Kyle Edmund ended an eight-match losing streak in convincing fashion with victory over Ricardas Berankis at the Rolex Paris Masters.
The 24-year-old had lost eight straight matches dating back to a victory over Nick Kyrgios in Montreal in early August, dropping to 75 in the world rankings as a result.
Edmund has not been helped by some difficult draws but this was a kinder one against Lithuanian Berankis, and the British player used his powerful game to secure a 6-4 6-3 victory.
Edmund took a tight first set with the first break of serve in the 10th game, converting his fourth set point.
He stamped his authority on things at the start of the second set and extended his winning run to seven games to get to 5-0.
Berankis mounted a comeback with three quick games but Edmund played a confident final game to stop the rot.
He told Amazon Prime Video: "For a lot of weeks my focus has just been winning my next match.
"I've been through a few disappointing weeks so it's nice. I'm through now, and this was the last tournament of the season so if you don't win it's another two months and a lot of time waiting and thinking for the next match.
"You find out a little bit about yourself and how you react to things. You're the one that has to get out of the rut, and I was very aware of that. I've tried very hard not to feel sorry for myself."
Edmund's performance also boosted his chances of making the Great Britain team for the Davis Cup finals next month.
Captain Leon Smith, who was courtside, will choose between Edmund and Cameron Norrie to be his fifth player.
Edmund next faces 14th seed Diego Schwartzman.
Daniil Medvedev crashed out of the Rolex Paris Masters after a surprise second-round defeat to Jeremy Chardy.
Russia's world number four Medvedev was chasing his third straight ATP Tour title, but came unstuck against the Frenchman despite taking the opening set, losing 6-4 2-6 4-6 in just over two hours.
Medvedev had won 29 of his previous 32 matches since last summer's Wimbledon and triumphed at his last two tournaments in St. Petersburg and the Shanghai Masters.
But Chardy, ranked 65 and roared on by a partisan crowd, came storming back after losing the opening set, breaking Medvedev twice in the second and again, decisively, in the seventh game of the decider, to secure a shock win.
Germany's sixth seed Alexander Zverev swept past Spaniard Fernando Verdasco 6-1 6-3 to set up a third-round clash with Denis Shapovalov or Fabio Fognini.
Shapovalov progressed after his first-round opponent Gilles Simon retired at 2-2 in the opening set.
Jan-Lennard Struff knocked out defending champion Karen Khachanov, winning 7-6 (5) 3-6 7-5 in two hours.
Germany's Struff, 29, hit 43 winners against the Russian eighth seed and now faces Italian 10th seed Matteo Berrettini or 2008 tournament winner Jo-Wilfried Tsonga in the third round.
Taylor Fritz won an all-American affair against Frances Tiafoe 7-6 (6) 3-6 6-4 to set up a second-round match with Greece's Stefanos Tsitsipas.
France's lucky loser Corentin Moutet faces world number one Novak Djokovic in the second round after defeating Serbia's Dusan Lajovic 6-4 1-6 6-3.
Bulgarian Grigor Dimitrov came through 4-6 6-1 6-2 against France's Ugo Humbert, Moldova's Radu Albot defeated Italian Andreas Seppi 7-6 (5) 7-6 (6) and Australian Alex De Minaur beat Serbia's Laslo Djere 6-1 6-4.