in the second round by Tennys Sandgren. In Washington, D.C., he was eliminated in the second round by lucky loser Norbert Gombos. At the Rogers Cup, he dismissed 11th seed Borna Ćorić from the tournament in the second round. He was beaten in the third round by seventh seed Fabio Fognini. Playing in Cincinnati, he lost in the third round to 16th seed and eventual finalist, David Goffin. At the US Open, he was defeated in the first round by Dan Evans. Seeded seventh at the St. Petersburg Open, Mannarino fell in the second round to qualifier Egor Gerasimov. At the first edition of the Zhuhai Championships, he reached his second final of the season after wins over Chinese wildcard Ze Zhang, top seed Stefanos Tsitsipas, qualifier Damir Džumhur, and eighth seed Albert Ramos Viñolas. He lost in the championship match to seventh seed Alex de Minaur. In Tokyo, he was defeated in the first round by qualifier and eventual finalist, John Millman. At the Rolex Shanghai Masters, he fell in the first round of qualifying to Vasek Pospisil. Seeded seventh at the Kremlin Cup, he reached his third singles final of the season. He ended up losing to sixth seed and Russian Andrey Rublev. At the Vienna Open, he was beaten in the first round by Sam Querrey. His final tournament of the year was the Paris Masters. He defeated qualifier Casper Ruud in the first round. He lost in the second round to second seed Rafael Nadal. Mannarino ended the year ranked 43. 2020: Top 35 year-end ranking Mannarino began his 2020 season at the Qatar ExxonMobil Open. Seeded seventh, he lost in the first round to Alexander Bublik. Seeded seventh at the Auckland Open, he was defeated in the first round by Andreas Seppi. At the Australian Open, he was eliminated in the first round by fifth seed and eventual finalist, Dominic Thiem. After the Australian Open, Mannarino played at the Open Sud de France in Montpellier, France. He beat Alexei Popyrin in the first round to get his first win of the season. He was then beaten in the second round by top seed and eventual champion, Gaël Monfils. In Rotterdam, he lost in the first round to Pablo Carreño Busta. Seeded seventh at the Delray Beach Open, he suffered a first round defeat at the hands of Kwon Soon-woo. Competing in Acapulco, he failed to