Irwin made her British debut in June 2022 at the European 10,000m Cup, where the British team came home with a bronze medal. Prior to that, Irwin had run a new personal best and set a new Northern Ireland record of 32:25.34 for the 10,000m competing at the Night of the 10,000m PBs at
Parliament Hill in May 2022. In June 2022 Irwin set a new
5000m personal best of 15:45.87 at the Woodside Stadium in
Watford. Irwin was selected as path of the Northern Ireland squad for the
2022 Commonwealth Games held in
Birmingham, England. However, she did not finish the 10,000m race at the event. She was later diagnosed with a metatarsal fracture which prevented her competing for several months. In August 2023, she broke the Northern Irish national record for the
half marathon, running 1:11:05 in
County Antrim. She was selected for the Half Marathon race at the
2025 European Running Championships in April 2025 in
Leuven, Belgium. Competing at the championships on 12 April 2025, she finished in sixteenth place in a time of 73:54. On 31 December 2025, Irwin ran a 15:27 personal best on the road at the Battersea 5K, placing second. Competing in Valencia on 11 January 2026, Irwin lowered the Northern Ireland record for the 10km, with a time of 31:32. == References ==