Jon Treffert

Cancer is the biggest killer of kids from disease in the USA, 38 children die every week. Please donate now and support my challenge to fight kids' cancer!

Donate Now

I've Ridden 381.2 mi My goal is 400 mi

My Rankings

National: 361st
State: 6th in TN

I've raised $3,209 My goal is $3,500 Donate Now

I'm Riding For

Caitlin Duncan

Caitlin was a dear member of my church family and one of the most positive individuals that you would ever meet. A devout Christian, she devoted her life to Jesus and being a positive impact in the lives of everyone she met. She enjoyed listening to Christian music, and she loved her family and friends with all she had. She found out that she had a brain tumor at the young age of 16, she fought a long hard battle of surgery, chemotherapy, and radiation treatments. Caitlin passed away at the age of 23. Although her life ended far shorter than it should have, she impacted the lives of many people in a positive and up-lifting way.

My Story

10 Sep 2026

In November 2017 I was 60 years old, 267 lbs and a type II diabetic. I began a health journey with the purchase of an e-bike working up to riding 700 miles in June 2018 for my first Great Cycle Challenge. I reversed my type 2 diabetes (14 years after diagnosis) and remain 100 lbs lighter.

I was diagnosed with muscle invasive bladder cancer in October 2023. I had my first PET/CT scan - a technology which I helped develop - where I learned that my cancer had spread to lymph nodes. I began a new treatment the week it was approved by the FDA. I have my bladder and currently have no evidence of disease by imaging, circulating DNA and cystoscopy. I will reach 3 years since diagnosis in September - with my bladder intact and no evidence of disease.

I have an even stronger motivation as I enter my 9th Great Cycle Challenge: Cancer research funding is at risk. Children's cancers are different than most cancers which affect adults and unfortunately do not receive the same level of funding for breakthroughs such as that I am benefiting from. This is the need the Children's Cancer Research Fund serves and is more important than ever.

Means to achieve unity of purpose is a great concern these days - realizing a world where we don't lose children to cancer would seem a great place to start. Your generous donations are sincerely appreciated.

Thank you!

My Legacy

Here's my personal impact over 9 years to fight kids' cancer and save little lives.

1,078 mi Ridden

$2,589 Raised

2018
1,443 mi Ridden

$1,200 Raised

2019
1,190 mi Ridden

$1,627 Raised

2020
929 mi Ridden

$1,626 Raised

2021
837 mi Ridden

$1,753 Raised

2022
626 mi Ridden

$1,393 Raised

2023
763 mi Ridden

$1,103 Raised

2024
1,125 mi Ridden

$3,022 Raised

2025
381 mi Ridden

$3,209 Raised

2026

8,373 mi

Ridden

$17,522

Raised

My Challenge

25.1 mi ride - GCC Ride 17 - Friday, September 25, 2026

Logged this ride 23 hours ago - View on Strava
28.5 mi ride - GCC 16 - New Jersey - Thursday, September 24, 2026

Logged this ride 2 days ago - View on Strava
25.1 mi ride - (Soggy) GCC Ride 15 - Wednesday, September 23, 2026

Logged this ride 3 days ago - View on Strava
29.1 mi ride - GCC Ride 14 - Tuesday, September 22, 2026

Logged this ride 4 days ago - View on Strava
24.1 mi ride - GCC Ride 13 - Monday, September 21, 2026

Logged this ride 5 days ago - View on Strava
19.0 mi ride - GCC Ride 12 - Sunday, September 20, 2026

Logged this ride 6 days ago - View on Strava
$2,500 raised to fight kids' cancer!

I just raised $2,500 to fight kids' cancer and achieved SUPERHERO LEVEL in the challenge! Thank you so much for your support.

Posted 7 days ago
28.4 mi ride - Back in the saddle for the kids - Saturday, September 19, 2026

Logged this ride 7 days ago - View on Strava
12.4 mi ride - GCC Ride 9 - Half way - off the lobby in D.C. - Saturday, September 12, 2026

Logged this ride 14 days ago - View on Strava
19.0 mi ride - GCC Ride 8 - Late start - Friday, September 11, 2026

Logged this ride 15 days ago - View on Strava

My Sponsors

Dorothy Treffert

“Go Johann!”
$1,035
Received this donation 7 days ago

Jon
Kick Cancer's Butt Day matched donation

“Here's your matched donation from a group of wonderful Children's Cancer Research Fund supporters. THANK YOU so much for your awesome efforts to kick cancer's butt!”
$655.74
Received this donation 16 days ago

Jon
Dorothy Treffert

“Go Jon go!”
$258.75
Received this donation 17 days ago

Jon
Anonymous

“Many thanks to Jon Treffert for his efforts and battles against cancer.”
$258.75
Received this donation 27 days ago

Jon

“Thank you so much for your generous contribution to supporting emerging research to end children’s cancer!”

Thank you so much for your generous contribution to supporting emerging research to end children’s cancer!
Kathie Kinnaman

“Keep on pedaling, Jon!”
$160.43
Received this donation 15 days ago

Jon

“Thank you so much for your generous donation!”

Thank you so much for your generous donation!
Doug Slater

“Love it!”
$103.50
Received this donation 17 days ago

Jon

“Thank you so much my friend!”

Thank you so much my friend!
Jill Treffert

“I am so very proud of my amazing brother Jon who has faithfully participated in the Great Cycle Challenge for the past 9 years, no matter the weather. Go, Jon, go and Kick Cancer’s Butt!! 🚴‍♂️🙏❤️”
$103.50
Received this donation 17 days ago

Jon

“Thanks so much Nill!”

Thanks so much Nill!
Matched Day Matching Donation

“Here's your matched donation from a group of wonderful Children's Cancer Research Fund supporters. THANK YOU so much for your awesome efforts to fight kids' cancer!”
$65.03
Received this donation 2 days ago

Jon
Joni Stine

“Go, Jon! Such important work you are doing!”
$51.75
Received this donation 17 days ago

Jon

“Thank you very much Joni Lynn!”

Thank you very much Joni Lynn!
Mary McGalloway

“Thank you Jon! Keep on riding!”
$25.88
Received this donation 18 days ago

Jon

“Thank you so much for your support!”

Thank you so much for your support!
Paula Williams
$25.88
Received this donation 29 days ago

Jon

“Thank you Paula for kicking off my campaign!”

Thank you Paula for kicking off my campaign!
Colin

“Best of luck with the fund raising Jon. Keep fighting cancer - with or without code!”
$20.70
Received this donation 16 days ago

Jon

“Thanks my friend! I’m back to building code for my patient advocacy work. This time with AI assistance - absolutely amazing. Say hello to all my friends fighting with code in Stockholm!”

Thanks my friend! I’m back to building code for my patient advocacy work. This time with AI assistance - absolutely amazing. Say hello to all my friends fighting with code in Stockholm!
Facebook Fundraiser Donation
$20
Received this donation 223 days ago

Jon
Amanda Crisp

“Way to go!”
$15.53
Received this donation 17 days ago

Jon

“Thanks so much Amanda! I’ll be the road in DC - hope to see you there!”

Thanks so much Amanda! I’ll be the road in DC - hope to see you there!
Facebook Fundraiser Donation
$10
Received this donation 221 days ago

Jon
Anonymous

“Ride on Jon!”
$258.75
Received this donation 17 days ago

Jon

“Thank you so much for your generous contribution to supporting emerging research to end children's cancer!"”

Thank you so much for your generous contribution to supporting emerging research to end children's cancer!"
Anonymous

“Great day to give to fight kid’s cancers!”
$103.50
Received this donation 3 days ago

Jon
Jon Treffert

“Kicking things off with my own personal donation to fight kids' cancer!”
$36.23
Received this donation 223 days ago

Jon