During the Covid-19 pandemic, Ashman won the Southwest Brass Band Association's under 18 percussion and open percussion classes,[9] best percussionist in the 2020 Online Salford Solo Contest,[10] the most promising player in the 2020-2021 Southern Percussion International Tuned Competition,[11] the percussion category of the Foden's Online Solo Competition,[12] and the Davison Young Musicians, Patron's Award.[13][14] On winning the Davison Young Musician’s Patron’s Award Commodore Duncan Lustig-Prean said "I selected Jordan because of the sheer artistry of his performance. His dynamic range was astonishing, showing considerable musicality. He displayed a maturity of interpretation well beyond his years and I look forward to his musical career with great enthusiasm".
Ashman has performed extensively with Youth Brass 2000 who, in 2022 became UK National Youth Champions for the seventh year in a row.[15]
He joined The GUS Band in 2018[16][17] aged just 14, and is also a member of Junior Prime Brass, a 10-piece brass ensemble plus percussion, based in Cambridge.[18]