The Crimson Lion / Lavine Family Foundation Challenge is LIVE! The first 1,000 participants to receive donations from five unique donors get a $500 donation. The top 20 teams with the most donors from February 17 to March 3 get a $25,000 donation.
Registration is open for rides in January, February, and March 2026!
100% of all funds raised go to rare cancer research at MSK
Learn about the mission, community, and impact of MSK's official rare cancer fundraising program
Once you’re registered, use these resources to make a bigger impact and prepare for your event!
If you've donated to or participated in an MSK event before, you already have an account. Use this form to request a one-time login link for quick, easy access to it.
Now through March 3, you can earn a big fundraising boost, thanks to the Crimson Lion / Lavine Family Foundation:
First 1,000 participants to receive donations from five unique donors get a $500 donation.
Top 20 teams with the most donors during the Challenge get a $25,000 donation.
