[3] In 2015, at only ten years of age, Roberts redpointed the historic 8a (5.13b) graded British sport climbing route, Raindogs, at Malham Cove in North Yorkshire.

[5] In 2020, aged 15, Roberts became the youngest British climber to climb a 9a (5.14d) graded sport route when he redpointed Steve McClure's Rainshadow, also at Malham Cove.

[6][7] Roberts first started competing in international youth competition climbing events in 2019.

In May 2023, Roberts won his first World Cup medal in bouldering with a third-place finish in Salt Lake City.

He went on to win his first World Cup gold medal in bouldering with a victory in Brixen in June 2023 followed by his first World Cup gold medal in lead climbing with a victory in Chamonix in July 2023, becoming the first British climber to win a gold medal in both the bouldering and lead climbing disciplines.