Mark Kalkoske

2years
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 869.5 mi to fight kids' cancer
My Rankings
  • National: 1008th
  • State: 75th in CA
I've raised $1,618 to fight kids' cancer Donate Now

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 Raised
    2024
  • 870 mi Ridden
    $1,618 Raised
    2025
2years
1,561 mi
Ridden
$1,715
Raised

My Challenge

  • 17.0 mi ride - Railroad Road - Tuesday, September 30, 2025
    Logged this ride 23 days ago
  • 23.0 mi ride - Rancho Loop - Sunday, September 28, 2025
    Logged this ride 25 days ago
  • 9.5 mi ride - Full day in the car! - Thursday, September 25, 2025
    Logged this ride 25 days ago
  • 50.0 mi ride - Goal Day! - Saturday, September 27, 2025
    Logged this ride 26 days ago
  • 20.6 mi ride - 1000 Palms loop - Thursday, September 25, 2025
    Logged this ride 28 days ago
  • 24.9 mi ride - PGA West - Tuesday, September 16, 2025
    Logged this ride 29 days ago
  • 27.8 mi ride - Rental car return ride - Tuesday, September 23, 2025
    Logged this ride 30 days ago
  • 15.0 mi ride - Evening in Pam Desert - Monday, September 22, 2025
    Logged this ride 30 days ago
  • 18.0 mi ride - Escrow shuffle! - Monday, September 22, 2025
    Logged this ride 30 days ago
  • 7.0 mi ride - Not so much- broken rear derailleur and walk! - Sunday, September 21, 2025
    Logged this ride 31 days ago

My Sponsors

  • 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!”
    $377.44
    Received this donation 41 days ago
    Mark Kalkoske
    Mark
    “We did it!! Together, we blew my fundraising goal of $1000 out of the water yesterday! Thank you all for your amazing support!”
  • Mary Jane Gilbreath
    “What a great cause❤️😎💃”
    $120
    Received this donation 56 days ago
    Mark Kalkoske
    Mark
    “You’re the best MJ! Thanks for helping out and helping me reach my goal!”
  • Joe & Kim Barr
    “Happy to support such a worthy cause! Good Luck on reaching your goal!”
    $103.50
    Received this donation 52 days ago
    Mark Kalkoske
    Mark
    “Joe and Kim, You guys are the best! Thank you for helping me to reach this goal and for saving little lives! Look forward to seeing you soon back in the desert ❤️”
  • Tori StJohns
    $103.50
    Received this donation 42 days ago
    Mark Kalkoske
    Mark
    “You are a special person and always will be, Tori! So inspired by your generosity!”
  • Richard White
    “Go get 'em, tiger!”
    $100
    Received this donation 42 days ago
    Mark Kalkoske
    Mark
    “Aww! Thanks Richard! I wore my Tour mountain climber (red polka dots) socks today just to commemorate your donation! Allez!”
  • Charlotte fudge
    “Excellent work Mark! Glad we can support”
    $72.45
    Received this donation 29 days ago
    Mark Kalkoske
    Mark
    “Thank you so much, Charlotte! It’s all about the kids but I’m grateful we could both do our part! You’re the best!”
  • Cathy Birkenmeier
    $51.75
    Received this donation 25 days ago
    Mark Kalkoske
    Mark
    “Cathy thank you so much for your amazing donation! You and dozens of others have inspired me to ride more this month than I ever have in my life! Not bad for a 64-year-old!”
  • Clark Thompson
    “Go Mark GO!”
    $51.75
    Received this donation 42 days ago
    Mark Kalkoske
    Mark
    “Thank you , Clark! It’s under 800 degrees in the desert this morning! Time to pedal for $$$!”
  • Lynn Mitchell
    “Keep it going bro 😎”
    $51.75
    Received this donation 56 days ago
    Mark Kalkoske
    Mark
    “Thanks, Lynn! Love that you are supporting your big brother on this!”
  • Sheryl Deeds
    “Hope I'm not too late..... Congratulations!!!!! This was impressive!!”
    $51.75
    Received this donation 23 days ago
    Mark Kalkoske
    Mark
    “Aww, Sheryl! Thank you so much for your donation! We did it and I’m a tired puppy! But I’m so happy to have been part of this thing - there has been almost $2 million raised thus far!”
  • Todd Kalkoske
    $51.75
    Received this donation 25 days ago
    Mark Kalkoske
    Mark
    “My brother! Dude, so grateful that you chipped in to support the cause! None of the miles were ridden at 7 watts per kilo! Promise!”
  • Tom Knapp
    $51.75
    Received this donation 56 days ago
    Mark Kalkoske
    Mark
    “Thank you, Tom, for the generous contribution! It made me so happy that you are my first contributor for 2025!”
  • Brian Pieper
    $50
    Received this donation 51 days ago
    Mark Kalkoske
    Mark
    “You’re awesome, Brian! Thanks for helping me get closer to my goal. Just 720 miles to go!! Hope you are well and love checking out you adventures on FB!”
  • April Garrow
    “Go Mark!”
    $36.23
    Received this donation 42 days ago
    Mark Kalkoske
    Mark
    “You rock, April! Thanks for the inspiration!”
  • Beverly McKeddie
    “You go, Crazy Wheels……………nick name of a special friend that has passed……..blessed to be part of this initiative !”
    $36.23
    Received this donation 38 days ago
    Mark Kalkoske
    Mark
    “Thanks for the honors, Bev - both the new monicker and the generous donation! We’re doing this thing together, pedal by pedal!”
  • Carmen Montenegro Carmen Montenegro
    “Thank you, Mark!”
    $36.23
    Received this donation 36 days ago
    Mark Kalkoske
    Mark
    “You rock as hard as you always have, Carmen! Thank you so much!! 😎 I’ll ride for you and the kids today!”
  • Lisa Cole
    “Thank you for always thinking of others. Honored to support!”
    $36.23
    Received this donation 52 days ago
    Mark Kalkoske
    Mark
    “Thank you, baby! We’re in this together and I couldn’t be happier!”
  • Anonymous
    $36.23
    Received this donation 25 days ago
    Mark Kalkoske
    Mark
    “Thank you!”
  • Pat Mattison
    “Kick Butt, Mark You gotta give this🚴‍♂️”
    $36.23
    Received this donation 42 days ago
    Mark Kalkoske
    Mark
    “Thanks, Pat! I sooo appreciate your support! How’s retired life?”
  • Anonymous
    $36.23
    Received this donation 42 days ago
    Mark Kalkoske
    Mark
    “Thank you to my nameless donor! Your $ are appreciated in the fight against childhood cancer!”
Donate Now