He lost in four sets 6–7 (5/7), 6–3, 6–4, 6–2 against world number 63 Spaniard Roberto Carballes Baena on Court 5. The meeting lasted for 2 hours and 16 minutes.
The 30-year-old Carabales Baena will next face the winner of the duel between Russian Aslan Karatsev (ATP 77) and Czech Republic Jiri Lehka (ATP 29).
It was the second first round elimination in three appearances at the US Open for Holger Roon, who reached the third round in New York last year. The 20-year-old Danish player achieved his best Grand Slam result by reaching the quarterfinals of Roland-Garros (2022 and 2023) and Wimbledon (2023).
Roon is the second seed after Alexander Bublik to be knocked out in the first round of men’s singles. The Kazakh, seeded world 27 and 25, was beaten 6-3, 6-2, 6-4 by Austrian Dominic Thiem (ATP 81) on Monday, who finds himself in the second round of a major. For the first time since the Australian Open in 2021.
Swiatek and Arenka passed without incident.
Inga Swiatek on Monday easily qualified for the second round of the US Open tennis, the fourth and final Grand Slam tournament in New York. The Polish, world No. 1 and defending champion at Flushing Meadows, dropped only one game to Swedish Rebecca Petersson (WTA 86), whom she defeated 6-0, 6-1 in 57 minutes.
Swiatek will next face Australian Daria Saville (WTA 322), who beat American Clarvie Ngounoue (WTA 494) 6-0, 6-2.
Easy qualification too for Belarusian Victoria Azarenka (WTA 18), who beat French Fiona Ferro (WTA 190) 6-1, 6-2.
34-year-old Victoria Azarenka, former world number one and US Open finalist in 2013 and 2020, will take on the winner of the match between China’s Lin Zhu (WTA 44) and Egypt’s Mayer Sherif (WTA 33) in the second round.
World number four Kazakh Elena Rybakina on Monday easily qualified for the second round of the US Open by defeating Ukrainian Marta Kostyuk (39th) 6-2, 6-1.
In the next round, the 24-year-old, who is still in search of a second Grand Slam title after Wimbledon 2022 and lost the final at the Australian Open earlier in the year, will take on Australian Ajla Tomljanovic (127th) in the quarters. Panna Udvardy (122nd) of Hungary was the finalist last year after the retirement of Queen Serena Williams.
The first seed to fall was Greek Maria Sakkari (WTA 8/N.8), a tournament semifinalist in 2021, who lost in the first round to Spaniard Rebecca Masarova (WTA 71), who won 6-4, 6-. 4.
Thiem and Ruud will also see the second round
Austrian Dominic Thiem made a successful entry into the US Open, which he won in 2020, defeating No. 25 seeded Kazakh Alexander Bublik in three sets 6-3, 6-2, 6-4 on Monday. Now ranked 81 in the world, Thiem, who will turn 30 on Sunday, had not been past the first round of a Grand Slam tournament since his 2021 Australian Open exit in the round of 16. “It’s been a long time coming”, he confirmed on court after the meeting, adding that he was “very happy” with the win.
In the next round, he will face either Pedro Cachin (66th in the world) of Argentina or American Ben Shelton (47th).
Norwegian Kasper Ruud, ranked No. 5 in the world and last year’s finalist, dropped a set on Monday to see off American Emilio Nava (154th) 7-6 before barely qualifying for the second round of the US Open. 5), 3-6, 6-4, 7-6 (7/5).
In the next round, the 24-year-old Norwegian will face Chinese Zhizhen Zhang (67th), winner of American JJ Wolff (45th) 7-5, 7-5, 6-7 (5/7), 4-6. 6 -3.