World No. 1 Ash Barty named 2021 WTA Player of the Year - Just Women's Sports
Gauff becomes ITF Juniors world No. 1
Novak Djokovic Clinches Record Seventh Year-End No. 1 In FedEx ATP Rankings | ATP Tour | Tennis
No 1 Swiatek upset by Krejcikova in Dubai final | AP News
ATP Rankings Movers: Roger Federer Returns To No. 1 | ATP Tour | Tennis
List of ATP number 1 ranked singles tennis players - Wikipedia
Bencic tops Jabeur 6-1, 5-7, 6-4 for Charleston Open title | The Seattle Times
World no. 1 junior Chun Hsin Tseng eyes Grand Slams history - Official Site of the 2023 US Open Tennis Championships - A USTA Event
Australian Open 2018: Djokovic, Federer win; Muguruza out - Sports Illustrated
Kaia Kanepi sends No. 1 Simona Halep home in stunner - Official Site of the 2023 US Open Tennis Championships - A USTA Event
Hounds Make History with First Ever #1 Ranking - UIndy Athletics
Roger Federer retiring from pro tennis at age 41: 'The tires finally wore out' - oregonlive.com
ATP Rankings Movers: Roger Federer Returns To No. 1 | ATP Tour | Tennis
Francesca Di Lorenzo vs. Christina McHale Full Match | 2018 US Open Round 1 - YouTube
Norrie: Goal is World No. 1
Swiatek, Gauff lose at Australian Open; Korda in 1st Slam QF
Djokovic Completes Remarkable Return To No. 1 | ATP Tour | Tennis
What the ATP's year-end Top 30 would look like if there had been points at Wimbledon
2018 ATP World Tour - Wikipedia
At 36, Roger Federer Becomes Oldest No. 1 In Tennis
