Briton Jacob Fearnley extended his winning streak to 13 matches by beating Corentin Moutet at the Stockholm Open.
The Scot was unranked just over a year ago, but moved into the top 100 after winning four Challenger titles in a row.
The 23-year-old, after taking a few weeks off, won two qualifying matches to reach the main draw of the ATP 250 event in Sweden.
He beat Frenchman Moutet 6-2 7-6 (7-5) to set up a second-round meeting with Dutch seventh seed Tallon Griekspoor.
This is Fearnley’s second victory at ATP Tour level, having won the first round of Wimbledon in July after receiving a wildcard.
Fearnley’s rise to 98th in the world – from 1,893rd in September 2023 to 646th earlier this year – is the fourth biggest in the top 100 since 2000, according to ATP statistics.
At the same event, Cameron Norrie lost 6-4 6-4 to Serbian Miomir Kecmanovic as he continued his comeback from an arm injury.
Elsewhere, Dan Evans beat Japan’s Taro Daniel 6-2 7-6 (7-4) to reach the second round of the Almaty Open in Kazakhstan.
British women’s number one Katie Boulter was also victorious, beating Italian veteran Sara Errani 6-3 6-2 either side of a rain delay at the Ningbo Open in China.
Harriet Dart also won the Japan Open, beating German Laura Siegemund 3-6 7-5 7-5.