John Pfeffer

10years All Star
John Pfeffer
I am riding 2,000 km in memory of Josee and Marc. Please sponsor me and support my challenge to fight kids' cancer and save little lives.
I've Ridden 0.0 km ? My goal is 2,000 km
My Rankings
  • National: 33rd
  • Province: 22nd in ON
I've raised $1,500 My goal is $7,000 Donate Now

I'm Riding For

Josee and Marc

Most unfortunately, I now add my wife Josée to this tribute. She passed away in December after the unimaginable hardship of facing two primary cancers — triple‑negative breast cancer and a gastrointestinal cancer. She met every challenge with courage, humour, and love, and I now ride in her honour. I also continue to ride for my best friend, Marc Rouleau, who succumbed to cancer on April 5, 2020. I could never do justice here to the kind of man he was — an exceptional father, military leader, husband, and friend. His memory stays with me on every ride. Neither Josée nor Marc faced childhood cancer, but I believe that every advance in the fight against childhood cancers strengthens the broader fight against cancer as a whole. That’s why I ride — for the kids, for the families, and for the people we’ve loved and lost.

My Story

21 Jun 2026

This August, I’m cycling 2,000 km in the SickKids Great Cycle Challenge to fight childhood cancer — the #1 disease killing Canadian kids. Children should be living life, not fighting for it.

I ride to support SickKids Foundation as they deliver life‑saving care, develop new treatments, and push toward cures that every child deserves.

This year, the ride carries a weight I never expected.

In December, I lost my wife, Josée — my love, my partner, and the person who cheered the loudest for every challenge I took on. She faced her own cancer with courage, humour, and a fierce will to live. Even in the hardest moments, she wanted me to keep riding, keep fundraising, and keep believing in a future where fewer families face what we did.

So I’m riding — for the kids, for the families fighting right now, and for Josée.

This will be my 16th straight year taking on this challenge, and once again I’ll be joined by my son, Nathan. Together, we’re taking on what will be our biggest ride as a team: Toronto to Quebec City — four days of cycling, one rest day, and a route I’ve completed before but Nathan has never done end‑to‑end. It’s a huge challenge, and one we’re ready to take on together.

Every kilometre we ride honours the kids who can’t, the families who never give up, and the memory of the woman who inspired me to keep going.

If you’re able, please consider donating to support these brave kids and their families. Your generosity fuels research, treatment, and hope.

Thank you.

My Legacy

Here's my personal impact over 10 years to fight kids' cancer and save little lives.
  • 2,007 km Ridden
    $5,936 Raised
    2017
  • 2,001 km Ridden
    $6,381 Raised
    2018
  • 1,827 km Ridden
    $4,563 Raised
    2019
  • 2,004 km Ridden
    $5,036 Raised
    2020
  • 1,802 km Ridden
    $5,439 Raised
    2021
  • 1,803 km Ridden
    $4,542 Raised
    2022
  • 1,809 km Ridden
    $6,710 Raised
    2023
  • 1,809 km Ridden
    $7,228 Raised
    2024
  • 1,023 km Ridden
    $11,960 Raised
    2025
  • Ridden
    $1,500 Raised
    2026
10years
16,085 km
Ridden
$59,296
Raised

My Challenge

  • $1,000 raised to fight kids' cancer!

    I just raised $1,000 to fight kids' cancer and achieved WARRIOR LEVEL in the challenge! Thank you so much for your support.

    Posted 5 days ago
  • $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 5 days ago
  • $250 raised to fight kids' cancer!

    I just raised $250 to fight kids' cancer and achieved PROTECTOR LEVEL in the challenge! Thank you so much for your support.

    Posted 10 days ago
  • $100 raised to fight kids' cancer!

    I just raised $100 to fight kids' cancer and achieved DEFENDER LEVEL in the challenge! Thank you so much for your support.

    Posted 10 days ago
  • 70.8 km ride - 70.84km Road Cycling - Sunday, June 7, 2026
    Map
    Logged this ride 19 days ago
  • 67.7 km ride - 67.71km Road Cycling - Sunday, May 31, 2026
    Map
    Logged this ride 26 days ago
  • 59.4 km ride - 59.39km Road Cycling - Sunday, May 24, 2026
    Map
    Logged this ride 33 days ago

My Sponsors

  • Jason Liu
    “Wishing you all the best in this year’s ride—especially after seeing you yesterday and being reminded of how much this tradition means to you. Hope the miles feel steady this year, and that being out there brings a sense of connection and peace along the way.”
    $300
    Received this donation 10 days ago
  • John Pfeffer
    $1,200
    Received this donation 5 days ago
Donate Now