[3] On July 29, 2016, he played his first professional match with Racing Club de Lens on the field of Chamois Niortais FC.

[citation needed] He caught attention in the match against Stade de Reims (1-1, 12th round of Ligue 2) by delivering an assist to Viktor Klonaridis.

During the 2017-2018 Ligue 2 season, he benefited from the arrival of Éric Sikora, who knew him well from his time in the reserve team, to establish himself in the starting eleven.

He regained it towards the end of the season, scoring consecutively in the last two rounds of the championship—a goal against AC Ajaccio and then a double against US Orléans—to secure Racing's place in the promotion playoffs for Ligue 1.

[5] On 23 September 2023, in only his second appearance for his new club away to Luton Town in the Premier League, Bellegarde was shown a straight red card in the 39th minute for his reaction to a challenge by Tom Lockyer.