Callum Thornley

Callum Thornley (born 5 August 2003) is a Scottish cyclist, who currently rides for UCI WorldTour team Red Bull–Bora–Hansgrohe.

Early life Thornley is from Peebles in the Scottish Borders. He started mountain-biking at the age of eight and competed at Glentress as a youngster in races organised by Peebles Cycling Club. He raced on the road for the first time as a 16 year-old, but has been interested in road cycling since a family holiday to France as a child enabled him to watch the Tour de France live in the mountains. He's often referred to in close circles as ‘Big Cal’.

Career He was a stage winner and second overall at the Youth Tour of Errigal in Ireland in 2019. That year, he also competed in the Scottish National Madison Championships, and won the silver medal in the boys' Madison alongside Alexander Gibb.

Thornley finished second in the under-23 time-trial at the British National Time Trial Championships in Dumfries in June 2022. That year, he was riding for Wheelbase CabTech Castelli, before signing for Trinity Racing for 2023.

In 2023, he was selected by the British team to compete in the under-23 time trial at the 2023 UCI Road World Championships in Glasgow. He finished in fourteenth place.

In April 2024, Thornley finished tenth at the Paris–Roubaix Espoirs. He raced in the Giro d'Italia Next Gen, finishing fifth in the stage one time-trial and second on stage seven. He finished ninth in the Points Classification and 11th in the Mountains Classification, and 56th overall. He was selected to ride the Tour of Britain in September, the first stage of which took place on home roads in the Scottish Borders. Thornley comfortably won the Mountains Classification after strong rides on stages one and two.

On 17 September 2024 it was announced that Thornley would represent Great Britain in the under-23 men's road race at the 2024 UCI Road World Championships in Zurich.

In June 2025, he won the men's U23 race at the British National Time Trial Championships.

Major results

2022 2nd Time trial, National Under-23 Road Championships 2024 1st Mountains classification, Tour of Britain 9th Ronde van de Achterhoek 10th Paris–Roubaix Espoirs 2025 (1 pro win) National Under-23 Road Championships 1st Time trial 2nd Road race 1st Piccolo Giro di Lombardia Sibiu Cycling Tour 1st Points classification 1st Stage 4 (ITT) 3rd Overall Istrian Spring Tour 4th Poreč Trophy 5th Time trial, UCI Road World Under-23 Championships 10th Overall Giro Next Gen 2026 Vuelta a España Held after Stage 1