breakthrough US Open for the South African as he reached the quarter-finals at a major for the first time. The 24-year-old, who defeated Canada’s Denis Shapovalov and big-serving American Reilly Opelka en route to the last eight, has climbed 15 spots to a career-high No. 31.

No. 38 Carlos Alcaraz, +17 (Career High)
The 18-year-old has moved 17 places to No. 38 in the FedEx ATP Rankings after he became the youngest US Open quarter-finalist in the Open Era (since April 1968). The #NextGenATP Spaniard captured the biggest win of his career when he upset World No. 3 Stefanos Tsitsipas in the third round.

Other Notable Top 100 Movers
No. 5 Andrey Rublev, + 2 (Career High)
No. 7 Matteo Berrettini, +1 (Career High)
No. 10 Casper Ruud, +1 (Career High)
No. 17 Cristian Garin, +2 (Career High)
No. 19 Reilly Opelka, +5 (Career High)
No. 23 Daniel Evans, +4 (Career High)
No. 42 Sebastian Korda, +3 (Career High)
No. 57 Lorenzo Musetti, +3 (Career High)
No. 59 Pedro Martinez, +16 (Career High)
No. 62 Botic van de Zandschulp, +55 (Career High)
No. 67 Facundo Bagnis, +13
No. 68 Kevin Anderson, +9
No. 76 Benjamin Bonzi, +18 (Career High)
No. 81 Jenson Brooksby, +18 (Career High)

Source Tennis – ATP World Tour