We're fundraising for...
The Kosi Challenge is an annual event hosted by Rare Cancers Australia (RCA) to raise awareness and much needed funds for Australians diagnosed with a rare, less common or complex cancer each year.
In March 2025, we will be climbing 2,228 metres above sea level to reach Australia’s highest point to help RCA.
One hundred per cent of funds raised through the Kosi Challenge goes towards the important work of RCA's Patient Support Team.
From helping patients to access specialists and treatments, through to delivering support groups, connecting people with services and providing financial assistance particularly in times of crisis, Patient Support is at the heart of what RCA does.
RCA is a Federal Government-classified Health Promotion Charity. All donations over AU $2 are fully tax deductible.
Thank you so much for your support.
Thank you to our Sponsors

$12.29k
Merck Matching

$1.06k
Turtle Transport Pty Ltd
good luck

$844
Bettergrow Pty Ltd
Small steps by you, bigger steps for Cancer Research

$528
David Lilja
Great cause Ben! Good luck

$500
Northwest Recycling Centre

$500
Ed
Well done and good luck.

$317
Parklea Pots And Plants
Good luck!

$264
Ben & Ian Grange

$264
Highland Pine Products Pty Ltd
Thanks from Highland Pine Products for your efforts on such a good cause. Well done Ben!

$264
Brc Concreting Pty Ltd
Great cause, Good luck ben

$258
Grange Growing Solutions Pty Ltd

$250
Haywoods Bulk Transport Pty Ltd
great effort ben

$250
Josie Downey
Go team Merck! I'm sorry that I can't join you this year - enjoy!

$250
Harry Grange Patricia Grange
great cause good luck

$200
Global Axis Import Solutions
Great work FA!!

$200
Flower Power Pty Ltd

$151
Viki Hammond
Great cause, Paul:)

$147
Annabel Forbes
Smash it homie! So proud of you 🩵

$132
Anna Bob Sonny & Jack Hulme
Good luck Ben & Ian, very worthy cause.

$106
Angela Pavicic
A great cause. Go Alexandra❤️

$106
Yates Hort&ag

$106
Kate Mitchell
You’re amazing Sal! Xx

$106
Maeve
Go Team Merck!

$106
Gerry Guinan
See you on the mountain, Ian!

$106
Nicholas Schoulal
It's a very good cause & I am pleased to support your involvement

$106
Simon Grange
One step at a time. You can do it!!

$106
Piotr Michalski

$106
Creative Advocacy Solutions
Matched donation by Creative Advocacy Solutions

$106
Gayatri Mani
Go Melina!!! What a great cause to be doing this challenge! Im very proud of you.... Take Care of yourself

$106
Anonymous
Good on you Alex!

$106
Adrian Chin
Best of luck and stay safe!

$106
Moy
Sending huge good wishes to you all ! 👏

$106
Zeljko & Mariella Ostaric
All the best to you and your team in the Kosi Challenge.

$106
Bill Bracey
go girl great cause

$106
Mary Nagle
Best wishes for a great outcome❣️❣️❣️

$106
Ana Ellis
Good luck. 🌄

$100
Susan Potthurst
Good luck Benny!

$100
Anonymous
Good luck Pete

$100
Anonymous

$100
Creative Advocacy Solutions
Matched donation by Creative Advocacy Solutions

$100
Anonymous

$100
Creative Advocacy Solutions
Matched donation by Creative Advocacy Solutions

$100
Nikki
Go Mum!!!!

$100
Susan Potthurst
Good on you Ian! Good luck 🤞

$80
Katrina & Mike Doyle
Good luck Ian and Ben Love mum and dad Zz

$80
Katrina Walker
Good Luck Ian & Ben Lots of love Katrina, Dale, Marcus, Libby & Fred xxx

$75
Shane Stewart
What an amazing challenge, sorry just saw you completed and didn't even realise that you were doing this!

$75
Shane Stewart
Sorry didn't donate sooner, but wow what an amazing achievement for such an important cause!

$56
Jc
Get your sneakers on and dash for that top spot! Piotr, Bella and Kerrilee!

$55
Alexandra Pavicic

$54
Sally Davis

$54
Susanne Davis

$54
Sam And Benji Leader
Good luck Mum! Love Sam and Benji

$54
Nicole Woodhill
Go team Merck !!! Thank you for supporting such a great cause

$54
Anonymous

$54
Angela Pavicic
A great initiative. Go Bella.

$54
Andrew Mitchell
Good one Sally!

$54
Annette Di Falco
Go Piotr!

$54
Adam Ellis
Shot of rakija at the top

$54
Paul Vilner

$54
Stephanie V
Here’s towards reaching the heights of more treatments for rare cancers

$54
Jessica Iglesias

$54
Paul Curtin

$54
Ingrid Chippendale

$54
Fiona Neale

$54
Arek Michalski
good luck son

$54
Nicole Foxall
Awesome effort Sal, congratulations to the whole team 🙌

$54
Anonymous
You are my inspiration. Go Girl!

$54
Alexandra Pavicic

$54
Creative Advocacy Solutions
Matched donation by Creative Advocacy Solutions

$54
Meagan
Good luck Ian!

$54
Meagan
Good luck Melina!

$54
Kylie Macri
🫶🏻

$54
Christina Salisbury
Way to go champ. Have a fabulous day xx

$54
Christina Salisbury
Way to go Melina! Have an amazing day!! xx

$54
Brandon Ostaric

$54
Anonymous

$54
Mathew Mellen
great work mate

$54
Mariella And Zeljko Ostaric
All the best Alex. Enjoy your weekend.

$54
Rhys Hanlon
Go Melina!

$54
Athena Kapparis
Awesome effort!! Look forward to seeing photos

$54
Caroline Low
Well done Paul, such a great cause.

$54
Bwg Haulage Pty Ltd

$54
Allister Brockley
Well done you ! 🙏🏼🌟

$53
Stu Hammo
Great cause PV,.. I'd love to be climbing up that hill with you.

$50
Sally Pengilly
Well done for doing this in memory of your Mum. You will SMASH it !

$50
Vanessa
Good luck Ian & Ben A very worthwhile cause Xx

$50
Isabella Ostaric
Yay! Looking forward to walking with you!

$50
Julian

$40
Kathy O’leary
Good luck Ian Love Kathy

$39
Lucas Ellis
Take Ana Ellis with you

$38
Ben & Ian Grange
Great cause!

$38
Louise Prestipino
Go raptor! You got this!!! 🦖

$38
Lance Moylan
That’s my friend!!! Legend!

$38
Sonja Cameron
Great cause, enjoy the hike

$38
Melissa Alvaro

$38
Kelly V
Love this for you! All the very best :)

$38
Leag

$38
Tayas Saupin
Goodluck! Have fun!

$38
Anonymous

$38
Anthony Mestrovic
Good luck

$38
Madeleine Necco

$38
Jane Moore-williams

$38
Creative Advocacy Solutions
Matched donation by Creative Advocacy Solutions

$38
Annie S

$35
Bo Searle
Go Bella!! So proud of you – what a great cause! Wishing you all the best in reaching your goal 🌟

$35
Bo Searle
Go Pete!! Love that you’re supporting such an awesome cause. Proud of you and excited to support you!

$35
Bo Searle
Great job, Sal! Really proud of what you're doing for such a worthwhile cause. Wishing you all the best! 🙌

$35
Rachel Maddock

$33
Lara

$28
Sophia Pasquarelli
Well done in doing this Ian! Good luck :)

$28
Creative Advocacy Solutions
Matched donation by Creative Advocacy Solutions

$28
Sophia Pasquarelli
Well done Melina, have fun and good luck

$28
Creative Advocacy Solutions
Matched donation by Creative Advocacy Solutions

$23
Scott Nichols

$23
Daniel Cordas
You’re the best!!

$23
Cass Theodooru

$23
Garry O'meara
Enjoy!

$23
Scott Nichols

$23
Emily Carrick

$23
Harrison Akdeniz
Good luck with it buddy

$23
Cass Theo

$23
Davina Cossigny
Go Sal!

$23
Davina Cossigny
Go Niv!

$23
Carly Stanton

$23
Clare Whitehead
Great charity! Good luck Ian. You’ll smash it xxx

$23
Olivia Z

$23
Katia Pettenon

$20
Simon Ting

$20
Liezl Steenkamp

$15
Layth Mashat

$12
Pete Johnston

$12
Anonymous

$12
Creative Advocacy Solutions
Matched donation by Creative Advocacy Solutions

$12
Katie Connolly
Our Team Members

Piotr Michalski
$513

Isabella Ostaric
$1,149

Kerrilee Tomlinson
$500

paul vilner
$366

Niv Massami
$23

Ian Doyle
$1,462

Benjamin Grange
$5,671

Alexandra Pavicic
$777

Sally Davis
$549
