4 - Since 1973, Gabriel Diallo could become the fourth Canadian to defeat an ATP top 10 opponent at a GS event after Milos Raonic, Denis Shapovalov and Felix Auger-Aliassime – all three achieved the feat against Alexander Zverev. Tricky. #AusOpen

84, 1 - The combined age of 84 years and 1 day between Venus Williams and Tatjana Maria will be the oldest between two opponents in a main draw match at WTA level, since the WTA was founded in 1973 - age calculated at start of event. Evergreen! #HobartTennis | @wtatour.bsky.social

1 - Among the 48 players who have won 20+ career titles at ATP level in the Open Era, Daniil Medvedev is the only player not to have won a single event twice. Collector. #BrisbaneTennis

3 - List of players to claim the Men's Singles titles at both the Brisbane and (now defunct) Sydney Internationals, since the inaugural ATP Tour season in 1990: Lleyton Hewitt Roger Federer Daniil Medvedev 🆕 Company. #BrisbaneTennis

75 - Aryna Sabalenka has claimed a 75th match win as the WTA #1, becoming the ninth player to achieve the feat since 1990 – Sabalenka (92) has taken the equal-most matches to achieve 75 wins, along with Ashleigh Barty. Top. #BrisbaneTennis | @wtatour.bsky.social

22 - Aryna Sabalenka has claimed a 22nd career WTA title, surpassing Victoria Azarenka (21) for the outright third-most among currently active players at WTA level, trailing only Venus Williams (49) and Iga Swiatek (25). Elite. #BrisbaneTennis | @wtatour.bsky.social

1 - Aryna Sabalenka is the first player to reach three consecutive Women’s Singles finals at the Brisbane International, since the event’s inauguration in 2009. Roar. #BrisbaneTennis

2 - Belinda Bencic has won a tiebreak to love for just the second time in her career at WTA level, after previously achieving the feat at the United Cup in 2023 against Yulia Putintseva. Timely. #UnitedCup

68.8 - Belinda Bencic now accounts for 68.8% (11/16) of Switzerland’s total match victories at the United Cup, since the event’s inauguration in 2023. Flagbearer. #UnitedCup

45 - In the past decade, only three players have claimed more ATP-level match wins on Australian soil than Alex de Minaur (45) – Novak Djokovic, Grigor Dimitrov and Daniil Medvedev. Buoyed. #UnitedCup

42 - Since the event’s inauguration in 2023, Zizou Bergs (#42) is now the lowest-ranked player - and the first outside the top 20 - to claim multiple ATP or WTA top 20 wins at a single edition of the United Cup. Zone. #UnitedCup

13 - Elena Rybakina has claimed a 13th consecutive match win at WTA level, equalling her career-best winning streak from 2023, between Dubai and Miami. Carryover. #BrisbaneTennis | @wtatour.bsky.social

4 - List of players in the Open Era to finish consecutive seasons with a 90+% win rate (min. 10 matches) at ATP level: Bjorn Borg (1977-80) Ivan Lendl (1985-87) Roger Federer (2004-06) Jannik Sinner (2024-25) 🆕 Echelon. #NittoATPFinals

4 - Since 1970, Jannik Sinner is the fourth youngest player to win the ATP Finals in consecutive years, older only than Lleyton Hewitt, Ivan Lendl and Roger Federer. Title. #NittoATPFinals

1 - Since the event’s inauguration in 1970, Jannik Sinner (2024-25) is the first player to win the ATP Finals without conceding a set in multiple and consecutive years. Champion. #NittoATPFinals

6 - List of players since 1973 to meet in 5+ finals in a season as ATP #1 and #2: Lendl-McEnroe (1984-85) Agassi-Sampras (1995) Federer-Nadal (2006) Djokovic-Nadal (2011) Federer-Djokovic (2015) Alcaraz-Sinner (2025) 🆕 Historic. #NittoATPFinals

2016 - This is both the first time the ATP #1 and #2 will meet in the final at the ATP Finals, and the first time both finalists have gone 4-0 en route to the final, since 2016 (Andy Murray-Novak Djokovic). Exceptional. #NittoATPFinals

22, 188 - Since 1988, Carlos Alcaraz (22y 188d) is now the youngest player to reach the final at each of the four Big Title levels - Grand Slam, ATP Masters 1000, Olympics and ATP Finals - surpassing Alexander Zverev (24y 95d). Phenom. #NittoATPFinals

11 - Since the rankings were first published in 1973, only two ATP top-three ranked players have suffered more losses in a season to ATP top 10 opponents than Alexander Zverev (11) in 2025 - Jimmy Connors (13 in 1984) and Stefan Edberg (12 in 1992). Headloss. #NittoATPFinals

1 - Since the event’s inauguration in 1970, Jannik Sinner is the first player to win all three Round Robin matches without conceding a set in consecutive years at the ATP Finals. Dominate. #NittoATPFinals

50 - Felix Auger Aliassime (2022 and 2025) has become the first Canadian in the Open Era to manage multiple 50-win seasons at ATP level. Milestones. #NittoATPFinals

3 - Since 2000, Alex de Minaur has become the third player to reach the semi-final at the ATP Finals despite a losing record in the Round Robin, after David Nalbandian (2006) and Kei Nishikori (2016). Redeem. #NittoATPFinals

70 - Carlos Alcaraz (22y 188d) is the youngest player to claim 70+ match wins in a season at ATP level since Novak Djokovic (22y 164d) in 2009. Dominant. #NittoATPFinals

1 - Since the ATP rankings were first published in 1973, Carlos Alcaraz has become just the second player to secure multiple year-end ATP #1 rankings before turning 23, after Lleyton Hewitt (2001-02). Historic. #NittoATPFinals

4 - Since 2000, Jannik Sinner (2023-25) has become just the fourth player to reach 3+ consecutive semi-finals at the ATP Finals after Roger Federer, Novak Djokovic and Stan Wawrinka. Standard. #NittoATPFinals

25 - Excluding Carlos Alcaraz, Jannik Sinner has won his past 25 matches vs ATP top 10 opponents, with his last such defeat coming to Andrey Rublev in Montreal last year – that match against Rublev was Sinner’s second in a day. Chasm. #NittoATPFinals

84.6 - The highest of any currently active player, Jannik Sinner (84.6%, 11-2) only trails Ilie Nastase (88.0%, 22-3) for win rate at the ATP Finals, since the event’s inauguration in 1970 – minimum 10 matches. #NittoATPFinals

18 - Alexander Zverev has claimed an 18th win at the ATP Finals - the most of any player at this year's event, and now the equal-10th most overall, along with Stefan Edberg and Jimmy Connors (18 each). Familiar. #NittoATPFinals

2005 - Half the field at the ATP Finals will be made up of players from outside Europe (Ben Shelton, Taylor Fritz, Alex de Minaur and Felix Auger Aliassime) for the first time since 2005. Reassert. #NittoATPFinals

2 - Since the rankings were first published in 1975, Elena Rybakina is now just the second player to defeat the WTA #1 in back-to-back editions of the WTA Finals after Tracy Austin, who defeated Evert & Navratilova (1979-80). Slayer. #WTAFinalsRiyadh | @wtatour.bsky.social

1 - Since the event’s inauguration in 1972, Elena Rybakina has become the first player representing Kazakhstan and an Asian country overall to win the WTA Finals. Champion. #WTAFinalsRiyadh | @wtatour.bsky.social

1 - Elena Rybakina is the first player to defeat both Aryna Sabalenka and Iga Swiatek at multiple WTA-level events, after previously achieving the feat en route to the title at Indian Wells in 2023. Conqueror. #WTAFinalsRiyadh | @wtatour.bsky.social

0 - Winning the second-set tiebreak, Elena Rybakina has claimed a tiebreak to love for just the second time in her career at WTA level, after also winning 6-4 7-6(0) against Elina Avanesyan in Rome (R64) in 2022. Timely. #WTAFinalsRiyadh | @wtatour.bsky.social

4 - List of pairs since 2000 to meet in respective finals at a Grand Slam event, Tier 1/WTA-1000 event and at the WTA Finals: S. Williams-V. Williams S. Williams-M. Sharapova S. Williams-S. Halep A. Sabalenka-E. Rybakina 🆕 Spotlight. #WTAFinalsRiyadh | @wtatour.bsky.social

2012 - This will be the first final at the WTA Finals to be a rematch of a Grand Slam final since Serena Williams and Maria Sharapova in 2012. Showdown. #WTAFinalsRiyadh | @wtatour.bsky.social

1 - Aryna Sabalenka (2023-25) is the first player to reach three consecutive semi-finals as WTA #1 at the WTA Finals since Steffi Graf (1987-1990). Benchmark. #WTAFinalsRiyadh | @wtatour.bsky.social

54 - Since her debut on the WTA Tour in 2017, Aryna Sabalenka (54) has now claimed the most WTA top 10 wins of any player, surpassing Iga Swiatek (53). Chief. #WTAFinalsRiyadh | @wtatour.bsky.social

4 - Since the event’s inauguration in 1972, only three players have reached more consecutive semi-finals at the WTA Finals than Aryna Sabalenka (four) – Martina Navratilova (eight), Gabriela Sabatini (six) and Steffi Graf (five). Company. #WTAFinalsRiyadh | @wtatour.bsky.social

0 - Both Aryna Sabalenka (8-0) and Coco Gauff (5-0) are undefeated at the WTA Finals after taking the opening set. Crucial. #WTAFinalsRiyadh | @wtatour.bsky.social

53 - Jessica Pegula is the first American aged 30+ to register 53 wins in a single season at WTA level since Serena Williams (53 in 2015). Accomplish. #WTAFinalsRiyadh | @wtatour.bsky.social

3-0 - Since 2003, five of the previous six players seeded #6-8 to win all three of their RR matches at the WTA Finals went on to at least reach the final – Caroline Wozniacki (2014) is the only exception. Threat. #WTAFinalsRiyadh | @wtatour.bsky.social

17 - Novak Djokovic will be making his 17th appearance at the ATP Finals, equalling Roger Federer (17) for the most appearances of any player at the event, since its inauguration in 1970. Confirmed. #NittoATPFinals

5 - Since the format’s introduction in 1990, Jannik Sinner is now the fifth player to win each of his first five ATP Masters 1000 titles on hard court after Michael Chang, Andy Roddick, Andy Murray and Daniil Medvedev. Benchmark. #RolexParisMasters

0 - Since 1990, Jannik Sinner is now the fourth player to win the Paris Masters without conceding a set after Stefan Edberg (1990), Roger Federer (2011) and Novak Djokovic (2014, 2019). Relentless. #RolexParisMasters

29 - Jannik Sinner (29) has conceded the fewest games en route to the Paris Masters title since the event switched to hard court in 2007, with only Stefan Edberg (26) and Nikolay Davydenko (27) conceding fewer since 1990. Dominate. #RolexParisMasters

7 - Elena Rybakina has claimed her seventh WTA top 10 win of 2025, equalling her highest tally in a calendar year (seven in 2023). Fearless. #WTAFinalsRiyadh | @wtatour.bsky.social

2 - Jannik Sinner has become the first player to reach multiple ATP Masters 1000 finals in a season without conceding a set since Novak Djokovic (Madrid, Paris) and Daniil Medvedev (Montreal, Shanghai) in 2019. Stratosphere. #RolexParisMasters

0 - Since the event’s switch to hard court in 2007, Jannik Sinner is now the third player to reach the final at the Paris Masters without conceding a set, after Roger Federer (2011) and Novak Djokovic (2014, 2019). Terminator. #RolexParisMasters

1 - Since the format's introduction in 1990, Jannik Sinner (1) has now conceded the fewest games en route to victory over a defending champion at an ATP Masters 1000 event - completed matches. Cyborg. #RolexParisMasters

2013 - Jannik Sinner is the first player to claim a 6-0 opening set in an ATP Masters 1000 semi-final since Rafael Nadal in Madrid in 2013. Whoosh. #RolexParisMasters