Callum Thornley

Callum Thornley is a Scottish road cyclist who competes for Great Britain. He was born on 5 August 2003 in Edinburgh and comes from Peebles in the Scottish Borders. He is 1.90 m tall and weighs 76 kg, according to ProCyclingStats. He rides for Red Bull–BORA–hansgrohe, moving up to the WorldTeam in 2026 after a year in the team’s Rookies squad.

Thornley started mountain biking at the age of eight and raced at Glentress as a young rider. He raced on the road for the first time at 16, having been interested in road cycling since watching the Tour de France in the mountains on a family holiday in France as a child. In 2019 he won a stage and finished second overall at the Youth Tour of Errigal in Ireland. In 2022 he was second in the under-23 time trial at the British national championships while riding for Wheelbase CabTech Castelli, and in 2023 he joined Trinity Racing. That year he took 14th place in the under-23 time trial at the world championships in Glasgow.

In 2024 he was tenth at Paris–Roubaix Espoirs. At the Giro Next Gen he finished 56th overall, with fifth place in the stage 1 time trial and second place on stage 7. He won the mountains classification at the Tour of Britain after strong rides on the first two stages, the first of which was held on roads in the Scottish Borders. He was also selected for the under-23 road race at the world championships in Zurich.

In 2025 he won the British under-23 time trial title and was second in the under-23 road race. He won the Piccolo Giro di Lombardia, took the points classification and the stage 4 time trial at the Sibiu Cycling Tour, finished third overall at the Istrian Spring Tour and tenth at the Giro Next Gen, and was fifth in the under-23 time trial at the world championships.

The 2026 season brought his Grand Tour debut at the Vuelta a España. He was fourth in the opening time trial in Monaco on 22 August and held the mountains jersey after stage 1. He then took second place in the stage 18 time trial, two seconds behind Stefan Küng, and finished the race 128th. He was tenth in the world championship time trial in Montréal and ninth in the time trial at the European Championships.