Isabelle Boffey

Isabelle Sian Boffey
2025 UK Athletics Championships
Personal information
Full nameIsabelle Sian Boffey
Born (2000-04-13) 13 April 2000
Enfield, England[1]
EducationDame Alice Owen's School
University of Birmingham
Sport
CountryGreat Britain
Wales
SportAthletics
Event
800 metres
ClubEnfield & Haringey
Coached byLuke Gunn[2]
Achievements and titles
Highest world ranking19th (800 m)
Personal bests
Medal record
Women's athletics
Representing  Great Britain
European U23 Championships
2021 Tallinn 800 m
European U20 Championships
2019 Borås 800 m
2019 Borås 4x400 m relay
European U18 Championships
2016 Tbilisi 800 m

Isabelle Boffey (born 13 April 2000) is a British middle-distance runner. She was the 2023, 2025 and 2026 British indoor champion in the 800 m and she competed at the 2023 World Championships. Her 800 m personal best of 1:57.43, run indoors, ranks her in the ninth all-time for the indoor 800 m and as the second fastest from Great Britain.

A successful junior, Boffey won gold over 800 m at the 2016 European U18 Championships. In 2019, she won gold over both the 800 m and 4×400 m relay at the 2019 European U20 Championships. At the 2021 European U20 Championships, she won gold over 800 m.

Early life and education

Boffey was born in Enfield, London and attended Dame Alice Owen's School.[3] She graduated with a BSc Biomedical Sciences from the University of Birmingham in 2022.[4]

Career

2021–2024: Early career

A member of Enfield & Haringey athletics club, she was a successful junior athlete and completed a "clean sweep" of gold medals in the 800 metres at each of the three age-grade championships in European Athletics – at the 2021 European Under-23 Championships held in Tallinn, the 2019 European U20 Championships in Borås and the 2016 European U18 Championships in Tbilisi. She was also part of the England Team at the 2017 Commonwealth Youth Games in the Bahamas.[5][6]

She first competed for her country as a senior in the women's 800 metres event at the 2021 European Indoor Championships held in Toruń, Poland, finishing sixth.[7] In February 2022, she won the 1000 metres at the Birmingham Indoor Grand Prix.[8]

In February 2023, as a 22-year-old, she claimed her first national title, winning the 800 m at the British Indoor Championships.[9] She competed at the 2023 European Athletics Indoor Championships, but did not make the final.[10] She set a new personal best for the 800 metres in running 1:59.30 in Madrid on 22 July 2023.[11] She competed for Great Britain at the 2023 World Athletics Championships, in Budapest, Hungary.[12] A grade-two hamstring tear ruled her out of action for the majority of the 2024 season.[10]

2025–present: British indoor champion

She won the women's 800 metres at the inaugural Keely Klassic in Birmingham on 15 February 2025.[13] She won the final of the 800 metres at the 2025 British Indoor Athletics Championships, in Birmingham, having also been the quickest qualifier.[14][15] She was selected for the British team for the European Indoor Championships in Apeldoorn, Netherlands.[16][17] She ran a time of 2:04.28 in her qualifying heat to finish in fourth place and did not progress to the semi-finals.[18]

In May 2025 she opted to compete for Wales, having represented England as a youth athlete. [19] She cited her Welsh mother, who was born and raised in Porthcawl as the reason for the change, with her sights set on representing Wales at the 2026 Commonwealth Games.[19] She was selected to represent Wales for her debut Welsh vest at the 2025 Loughborough International.[20] On 2 August, she qualified for the final of the 800 metres at the 2025 UK Athletics Championships in Birmingham, placing fourth overall in 2:01.68.[21]

On 24 January 2026, Boffey ran an indoor 800 metres personal best of 2:00.14 at the New Balance Indoor Grand Prix, in Boston, Massachusetts.[22] The following week, Boffey lowered her outright personal best by nearly two seconds to move to second on the British all-time indoors list, behind only Keely Hodgkinson, with 1:57.43 to win the 800 m at the John Thomas Terrier Classic in Boston on 30 January, ahead of American champion Roisin Willis and Kenyan Gladys Chepngetich. The time also moved Boffey into the top-ten on the all-time indoors world list.[23][24]

Achievements

Information taken from World Athletics profile unless otherwise noted. Last updated on 6 February 2026.

Personal bests

Event Time Venue Date Notes
400 metres 53.21 Birmingham, United Kingdom 15 May 2024
400 metres indoor 53.39 i London, United Kingdom 9 Feb 2022
800 metres 1:57.43 i Boston, United States 30 Jan 2026 8th all-time and 2nd fastest Brit.
800 metres indoor 1:57.43 i Boston, United States 30 Jan 2026 8th all-time and 2nd fastest Brit.
1000 metres 2:38.25

i

Birmingham, United Kingdom 19 Feb 2022
1000 metres indoor 2:38.25

i

Birmingham, United Kingdom 19 Feb 2022
1500 metres 4:18.39 Manchester, United Kingdom 8 May 2021

National championships and competitions

Year Competition Venue Position Event Time
2015 England Indoor Championships, U17 events Sheffield 1st 800 m 2:12.53
England Championships, U20 events Bedford 2nd 800 m 2:10.30
2016 England Indoor Championships, U17 events Sheffield 1st 800 m 2:06.68
England Championships, U20 events Bedford 1st 800 m 2:06.90
England Championships, U17 events Bedford 2nd 800 m 2:05.68
2017 England Indoor Championships, U20 events Sheffield 1st 800 m 2:07.57
England Championships, U20 events Bedford 1st 800 m 2:05.87
2018 England Championships, U20 events Bedford 2nd 800 m 2:05.24
2019 British Indoor Championships Birmingham 4th 800 m 2:05.84
British Championships Birmingham 4th 800 m 2:03.11
2020 British Championships Manchester 2nd 800 m 2:04.73
2021 British Indoor Championships Event cancelled due to the COVID-19 pandemic
British Championships Manchester 7th 800 m 2:04.81
2023 British Indoor Championships Birmingham 1st 800 m 2:03.27
British Championships Manchester 5th 800 m 2:02.28
2024 British Indoor Championships Birmingham 2nd 800 m 2:00.27
2025 British Indoor Championships Birmingham 1st 800 m 2:04.24
British Championships Manchester 4th 800 m 2:01.68
2026 British Indoor Championships Birmingham 1st 800 m 1:59.64

References

  1. ^ "Isabelle Boffey – Profile". British Athletics. Retrieved 13 March 2022.
  2. ^ "World Indoor Athletics Championships 2026 - Preview". Welsh Athletics. 19 March 2026. Retrieved 19 March 2026.
  3. ^ JMSSERVICES-ADMIN (3 August 2022). "PE | Dame Alice Owen's School". Retrieved 6 February 2026.
  4. ^ Henderson, Jason (31 January 2026). "Issy Boffey goes No.2 on UK indoor all-time 800m rankings - Athletics Weekly". athleticsweekly.com. Retrieved 6 February 2026.
  5. ^ "Issy Boffey reflects on the 2017 Commonwealth Youth Games". England Athletics. 9 August 2023. Retrieved 15 April 2025.
  6. ^ "BOFFEY COMPLETES CLEAN SWEEP OF EUROPEAN AGE GROUP 800M TITLES". British Athletics. 10 July 2021.
  7. ^ "Heats results" (PDF). Archived from the original (PDF) on 5 March 2021. Retrieved 7 March 2021.
  8. ^ Rowbottom, Mike (19 February 2022). "Duplantis misses world record by whisker in Birmingham as Hodgkinson excels". Inside the Games. Retrieved 21 February 2022.
  9. ^ "Baker breaks championship record to win 1500m gold". BBC Sport. 19 February 2023. Retrieved 19 February 2023.
  10. ^ a b Rhodes, James (5 March 2025). "A Happy Return – Issy Boffey's Indoor Season". Fast Running.
  11. ^ Smythe, Steve (25 July 2023). "World qualifiers in Europe for Isabelle Boffey and Ama Pipi". Athletics Weekly. Retrieved 15 April 2025.
  12. ^ "World Athletics Championships, Budapest 2023". World Athletics. 19 August 2023. Retrieved 15 April 2025.
  13. ^ Henderson, Jason (15 February 2025). "British records fall at the Keely Klassic". Athletics Weekly. Retrieved 15 February 2025.
  14. ^ "WILLIAMS AND AZU CLAIM 60M TITLES IN BIRMINGHAM". British Athletics. 22 February 2025. Retrieved 22 February 2025.
  15. ^ Adams, Tim (22 February 2025). "Azu and Williams storm to scintillating 60m titles". Athletics Weekly. Retrieved 24 February 2025.
  16. ^ "GB & NI Team Selected for the European Indoor Championships 2025". British Athletics. 26 February 2025. Retrieved 26 February 2025.
  17. ^ Henderson, Jason (26 February 2025). "Molly Caudery leads British team for European Indoor Champs". Athletics Weekly. Retrieved 26 February 2025.
  18. ^ "European Indoor Championships". World Athletics. 6 March 2025. Retrieved 12 April 2025.
  19. ^ a b Morgan, Owen (17 May 2025). "Track Transfer . . . Isabelle Boffey Moves From England To Wales". Dragon Sports.
  20. ^ "Loughborough International 2025 - Preview". Welsh Athletics. 15 May 2025. Retrieved 16 May 2025.
  21. ^ "UK Championship". World Athletics. 2 August 2025. Retrieved 2 August 2025.
  22. ^ "Hoey breaks world 800m short track record with 1:42.50 in Boston". World Athletics. 24 January 2026. Retrieved 25 January 2026.
  23. ^ Mills, Steven (31 January 2026). "Second fastest Brit in history! Boffey blazes to a 1:57.43 800m in Boston". European Athletics.
  24. ^ "Boffey runs second fastest indoor 800m by Briton". BBC Sport. 31 January 2026. Retrieved 31 January 2026.
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