Cynthia O’Halloran

Cancer is the largest killer of kids in Canada, 27 children are diagnosed every week. Please donate now and support my challenge to fight kids' cancer!

Donate Now

I've Ridden 499.1 km My goal is 500 km

My Rankings

National: 2528th
Province: 1379th in ON

I've raised $664 to fight kids' cancer Donate Now

I'm Riding For

the children and families coping with cancer

My Story

12 Aug 2026

Seventeen years ago, we received a phone call from OTMH. “We have your son’s scan results and the doctor wants to send you to SickKids tonight…… Bring a bag to stay overnight…… Yes, you can stay with him.” My body trembled. For a few previous weeks, I felt that Robert’s headaches and nausea were caused by a brain tumour; that phone call more or less confirmed it. The next day, he had an MRI and was prepped for surgery. Less than 48 hours later, the tumour was removed. We spent the next 10 years in and out of SickKids Toronto for MRIs and visits with doctors; Robert was always clear. He was one of the lucky ones.

For the second year, I am taking part in the Great Cycle Challenge to fight kids’ cancer. My family is grateful for the support that we had; we want to do our part to make sure it is there for others.

Thank you.

My Legacy

Here's my personal impact over 5 years to fight kids' cancer and save little lives.

1,120 km Ridden

$2,395 Raised

2022
834 km Ridden

$1,112 Raised

2023
1,324 km Ridden

$1,300 Raised

2024
1,232 km Ridden

$1,603 Raised

2025
499 km Ridden

$664 Raised

2026

5,010 km

Ridden

$7,074

Raised

My Challenge

36.2 km ride - Zwift - TriDot: 2026-08-25 Threshold Intervals - Tuesday, August 25, 2026

Logged this ride 2 days ago - View on Strava
34.3 km ride - Zwift - Triple Flat Loops in Watopia - Sunday, August 23, 2026

Logged this ride 4 days ago - View on Strava
21.0 km ride - Zwift - Crêpe Escape in Paris - Sunday, August 23, 2026

Logged this ride 4 days ago - View on Strava
11.1 km ride - Zwift - Flat Route in Watopia - Sunday, August 23, 2026

Logged this ride 4 days ago - View on Strava
42.9 km ride - Zwift - TriDot: 2026-08-20 Threshold Intervals - Thursday, August 20, 2026

Logged this ride 7 days ago - View on Strava
31.7 km ride - Zwift - TriDot: 2026-08-18 Threshold Intervals - Tuesday, August 18, 2026

Logged this ride 9 days ago - View on Strava
25.7 km ride - Zwift - Hell of the North in France - Monday, August 17, 2026

Logged this ride 10 days ago - View on Strava
24.2 km ride - Zwift - Casse-Pattes in France - Monday, August 17, 2026

Logged this ride 10 days ago - View on Strava
$500 raised to fight kids' cancer!

I just raised $500 to fight kids' cancer and achieved GUARDIAN LEVEL in the challenge! Thank you so much for your support.

Posted 13 days ago
43.5 km ride - Zwift - TriDot: 2026-08-13 Easy Ride - Thursday, August 13, 2026

Logged this ride 14 days ago - View on Strava

My Sponsors

Carlie

“Such a great cause! Best of luck!”
$207
Received this donation 15 days ago

Cynthia

“Thank you so much for your generosity and support for SickKids and Cancer research. When R is was the hospital, we were scared parents but we didn’t worry. Medical expenses were covered, SickKids was a leader in child medicine and our neuro-surgeon was a world leader in brain cancer research for kids. Donations like yours mean that other parents and their families are able to have faith in the hospital and all of the good that it does. Thank you.”

Thank you so much for your generosity and support for SickKids and Cancer research. When R is was the hospital, we were scared parents but we didn’t worry. Medical expenses were covered, SickKids was a leader in child medicine and our neuro-surgeon was a world leader in brain cancer research for kids. Donations like yours mean that other parents and their families are able to have faith in the hospital and all of the good that it does. Thank you.
Kick Cancer's Butt Day matched donation

“Here's your matched donation made possible by the generosity of long-time SickKids Foundation supporters, the Garron family. THANK YOU so much for your awesome efforts to kick cancer's butt!”
$173.25
Received this donation 14 days ago

Cynthia
Joanne Willcox

“Amazing you’re doing this again for a very important cause! Enjoy your rides and thank you!”
$103.50
Received this donation 13 days ago

Cynthia

“Thank you so much for your continued support for SickKids. Donations like yours allow it to continue research to eliminate children’s cancer and let kids and be kids.”

Thank you so much for your continued support for SickKids. Donations like yours allow it to continue research to eliminate children’s cancer and let kids and be kids.
Christina Pike
$51.75
Received this donation 7 days ago

Cynthia
Roukaida Senthil
$51.75
Received this donation 5 days ago

Cynthia
Lesley McCleary
$25.88
Received this donation 5 days ago

Cynthia
Maria Mulloy

“Way to go Cynthia, such a great annual endeavour.”
$25.88
Received this donation 15 days ago

Cynthia

“Thank you so much for your support of this important cause. Your donation helps research to end childhood cancer and let kids enjoy being kids.”

Thank you so much for your support of this important cause. Your donation helps research to end childhood cancer and let kids enjoy being kids.
Anonymous
$25
Received this donation 16 days ago

Cynthia