Two-Time Cancer Survivor

Run Cass Run50km for Hope

50km along the stunning Welsh coastline. 1,800 women. One mission: to raise funds for the cancer charities that save lives.

Race Day Countdown

Days

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Donate Now About the Run

Cass Brownlow Davies at the London Marathon, smiling with hand to camera

Cass at the London Marathon, now taking on 50km

Why This Matters

Running for Those Who Can't

Every year, cancer takes too much from too many. The charities fighting it, funding research, supporting survivors, caring for families, rely on people willing to go the extra mile. Literally.

On 11 April 2026, Cass will line up alongside 1,800 women at She Ultra in Pwllheli, North Wales, for 50 kilometres along the stunning Llyn Peninsula coastline. As a two-time cancer survivor, she knows what these charities mean and she's running to give back.

Cass running in a Cancer Research UK race — Cass running for Cancer Research UK

Every donation funds the fight against cancer. Every share spreads the word.

The Event

She Ultra 2026

The world's largest all-female ultra marathon where hope, strength, and community unite. No cut-offs, only smiles. Founded by Huw Williams, a terminally ill cancer patient who turned his diagnosis into a mission to raise £1 million for women's cancer charities.

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11 April 2026

Saturday, Race Day

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Pwllheli

North Wales, Llyn Peninsula

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50 Kilometres

Coastal path ultra marathon

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1,800 Women

Sold out, running together

Learn More About She Ultra

Race Day · 11 April 2026

Out on the Course

She did it. 50km of Llyn Peninsula coastline, 1,800 women, one finish line.

Cass crossing the She Ultra finish line, bib 1460, RNLI station in the background — Cass crosses the finish line — bib 1460, 50km done. She did it. 🎉

Panoramic view from the mountain summit — Llyn Peninsula stretching to the horizon — Spectating from the summit — the whole Llyn Peninsula laid out below

Cass smiling on the course with wind in her hair and the Welsh hills behind her — That smile says everything — wind and all

Cass (bib 1460) and Michelle (bib 1192) smiling at a Welsh harbour checkpoint — Cass and Michelle at the harbour — bib 1460, still smiling

Cass running on a wet Welsh lane, waving to the camera — Waving at the camera on a wet Welsh lane

Cass and a running partner passing Jack's Burger in the sunshine — A sunny stretch past Jack's Burger — the weather did relent, briefly

Runners on the She Ultra course on the Llyn Peninsula hillside — Up on the hillside — the course doesn't spare the legs

Sydney and Dexter watching runners stream past on the beach — Sydney and Dexter on the beach — waiting for Mum

Sydney the chocolate lab racing through the waves — Sydney making the most of the Welsh coast while he waits

Julian at the trig point on the summit, Welsh coastline behind him — The support crew — trig point summit, Llyn Peninsula below

Race Day · 11 April 2026

Track Cass Live

Follow every kilometre of Cass's 50km run in real time using the official She Ultra live tracker. Search for her bib number to find her on the map.

1460

Cass's bib number
Open Live Tracker ↗

Opens in a new tab · Search for bib 1460 · Live updates on race day

Race Day Forecast · Abersoch · 11 April 2026

Wild Welsh Weather

Cold, blustery, and showery — the Llyn Peninsula in full April form. A wet start gives way to brighter spells by afternoon, with the wind building all day. Exactly the backdrop this run deserves.

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Morning Start

Showers

Rain at the start line, easing to drizzle through mid-morning

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Temperature

4–9°C

Coldest at the start, feels like 4°C — layers essential

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Wind

Up to 31 mph

Building through the day — breezy at the start, strong by the afternoon

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Afternoon

Brightening

Sunny spells from midday, with some sprinkles — the best of the day

Source: timeanddate.com forecast for Abersoch · Updated 10 April 2026. 50km of wild Welsh coastline in whatever the sky throws at them — 1,800 women will cross that finish line.

The Cause

Two Charities, One Mission

Every penny raised goes directly to organisations fighting cancer and supporting survivors. Cass is fundraising for two causes close to her heart.

Hodgkin's International

Hodgkin Lymphoma is highly curable, but the treatments can cause serious long-term health consequences that many survivors don't know about. Hodgkin's International connects survivors worldwide, educates them on late effects, funds research into long-term survivorship care, and ensures no one faces the aftermath alone.

A survivor-led charity, built by the people who understand it best.

Donate Now Learn more about Hodgkin's International

She Ultra Cancer Charities

She Ultra channels funds to over 15 women's cancer charities: Breast Cancer Now, The Eve Appeal, Maggie's, Marie Curie, Ovarian Action, Bowel Babe, Black Women Rising, and more. They also fund comfort packs for women leaving treatment, free books for children whose parents have cancer, and travel grants for those attending treatment.

Every medal is given at the start line, carried in honour of those lost and those still fighting.

Donate Now