Mark Koza

I am riding 400 miles, in memory of my brother Mike Rayhill and my father-in-law Joe Rayhill, who always supported my rides.

Donate Now

I've Ridden 124.5 mi My goal is 400 mi

My Rankings

National: 671st
State: 28th in PA

I've raised $1,934 My goal is $2,000 Donate Now

I'm Riding For

Mike Rayhill / Joe Rayhill

Forever loved - Forever missed

My Story

8 Aug 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 5 years to fight kids' cancer and save little lives.

456 mi Ridden

$2,254 Raised

2021
567 mi Ridden

$2,138 Raised

2022
420 mi Ridden

$2,254 Raised

2023
607 mi Ridden

$3,466 Raised

2024
124 mi Ridden

$1,934 Raised

2025

2,174 mi

Ridden

$12,046

Raised

My Challenge

$1,000 raised to fight kids' cancer!

I just raised $1,000 to fight kids' cancer and achieved WARRIOR LEVEL in the challenge! Thank you so much for your support.

Posted 4 days ago
$500 raised to fight kids' cancer!

I just raised $500 to fight kids' cancer and achieved GUARDIAN LEVEL in the challenge! Thank you so much for your support.

Posted 4 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 4 days ago
40.0 mi ride - Rail 66 Country Trail - Monday, September 8, 2025

Logged this ride 7 days ago
44.0 mi ride - TAMED - Sunday, September 7, 2025

Logged this ride 8 days ago
40.5 mi ride - Kinzua Bridge - Saturday, September 6, 2025

Logged this ride 9 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 37 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!”
$692.33
Received this donation 3 days ago

Mark
Carolyn Rayhill
$258.75
Received this donation 4 days ago

Mark

“Thank you, Carolyn, for supporting my ride!!”

Thank you, Carolyn, for supporting my ride!!
Jen & Randy
$103.50
Received this donation 4 days ago

Mark

“Thank you, Jen and Randy, for supporting my ride !!”

Thank you, Jen and Randy, for supporting my ride !!
Tim VanDervoort

“Go for it, Mark!!!”
$103.50
Received this donation 2 days ago

Mark
Anonymous
$51.75
Received this donation 3 days ago

Mark

“Thank you for supporting my ride !”

Thank you for supporting my ride !
Lori FISCUS

“Keep spinning for the love of the kids!”
$51.75
Received this donation 4 days ago

Mark

“Thank you Sis !!!!”

Thank you Sis !!!!
Ned &Lynda Karger

“Keep up the good work!”
$51.75
Received this donation 4 days ago

Mark

“Thank you, Ned, and Lynda for supporting my ride !!”

Thank you, Ned, and Lynda for supporting my ride !!
Barbara Dahl

“Keep on peddling Mark!”
$36.23
Received this donation 8 days ago

Mark

“Thank you Barb for supporting my rides!!!”

Thank you Barb for supporting my rides!!!
Beth Zwerin

“Go Mark!!!”
$36.23
Received this donation 6 days ago

Mark

“Thank you Beth for supporting my ride !!”

Thank you Beth for supporting my ride !!
David Gausman
$36.23
Received this donation 2 days ago

Mark

“Thanks Dave !!!!”

Thanks Dave !!!!
Karen Gorski

“What a great cause. Thanks for all the cycling!”
$36.23
Received this donation 4 days ago

Mark

“Thank you, Karen, for supporting my ride !!”

Thank you, Karen, for supporting my ride !!
Brian Karger
$20.70
Received this donation 4 days ago

Mark

“Thank you , Brian for supporting my ride !!”

Thank you , Brian for supporting my ride !!
Cory Darr
$20.70
Received this donation 4 days ago

Mark

“Thank you, Cory, for supporting my ride!!”

Thank you, Cory, for supporting my ride!!
Harry
$20.70
Received this donation 3 days ago

Mark

“Thanks Harry for supporting my ride !!”

Thanks Harry for supporting my ride !!
Highlander Energy
$310.50
Received this donation 4 days ago

Mark

“Thank you Bert for supporting my ride !!”

Thank you Bert for supporting my ride !!
Anonymous
$103.50
Received this donation 37 days ago

Mark