List of ATP number 1 ranked singles tennis players - Wikipedia
Nadal, Federer In Top 2 Year-End Emirates ATP Rankings For First Time Since 2010 As Five New Players Finish Season In Top 10 | ATP Tour | Tennis
ATP Tour Press Release: Five New Names In Year-End Top 10 ATP Rankings | ATP Tour | Tennis
By the numbers: The 2021 year-end WTA Rankings
Sports Digest: Carlos Alcaraz youngest No. 1 at the end of the year in the ATP rankings - USASPORTS.NEWS
ATP Tour – Final 2020 rankings – Open Court
Photos: 2021's biggest ranking rises into the season-ending Top 50
2021 ATP Predictions: Year-End Top 10 Rankings - Last Word On Tennis
Big 3 Dominance: Nadal, Djokovic, Federer top year-end rankings
By the numbers: The 2021 year-end WTA Rankings
Draw announced for Nitto ATP Finals, Nole clinches year-end No.1! – Novak Djokovic
List of WTA number 1 ranked singles tennis players - Wikipedia
End-of-Year Rankings & 2022 Earnings for Women's Tennis Players
2014 Year-End ATP Rankings & Fun Quick Facts | Tennis View Magazine
Andujar's 1,619-Spot Climb Leads Year-End Top 100 Movers | ATP Tour | Tennis
Projected Year-End ATP Tour Rankings for 2023 - Tennis Connected
Nadal dealt blow in bid to top year-end rankings
Carlos Alcaraz youngest year-end No. 1 in ATP rankings | AP News
Rankings Winners & Losers: Barty closing in on year-end No. 1
ATP final rankings for 2020: Djokovic, Nadal, Thiem create records - CGTN
Projected Year-End ATP Tour Rankings for 2022 - Tennis Connected
List of ATP number 1 ranked singles tennis players - Wikipedia
Watch: Carlos Alcaraz becomes youngest-ever year-end ATP World No. 1; Tennis world reacts | Tennis News
ATP rankings: end of year, Rafael Nadal, Roger Federer, Novak Djokovic, Alex de Minaur
Rublev, Schwartzman New Names In Year-End Top 10; Djokovic Continues Reign At No. 1 | ATP Tour | Tennis
