Reindeer Run 5K Thank you for supporting the 15th Annual MSDA 5K Reindeer Run Saturday, December 6, 2025 at 9:30AM Thank you to our Jingle Jam Holiday Market Vendors! Shop: Friday, Dec. 5, 5 to 8pm; Saturday, Dec. 6, 8:30 to 12:30pm Thank you to our 2025 Sponsors! All proceeds from the MSDA 5K Reindeer Run directly support the education and empowerment of young women at Mount St. Dominic Academy.  Thank you for your support! Thomas J. O'Bierne & Co. About the MSDA 5K Reindeer Run 2025 marks the 15th Anniversary of the 5K Reindeer Run! Caldwell’s beloved Trinity Academy grew the Reindeer Run into a hugely popular and eagerly anticipated annual community event, drawing upwards of 900 participants. Mount St. Dominic Academy, the all-girls Catholic college prep school just up the hill from Trinity, is honored to be carrying on its legacy, with all proceeds from the event continuing to support the tradition of Catholic education. This year's event will take place both in person and virtually - so no matter your location, you can lace up to run for the students of the Mount! We thank you in advance for your support! Questions? We are happy to help! Email reindeerrun@msdacademy.org All race proceeds benefit Mount St. Dominic Academy, an all girls Catholic High School in Caldwell, NJ. The Mount is Middle States Accredited,  and we are proud to celebrate 130 years of Catholic education.