Isla Lough was just 13 when her family received news that no parent wants to hear. She had cancer. At an age when most children are busy with school, friends and hobbies, Isla was facing hospital visits and chemotherapy. Five years later, she was running through the streets of London, determined to finish a marathon and raise money for children going through similar experiences.
Born on 17 January 2007, Isla Lough is the daughter of British marathon legend Paula Radcliffe and former athlete Gary Lough. She grew up in Monaco with her younger brother, Raphael. Running had always been part of her family’s life, but her decision to complete the 2025 London Marathon was about something much more personal than sport.
At 19 years old in 2026, Isla is known for surviving a rare form of ovarian cancer, supporting Children with Cancer UK and completing her first marathon. Her story has attracted attention because of what she experienced as a teenager and what she has chosen to do since.
Quick Bio
| Field | Details |
|---|---|
| Full Name | Isla Lough |
| Date of Birth | 17 January 2007 |
| Age (2026) | 19 Years Old |
| Birthplace | Monaco |
| Nationality | British |
| Profession | Runner and Charity Ambassador |
| Famous For | Cancer Recovery and London Marathon 2025 |
| Father’s Name | Gary Lough |
| Mother’s Name | Paula Radcliffe |
| Siblings | Raphael Lough (Younger Brother) |
| Health Journey | Ovarian Cancer Survivor |
| Cancer Diagnosis | August 2020, Aged 13 |
| Major Achievement | Completed London Marathon in April 2025 |
| Charity Association | Children with Cancer UK (Junior Ambassador) |
Who Is Isla Lough?
Isla Lough is a British marathon participant and childhood cancer survivor. Her mother, Paula Radcliffe, held the women’s marathon world record for more than 16 years, while her father, Gary Lough, represented Britain as a middle-distance runner.
For much of her childhood, Isla was known mainly through her parents. She occasionally appeared alongside her mother at sporting events, but she was not someone who regularly sought public attention.
That changed when her family began speaking about her cancer diagnosis. People who had followed Paula’s running career learned about the difficulties her daughter had faced. Interest in Isla grew again in April 2025, when she completed the London Marathon at 18.
Early Life and Childhood in Monaco
Isla Lough was born in Monaco on 17 January 2007. Her birth was covered by sporting publications because Paula Radcliffe was already one of the biggest names in long-distance running. Three years later, the family welcomed Isla’s younger brother, Raphael.
Growing up with two athletic parents meant sport was familiar to Isla from an early age. Her mother spent years travelling for races and training, while her father worked closely with professional athletes.
Still, Isla’s childhood was not simply about running. Her parents largely protected their children’s everyday lives from public attention. Details about her schooling and childhood friendships have remained mostly within the family.
Unlike many children of famous sportspeople, Isla did not become widely known through a professional athletic career. Her own public story developed later, following an unexpected health crisis.
Paula Radcliffe and Her Influence on Isla
It is difficult to talk about Isla Lough without mentioning her mother. Paula Radcliffe is one of the most respected distance runners in British sporting history. She won the London Marathon three times and set a women’s world record in 2003, finishing in 2 hours, 15 minutes and 25 seconds.
For Isla, Paula was more than a famous athlete. She was her mother, someone who understood the importance of effort, patience and dealing with setbacks.
Those lessons became particularly meaningful when Isla faced serious illness. Although Paula had experienced difficult moments during her own sporting career, seeing her daughter undergo cancer treatment was an entirely different challenge.
Years later, when Isla prepared for her first London Marathon, her mother’s connection with the event added special meaning to the occasion.
Isla Lough’s Cancer Diagnosis at Age 13
In August 2020, Isla Lough was diagnosed with a rare germ cell ovarian cancer. She was only 13 years old, and the diagnosis came during the COVID-19 pandemic.
Before doctors discovered the illness, Isla had experienced symptoms that included stomach pain and breathing difficulties. Some symptoms initially appeared similar to changes that can occur during adolescence. Further medical examinations revealed a tumour that required treatment.
For the family, the news was frightening. Isla was still a young teenager, and suddenly her daily life involved medical appointments, hospital care and chemotherapy.
She underwent intensive treatment at a time when pandemic restrictions made normal routines even harder. Her parents had to support her through the physical demands of treatment while also dealing with their own worries.
Paula later spoke about how difficult it was to watch her daughter experience something so serious. The family had faced sporting disappointments before, but nothing compared with the uncertainty surrounding Isla’s health.
Cancer Treatment and Recovery
Chemotherapy became an important part of Isla’s treatment. It was a demanding period, especially for someone so young. Alongside the physical effects of treatment, there were the ordinary things she was missing while other children continued growing up around her.
After completing treatment, Isla was eventually given the all-clear. It was welcome news for her family after months of uncertainty.
Recovery did not mean that the experience simply disappeared from her life. Cancer can affect how young people think about their health, their plans and their future. Isla’s later involvement in charity work suggests that helping other children became an important part of what she wanted to do.
Her family has not shared every medical detail publicly. What is known is that Isla recovered sufficiently to return to an active lifestyle and eventually take on a challenge that many healthy adults find difficult.
How Isla Lough Became Interested in Marathon Running
Running was already familiar to Isla because of her parents, but preparing for a marathon is different from simply growing up around the sport.
A marathon covers 26.2 miles, or 42.2 kilometres. Completing that distance requires preparation, endurance and the ability to keep going when the body becomes tired.
For Isla, entering the London Marathon carried an additional meaning. She had experienced cancer treatment only a few years earlier, and she wanted to use the event to support other young people dealing with the disease.
Her decision was not about matching Paula Radcliffe’s famous records. Instead, it gave her a chance to set a personal goal while helping a charity connected to her own experience.
Completing the London Marathon in 2025
On 27 April 2025, Isla Lough took part in the London Marathon for the first time. She was 18 years old and running to support Children with Cancer UK.
The event brought thousands of runners onto London’s streets, including professional athletes and people raising money for causes close to their hearts.
For Isla, reaching the finish line was a significant moment. She had gone from receiving cancer treatment as a teenager to completing one of the world’s most recognised marathons.
Her mother was working on the BBC’s coverage of the event and followed her daughter’s progress with great interest. When Isla reached the final part of the race, Paula shared her excitement and pride.
The moment received widespread attention, but the most important part was Isla’s achievement itself. She had finished a demanding race while helping bring attention to childhood cancer.
A Special Moment for Paula Radcliffe
Paula Radcliffe has crossed some of the most famous finish lines in athletics. Yet watching her daughter finish the 2025 London Marathon was a different kind of experience.
This time, Paula was not the athlete chasing a result. She was a mother watching her child complete something that had taken on personal meaning for their family.
After Isla’s illness in 2020, seeing her healthy enough to finish a marathon was understandably emotional.
The occasion also showed a different side of Paula’s life. She may be remembered for world records and marathon victories, but her daughter’s achievement was something she could celebrate simply as a proud parent.
Isla Lough’s Work With Children with Cancer UK
Following her treatment, Isla became involved with Children with Cancer UK, a British charity that supports research and families affected by childhood cancer.
She serves as a Junior Ambassador for the organisation. Paula Radcliffe is also an ambassador and has spoken openly about how Isla’s diagnosis affected the family.
The charity works to improve outcomes for children with cancer, fund research and provide support during difficult periods.
Isla’s involvement matters because she has experienced childhood cancer herself. She understands how suddenly life can change after a diagnosis and why families need support.
Running the London Marathon gave her another opportunity to draw attention to the charity’s work. Rather than making her experience the end of the story, she has used it as a reason to support others.
Isla Lough’s Life in 2026
As of October 2026, Isla Lough is 19 years old. She has become publicly recognised for her recovery, her London Marathon achievement and her involvement with Children with Cancer UK.
Although she comes from a famous sporting family, Isla has not announced a professional athletics career. Her future education and work plans have not been widely discussed in reliable public reports.
She continues to be associated with a story that means a great deal to families affected by childhood cancer. Her marathon finish attracted attention, but it is her personal experience and charitable purpose that make the achievement especially meaningful.
At her age, there is still plenty of time to decide what comes next.
Why Isla Lough’s Story Matters
Isla’s story stands out because it brings together two very different parts of her young life. In 2020, she was a teenager undergoing treatment for a serious illness. In 2025, she was crossing the London Marathon finish line.
Not every cancer survivor will be able to complete a marathon, and recovery looks different for everyone. Isla’s experience should not be seen as a standard that other patients must meet.
Instead, it shows how someone can find a personal goal after a difficult period and use that achievement to support people facing similar challenges.
For Isla, the marathon was a sporting milestone. For the families following her story, it was also a reminder of why childhood cancer research and support remain so important.
Conclusion
Isla Lough is more than the daughter of Paula Radcliffe and Gary Lough. She has experienced a serious illness at a young age, completed cancer treatment and gone on to achieve something meaningful through running.
Her decision to finish the 2025 London Marathon in support of Children with Cancer UK introduced her story to people around the world. It also gave her an opportunity to help young patients and families affected by cancer.
At 19, Isla is still finding her own direction. Whatever she chooses to do in the years ahead, her recovery and charity work have already become an important part of her story.
(FAQs)
Who is Isla Lough?
Isla Lough is a British runner, cancer survivor and Junior Ambassador for Children with Cancer UK. She is also the daughter of famous marathon runner Paula Radcliffe and former athlete Gary Lough.
How old is Isla Lough in 2026?
Isla Lough is 19 years old as of October 2026. She was born on 17 January 2007 in Monaco.
What cancer did Isla Lough have?
Isla was diagnosed with a rare form of ovarian germ cell cancer in August 2020, when she was 13 years old. She underwent chemotherapy and later recovered.
Did Isla Lough finish the London Marathon?
Yes. Isla completed her first London Marathon on 27 April 2025, at the age of 18. She ran to support Children with Cancer UK.
Who are Isla Lough’s parents?
Her mother is Paula Radcliffe, the former women’s marathon world-record holder. Her father is Gary Lough, a former international middle-distance runner. Isla also has a younger brother named Raphael.
