Mayra Sainz Cuartas

7years
Mayra Sainz Cuartas
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 204.5 mi My goal is 250 mi
My Rankings
  • National: 1988th
  • State: 53rd in AZ
I've raised $725 to fight kids' cancer Donate Now

I'm Riding For

Nacho(Valdez Sainz

My Story

2 Sep 2026

I take pride every year to participate in this challenge. Last December I was struck by a DUI driver that caused me injuries. I thought I wouldn’t be able to participate this year, but here I am, less of a riding goal this year, but I’m here.

My Legacy

Here's my personal impact over 7 years to fight kids' cancer and save little lives.
  • 419 mi Ridden
    $875 Raised
    2020
  • 381 mi Ridden
    $810 Raised
    2021
  • 417 mi Ridden
    $546 Raised
    2022
  • 146 mi Ridden
    $546 Raised
    2023
  • 537 mi Ridden
    $639 Raised
    2024
  • 425 mi Ridden
    $1,187 Raised
    2025
  • 205 mi Ridden
    $725 Raised
    2026
7years
2,529 mi
Ridden
$5,327
Raised

My Challenge

  • 10.0 mi ride - Happy Tuesday - Tuesday, September 15, 2026
    Logged this ride 7 hours ago
  • 15.0 mi ride - Happy Monday - Monday, September 14, 2026
    Logged this ride 1 day ago
  • 15.0 mi ride - Sunny Saturday - Saturday, September 12, 2026
    Logged this ride 3 days ago
  • 15.0 mi ride - Happy Friday - Friday, September 11, 2026
    Logged this ride 4 days ago
  • 15.0 mi ride - Sunshine day - Thursday, September 10, 2026
    Logged this ride 5 days ago
  • $250 raised to fight kids' cancer!

    I just raised $250 to fight kids' cancer and achieved PROTECTOR LEVEL in the challenge! Thank you so much for your support.

    Posted 6 days ago
  • 20.0 mi ride - Happy day! ☀️ - Wednesday, September 9, 2026
    Logged this ride 6 days ago
  • $100 raised to fight kids' cancer!

    I just raised $100 to fight kids' cancer and achieved DEFENDER LEVEL in the challenge! Thank you so much for your support.

    Posted 6 days ago
  • 16.0 mi ride - Positive energy - Tuesday, September 8, 2026
    Logged this ride 7 days ago
  • 10.0 mi ride - Beautiful morning - Monday, September 7, 2026
    Logged this ride 8 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!”
    $291.44
    Received this donation 6 days ago
    Mayra Sainz Cuartas
    Mayra
    “Thank you for matching our donations.. God bless those kiddos Amen 🙏”
  • Kevin Cuartas
    “Another year my love of waking up at 5am to go for a bike ride. I’m proud of you because you do it for a good cause. Keep up the hard fight.”
    $103.50
    Received this donation 6 days ago
    Mayra Sainz Cuartas
    Mayra
    “I know you always supporting me,thank you so much my love 😍 Gob bless our house Amen 🙏”
  • Nayeli & Ale
    “We love you! Keep up the great work! <3”
    $103.50
    Received this donation 6 days ago
    Mayra Sainz Cuartas
    Mayra
    “Thank you sooo much! For supporting this cause.. I can always count on you guys.. God bless you Amen 🙏 Love you both 💙🩷”
  • Anonymous
    “You got this Mayra”
    $67.28
    Received this donation 6 days ago
  • Gaby
    “Amazing what you do mom!! Love you!🥰💗”
    $51.75
    Received this donation 6 days ago
    Mayra Sainz Cuartas
    Mayra
    “Thank you sooo much my beautiful daughter! God bless you and your money! Love you 🩷😘”
  • Karen Winecoff
    $51.75
    Received this donation 4 days ago
    Mayra Sainz Cuartas
    Mayra
    “Thank you karen for supporting research for Children’s Cancer it means so much to me because I lost my lil cousin to cancer.. God bless you guys! Amen 🙏”
  • Megan, Kyle, Ri & Chiquito
    “Congrats on another year riding for a great cause! You got this!”
    $30
    Received this donation 10 days ago
    Mayra Sainz Cuartas
    Mayra
    “Thank you sooo much you guys! For always supporting me.. God bless you and your beautiful family.. love you and miss you 🥰”
  • Linda Sims
    $25.88
    Received this donation 6 days ago
    Mayra Sainz Cuartas
    Mayra
    “Thank you so much Linda for supporting this cause.. God bless you and your family Amen 🙏❤️😘”
Donate Now