Mark Kalkoske

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!
I've Ridden
749.4 mi
My goal is
800 mi
My Rankings
- National: 1082nd
- State: 80th in CA
My Story
14 Sep 2025
This September, I am taking part in the Great Cycle Challenge to fight kids' cancer!
Why? Because right now, cancer is the biggest killer of children from disease in the United States. Over 15,700 children are diagnosed every year, and sadly, 38 children die of cancer every week.
Kids should be living life, not fighting for it.
So I am raising funds through my challenge to help these kids and support Children's Cancer Research Fund to allow them to continue their work to develop lifesaving treatments and find a cure for childhood cancer.
Please support me by making a donation to give these kids the brighter futures they deserve.
Your support will change little lives.
Thank you.
My Legacy
Here's my personal impact over 2 years to fight kids' cancer and save little lives.
-
692 mi Ridden$97 Raised2024
-
749 mi Ridden$1,427 Raised2025
1,441 mi
Ridden
$1,524
Raised
My Challenge
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24.9 mi ride - PGA West - Tuesday, September 16, 2025
Logged this ride 15 hours ago -
27.8 mi ride - Rental car return ride - Tuesday, September 23, 2025
Logged this ride 1 day ago -
15.0 mi ride - Evening in Pam Desert - Monday, September 22, 2025
Logged this ride 1 day ago -
18.0 mi ride - Escrow shuffle! - Monday, September 22, 2025
Logged this ride 2 days ago -
7.0 mi ride - Not so much- broken rear derailleur and walk! - Sunday, September 21, 2025
Logged this ride 2 days ago -
40.4 mi ride - Ave60 - CV Link - Saturday, September 20, 2025
Logged this ride 4 days ago -
24.0 mi ride - 2 easy Friday rides - Friday, September 19, 2025
Logged this ride 4 days ago -
60.0 mi ride - Radiohead Rainride - Thursday, September 18, 2025
Logged this ride 6 days ago -
40.8 mi ride - Thermal on CVlink - Tuesday, September 16, 2025
Logged this ride 8 days ago -
27.0 mi ride - Gravel RR ride to Date Palm - Monday, September 15, 2025
Logged this ride 9 days ago
My Sponsors
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Kick Cancer's Butt Day matched donation
$377.44Received this donation 13 days agoMark
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Mary Jane Gilbreath
$120Received this donation 27 days agoMark
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Joe & Kim Barr
$103.50Received this donation 24 days agoMark
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Tori StJohns
$103.50Received this donation 14 days agoMark
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Richard White
$100Received this donation 14 days agoMark
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Charlotte fudge
$72.45Received this donation 16 hours agoMark
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Clark Thompson
$51.75Received this donation 14 days agoMark
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Lynn Mitchell
$51.75Received this donation 27 days agoMark
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Tom Knapp
$51.75Received this donation 28 days agoMark
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Brian Pieper
$50Received this donation 22 days agoMark
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April Garrow
$36.23Received this donation 14 days agoMark
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Beverly McKeddie
$36.23Received this donation 9 days agoMark
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Carmen Montenegro Carmen Montenegro
$36.23Received this donation 7 days agoMark
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Lisa Cole
$36.23Received this donation 24 days agoMark
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Pat Mattison
$36.23Received this donation 14 days agoMark
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Anonymous
$36.23Received this donation 14 days agoMark
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Vernessa Terrell Jones
$35Received this donation 14 days ago -
Susan Schag
$25.88Received this donation 22 days agoMark
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Thomas Donohue
$25.88Received this donation 14 days agoMark
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Olivia Munoz
$20.70Received this donation 14 days agoMark