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Sunday, December 7, 2025 @ 9:30 AM Cambridge, MA 02139 US

Marathon Sports

Join Winter Classic Team

Invite Friends

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Enter the name and email address of the members you’d like to invite. Please note that you can only invite up to invites from a TriSignup email address, but you can still email the registration link through your personal email.

How Do You Want to Send These Emails Send from a TriSignup email address.

With this option, we will send an email from noreply@runsignup.com to the members you invite.

Send from my personal email address.

With this option, we will generate a template email you can copy and send through your own email address and mail client.

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Enter Your Personal Message

Email	First Name	Last Name
Email	First Name	Last Name

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Winter Classic 5K

Marathon Sports

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Winter Classic 5K

Marathon Sports

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