Omar Calleros

I am riding 200 mi in memory of my loved ones, Yailin Orpinela & Mattie Jackson, and in honor of our inspirational survivor Sloane Smith. Please support!

Donate Now

I've Ridden 200.0 mi to fight kids' cancer

My Rankings

National: 234th
State: 14th in CA

I've raised $4,264 to fight kids' cancer Donate Now

I'm Riding For

Sloane Smith, Yailin Orpinela & Mattie Jackson

My Story

9 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.

My Legacy

Here's my personal impact over 3 years to fight kids' cancer and save little lives.

Ridden

Raised

2021
Ridden

Raised

2022
200 mi Ridden

$4,264 Raised

2026

200 mi

Ridden

$4,264

Raised

My Challenge

20.3 mi ride - Last ride! - Sunday, September 20, 2026

From Peloton to Home

Logged this ride 41 days ago
18.6 mi ride - Morning ride - Saturday, September 19, 2026

Logged this ride 42 days ago
19.4 mi ride - Friday night ride - Friday, September 18, 2026

Logged this ride 43 days ago
18.2 mi ride - Peloton - Thursday, September 17, 2026

Logged this ride 44 days ago
18.1 mi ride - 1 hour ride Peloton - Wednesday, September 16, 2026

Logged this ride 45 days ago
14.9 mi ride - Peloton - Tuesday, September 15, 2026

Logged this ride 46 days ago
13.0 mi ride - Peloton - Saturday, September 12, 2026

Logged this ride 46 days ago
12.5 mi ride - Peloton - Saturday, September 12, 2026

Logged this ride 47 days ago
13.0 mi ride - Peloton Colorado - Saturday, September 12, 2026

Logged this ride 49 days ago
15.1 mi ride - Friday night - Friday, September 11, 2026

Logged this ride 50 days ago

My Sponsors

Anonymous

“Let go Omar💪🏼”
$1,035
Received this donation 50 days ago

Omar

“I don't know who this is, but WOW!!! thank you so much for your generous donation and support!!”

I don't know who this is, but WOW!!! thank you so much for your generous donation and support!!
Pam Smith

“Go get em Imar. Good for you!!”
$517.50
Received this donation 53 days ago

Omar

“WOW! Thank you for the support!! ❤️”

WOW! Thank you for the support!! ❤️
Douglas Smith
$310.50
Received this donation 53 days ago

Omar

“Thank you Papa Doug!”

Thank you Papa Doug!
Britney Bair
$258.75
Received this donation 54 days ago

Omar

“Thank you for your donation and support! Sending hugs!”

Thank you for your donation and support! Sending hugs!
Mackenzie Smith
$258.75
Received this donation 53 days ago

Omar

“Thank you for the support Kenzie! ❤️”

Thank you for the support Kenzie! ❤️
Renee Robles

“Thank you!”
$258.75
Received this donation 54 days ago

Omar

“Thank you so much for your generous donation and support! Sending hugs!”

Thank you so much for your generous donation and support! Sending hugs!
Anonymous
$258.75
Received this donation 52 days ago

Omar

“Thank you for your donation and support!”

Thank you for your donation and support!
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!”
$214.29
Received this donation 51 days ago

Omar

“Thank you!”

Thank you!
Anneth Vega

“Muy orgullosa de usted Compadre vamos por la meta y mucho mas.”
$103.50
Received this donation 54 days ago

Omar

“Muchas gracias comadre!”

Muchas gracias comadre!
Carmen Cuevas

“Good Job! Keep it up!”
$103.50
Received this donation 41 days ago

Omar

“Thank you comadre!!”

Thank you comadre!!
Katie Gordon & Mary Judd

“Thanks for being an advocate and raising awareness, many are missed and others still need research for a better future!!”
$103.50
Received this donation 39 days ago

Omar

“Thank you Kitty!”

Thank you Kitty!
Pam Smith
$103.50
Received this donation 61 days ago

Omar

“Thank you Mama Pam!”

Thank you Mama Pam!
Patty Smith
$103.50
Received this donation 54 days ago

Omar

“Thank you mama Pam!”

Thank you mama Pam!
Ruth & Allen Boyd

“Go, Omar, Go!”
$103.50
Received this donation 54 days ago

Omar

“Thank you for your generous donation and support! Sending hugs!”

Thank you for your generous donation and support! Sending hugs!
Sean W

“Do it for the kids!”
$103.50
Received this donation 51 days ago

Omar

“Thank you so much for your support Sean!”

Thank you so much for your support Sean!
The Jackson Family

“Thank you for riding in memory of Mattie and helping bring hope to kids and families facing pediatric cancer. We’re so grateful for you! 🩵🎗️”
$103.50
Received this donation 42 days ago

Omar

“thank you Jackson Family! you are an inspiration to us all. sending hugs!”

thank you Jackson Family! you are an inspiration to us all. sending hugs!
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 37 days ago

Omar
Aida Meza
$51.75
Received this donation 53 days ago

Omar

“Thank you Aida!! Abrazos!”

Thank you Aida!! Abrazos!
Carmen Luna

“Keep up the great work!”
$51.75
Received this donation 44 days ago

Omar

“Thank you Carmen!”

Thank you Carmen!
Cynthia Padilla

“Great Job Omar!”
$51.75
Received this donation 49 days ago

Omar

“Thank you Cynthia!!”

Thank you Cynthia!!