Born in Lydford-on-Fosse, Somerset on November 5, 1998, Harry Cobden excelled at pony racing before graduating to point-to-points, winning the novice men’s title in that sphere in 2014/15. He rode his first winner under Rules, El Mondo, trained by Rachael Honeyball (née Green), in a hunters’ chase at Leicester on March 6, 2015. After two winners from three rides in 2014/15, the other one being Ulck Du Lin, trained by Paul Nicholls, in a handicap chase at Wincanton on April 19, 2015, Cobden became conditional jockey to Nicholls at Manor Farm Stables in Ditcheat, Somerset at the start of the 2015/16 season.
Cobden increased his seasonal tally to 30 winners in 2015/16 and, again, to 63 winners in 2016/17, including his first Grade 1 winner, Irving, trained by Nicholls, in the Fighting Fifth Hurdle at Newcastle on November 16, 2016. He rode our his claim on Diego Du Charmil, also trained by Nicholls, in the Scottish County Hurdle on February 4, 2017 and, to the surprise of no-one, was crowned champion conditional jockey at the end of the 2016/17.
By his own admission, “things did go a bit quiet” thereafter, but Cobden still managed to ride a then career-best 76 winners in 2017/18. His seasonal tally included his first Cheltenham Festival winner, Kilbricken Storm, trained by Colin Tizzard, in the Albert Bartlett Novices’ Hurdle on March 16, 2018. Towards the end of the season, Cobden was offered the job as stable jockey to both Nicholls and Tizzard, but opted for the former, with whose yard he had been associated since his early teens.
On June 1, 2018, Cobden walked away after being unseated by Mick Thonic, trained by Tizzard, at the final fence in a handicap chase at Market Rasen, but was later hospitalised and found to have suffered a fracture of the C2 vertebra in his neck. He spent eight weeks in a neck brace and four months out altogether, thereby missing the summer jumps campaign. Nevertheless, the 2018/19 season yielded 109 winners, four of which were at Grade 1 level, all for Nicholls, including Clan Des Obeaux in the King George VI Chase at Kempton on Boxing Day.
Fast forward to 2023/24 and Cobden rode 164 winners, becoming Champion Jockey for the first time. On October 14, 2025, he reached the milestone of 1,000 career winners on Indemnity, trained by Emma Lavelle, in a handicap hurdle at Market Rasen. The following January, it was announced that he would officially become the retained jockey for leading owner John McManus, in Britain and Ireland, from the start of the 2026/27 National Hunt season.