Mike Streff

Mike Streff
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 341.4 mi My goal is 400 mi
My Rankings
  • National: 1537th
  • State: 7th in SD
I've raised $967 My goal is $1,000 Donate Now

My Story

2 Sep 2026

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.

Mike

My Challenge

  • 10.1 mi ride - Park to Canyon - Monday, September 21, 2026
    Logged this ride 6 hours ago
  • 21.2 mi ride - Maitland Road Gravel Ride - Sunday, September 20, 2026
    Logged this ride 1 day ago
  • 14.6 mi ride - Service Road - Saturday, September 19, 2026
    Logged this ride 2 days ago
  • 33.5 mi ride - Old Belle to Spearfish Canyon - Friday, September 18, 2026
    Logged this ride 3 days ago
  • 15.5 mi ride - Higgins Gulch - Wednesday, September 16, 2026
    Logged this ride 5 days ago
  • 24.1 mi ride - Spearfish Canyon - Tuesday, September 15, 2026
    Logged this ride 6 days ago
  • 11.6 mi ride - Recovery Ride - Sunday, September 13, 2026
    Logged this ride 8 days ago
  • 20.3 mi ride - Gravel training ride - Saturday, September 12, 2026
    Logged this ride 9 days ago
  • 15.4 mi ride - Gravel Ride on Old Belle Road - Friday, September 11, 2026
    Logged this ride 10 days ago
  • 24.1 mi ride - Higgins Gulch Gravel Ride - Thursday, September 10, 2026
    Logged this ride 11 days ago
Show More

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!”
    $192.87
    Received this donation 12 days ago
    Mike Streff
    Mike
    “Thanks so much for your matching donations. This is for a great cause for children!”
  • Tracy Franklin
    $103.50
    Received this donation 1 day ago
    Mike Streff
    Mike
    “Tracy thanks for your generous donation! This will go a long way in helping children with cancer! Can’t wait to see you soon in Arizona! Thanks again.👍❤️”
  • Craig Carlton
    $76.85
    Received this donation 11 days ago
    Mike Streff
    Mike
    “Craig thanks so much for your generous contribution for fighting kid cancer. I appreciate your support in this campaign. 🚴❤️”
  • Darrell Streff
    $51.75
    Received this donation 1 day ago
    Mike Streff
    Mike
    “Dad - thank you for your generosity! Your donation is going for an awesome cause/need. 👍❤️”
  • Debra Ingalls
    “So proud of you ! Your determination doesn’t surprise me.💕”
    $51.75
    Received this donation 1 day ago
    Mike Streff
    Mike
    “Deb thanks so much for your donation. As you know fighting any kind of cancer is important, but in children I feel this is even a greater need! ❤️”
  • Doug Kraft
    $51.75
    Received this donation 24 hours ago
    Mike Streff
    Mike
    “Thank you Doug for your support to this cause thru your donation. Your generosity towards children with cancer is greatly appreciated. 👍”
  • Karen Parry
    “Go Mike Go!!’ Hreat Job”
    $51.75
    Received this donation 1 day ago
    Mike Streff
    Mike
    “Thanks Karen for your generosity. Your donation is for a great cause. Hope to see you soon in Mesa! ❤️”
  • Kevin Streff
    $51.75
    Received this donation 10 days ago
    Mike Streff
    Mike
    “Kevin thanks for your generosity to help with this cause. My riding helps promote and bring awareness to this cause, and your contribution will directly impact kids with cancer! Thanks again.”
  • Larry Zimmerman
    “Thanks for riding for a great cause.”
    $51.75
    Received this donation 12 days ago
    Mike Streff
    Mike
    “Larry thanks so much for donating to this great cause for kids. You have a big heart. Hope to see you sometime in Arizona.”
  • Anonymous
    $51.75
    Received this donation 11 days ago
    Mike Streff
    Mike
    “I want to thank you for helping with this great cause. I don’t know who you are but I know you have a great heart by contributing ❤️”
  • Mike Tripp
    “The wheels on the bus go round & round.”
    $51.75
    Received this donation 12 days ago
    Mike Streff
    Mike
    “Mike and Heather. Thanks so much for your donation to a great cause for kids. They and I really appreciate your generosity. ❤️”
  • Rich Loose
    $51.75
    Received this donation 12 days ago
    Mike Streff
    Mike
    “Rich thank you for your donation. It is for an awesome cause. 👍❤️”
  • Rob and Mary Gray
    “You got this Mike! Thanks for doing something special. See you this fall!”
    $51.75
    Received this donation 12 days ago
    Mike Streff
    Mike
    “Thank you Rob and Mary. You both have big hearts! I look forward to seeing both of you this fall my friends. ❤️”
  • Gary M
    “Cancer SUCKS!”
    $50
    Received this donation 6 days ago
    Mike Streff
    Mike
    “Gary thanks for your contribution for this great cause that affects kids! I appreciate you, and know your donation will be used for fighting childhood cancer.”
  • Holly Coates
    $25.88
    Received this donation 12 days ago
    Mike Streff
    Mike
    “Thanks so much Holly. Your donation is going to an awesome cause. You have a kind heart!❤️”
Donate Now