My Sister and I always planned to run a marathon together.

In September, we will.


We are excited to share that we have received approval from the Middlesex-London Health Unit and the City of London to officially host the event! We have added new social distancing guidelines to help keep the DUNN with Cancer run safe during Covid-19. To learn more, visit our full list of Covid-19 rules. 



Life has a way of turning your world upside down when you least expect it. This was the case for my family on February 18th, 2020. Just after 3pm I received a phone call from my sister, Allison, and assumed she was calling to catch up after us not being able to chat for a few weeks. After all, we come from a family of type-As who tend to lead lives that are just a little bit too busy. Quick hellos, while a luxury, did not happen as frequent as we would like.

They found a tumour in my brain.

Those are the only words I remember from our phone call. My world just stopped when I heard my sister say this. It wasn’t a flood of tears or a feeling of sadness. It was closer to a state of numbness. I remember telling her that I love her, hanging up and sitting in an empty meeting room at my office for what felt like an hour. I made an emotionless call to my fiancée, then took a long walk home. Half way home, with the gravity of the situation barely sinking in, I found a park bench, sat down and cried.

Before continuing, it is worth describing who Allison is (for those that know her, you understand no words could fully do her justice). It would be easy to describe her as a 33 year old who balances her life between raising three young kids (5, 3 and 1) while working at a successful not-for-profit and volunteering on the side. It would also be easy to describe her passion, confidence, sense of life, hell – even her fighter mentality (many times at my expense). But none of that fully portrays how special of a person Allison truly is.

Allison is genuinely the most compassionate person I know. She is the person who, at 10, brought a 1-800# and binder full of information to our mom about sponsoring African children after seeing their living conditions on TV. She is the person who, at 21, moved halfway around the world to Varanasi, India and lived without running water so she could teach impoverished women how to read. She is the person who pushed me to be the best version of myself – and she was the reason I discovered our shared passion of running. She actually forced me to join our high school cross-country team through a week-long bombardment that ended in me caving in to join for ‘one practice’ (a classic example of her fighter mentality). 

She is a person who doesn’t deserve this draw in life. She is a person who shouldn’t get terminal brain cancer.

Unfortunately this is what she was dealt, and what started as a wide range of hopeful possibilities quickly became a series of worst-case outcomes. The tumor, which was discovered on the Tuesday was confirmed to be cancer on the Thursday. At the same time, the tumour was confirmed to be where the brain meets the brainstem, an area of the brain that is inoperable. A biopsy was scheduled for the following Wednesday that lasted for nearly 7 long hours, 3 of which were for a shunt to be placed in her brain that would help drain fluid forming around the tumor. While the operation was successful, the results of the biopsy were devastating. 

Grade 4. 

For the first time the realization slowly crept in that Allison, our fighter, was losing her hardest fight yet. In a span of 2 weeks Allison went from complaining of a headache while on a hike with her family to being told the average person with her form of cancer lives for 18 months.

Even after her 18 month diagnosis, the Cancer proved to be more aggressive than anyone initially anticipated. Symptoms came quickly and included memory loss, lack of mobility, difficulty speaking and a decline in her cognitive abilities. And when 6 weeks of chemotherapy and radiation treatment had minimal impact on her symptoms, Allison passed away peacefully 6 weeks after that, on June 17th, 2020.

Essentially, cancer is a bitch.


I’m not sharing this story to look for sympathy or to vent my anger. This isn’t about me. I’m sharing this story because no 33 year-old mother of 3 should be diagnosed with terminal brain cancer. A husband should not become a widower while others his age are planning weddings. Three children, the youngest who is 1, shouldn’t have to grow up not knowing their mother.

Together, we can beat cancer and prevent other families from this same fate. This is why I am asking for all of your support in helping to raise money for brain cancer research as I run the That Dam Hill 24 hour ultra-marathon. 

Why a marathon? Back to our shared passion of running, Allison and I always planned on running her first marathon side-by-side. We mentioned this first as a pipe-dream back in high school, but have since run races together and, during marathons that I have completed, Allison has always been the loudest member of my cheering section. After these races, we talked in length about the future marathon that we planned to complete together. 

So, while she won’t physically be with me at the finish line, Allison will be running every step of the way in spirit. Finally, this is the marathon that we will get our chance to run together.

So join us in supporting Allison and let’s work together to raise money for brain cancer research.

In Memory of Allison Dunn: Race to Beat Brain Cancer


Meet The Runners

Allison is not alone in her fight. Together, we are running with Allison to raise money for brain cancer research. 

Brian Dunn (brother)

Greg Boyd (husband)

Matt Trinnear (brother-in-law)

Penelope Trinnear (niece)

Punit Sthankiya

Jenna Hubbert

Kirby Palmer

Garett Turcott

Martha Wilson

Kristen House

Lauren Stief

Laura Berton

Darlene MacKenzie

Jaclyn Pisarczyk

Katya Dunn

Aabir Dey

Andrea Cross

Karen & Brent Stief

Kathryn Ellett

Nicole Hackney


That Dam Hill will take place in Springbank Park, London, ON on September 19th, 2020. As the Covid-19 situation continues to be fluid, we have implemented the following safety measures to ensure we are adhering to social distancing guidelines:

There will be 5km Run/Walks at 2pm and 4pm in memory of Allison (at no cost), in addition to a spectator BBQ. We require you to sign up for these runs or if you will be a spectator, as all runs will be capped at 80 participants to ensure we adhere to social distancing guidelines. You can sign up for these runs here.

Timed races are available, which you can sign up through the That Dam Hill website. The timed races include:

- Half marathon, marathon (relay), 24 hour (relay) all starting in the morning (staggered starts)

- 5km race starting at 3pm

These races will also be capped at 80 participants, so please ensure you sign up through the That Dam Hill website.

Upcoming Events

do you want to run with Allison? 

We encourage anyone that would like to join the team to reach out. The That Dam Hill race is a 2.25km looped course, so you can choose to run just one loop, multiple or sign up for one of the official races.



To make a donation to the DUNN with Cancer Research Fun​d, click on the link below. Tax receipts will be available for any personal and most corporate donations.

You can also create your own personal or team pledge sheet, to help fundraiser for DUNN with Cancer.


Sponsorships will be welcomed and available. Please reach out if you are interested.