No. 29 Hyeon Chung, +29
The 21-year-old became the first South Korean player to reach the semi-finals of a Grand Slam championship. With back-to-back wins at the Australian Open over fourth seed Alexander Zverev and six-time former champion Novak Djokovic, Chung continued his great rise after winning the inaugural Next Gen ATP Finals in November 2017. He soars 29 places to a career-high No. 29 in the ATP Rankings.

No. 3 Marin Cilic, +3
The Croatian star has moved to a career-high No. 3 after a sensational runner-up finish at the Australian Open. The final appearance was Cilic’s second in six months at Grand Slam level after also finishing runner-up to Roger Federer at The Championships at Wimbledon in July 2017. Cilic overcame World No. 1 Rafael Nadal and Britain’s Kyle Edmund to reach his first final at Melbourne Park. Read & Watch Final Highlights

No. 26 Kyle Edmund, +23
The 23-year-old Briton reached his first Grand Slam semi-final at the Australian Open, after winning five matches in an event for the first time in his career. Edmund beat 2017 US Open runner-up Kevin Anderson in the first round and then-World No. 3 and 2017 Nitto ATP Finals titlist Grigor Dimitrov in a dramatic quarter-final. Edmund rises 23 places to a career-high No. 26. Edmund is now just six places behind Andy Murray, who has been the British No. 1 since 2006.

No. 55 Tennys Sandgren, +42
Tennys Sandgren came into the Australian Open without a win at Grand Slam level, but reached the quarter-finals after four impressive wins. The 26-year-old American had previously played the majority of his tennis on the ATP Challenger Tour, with three titles to his name, before a stunning run that saw him beat three-time Grand Slam champion Stan Wawrinka and No. 5 seed Dominic Thiem. Sandgren rises 42 places to a career-high of No. 55.

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Other Notable Top 100 Moves This Week
No. 14 Nick Kyrgios, +3
No. 16 Tomas Berdych, +4
No. 22 Fabio Fognini, +3
No. 63 Marton Fucsovics, +17
No. 76 Taylor Fritz, +15
No. 80 Nicolas Kicker, +13
No. 82 Maximilian Marterer, +12
No. 85 Vasek Pospisil, +20
No. 96 Nicolas Jarry, +6

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