8 running, ultra, and fun run events in Folsom, California

From big races to Saturday morning group runs—find running, ultra, and fun run events and connect with the local endurance sports community.

• Lace Up For Learning [laceupforlearning.org] [Register at runsignup.com]
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  Sun, Apr 26, 2026 at 9:00 AM

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  Lace Up For Learning is a nonprofit that was started in 2024 by five 8th grade friends who believe in the value of community, the importance of education, and the power of running.

  The mission behind...

  Lace Up For Learning is a nonprofit that was started in 2024 by five 8th grade friends who believe in the value of community, the importance of education, and the power of running.

  The mission behind this annual event is to raise money for under resourced classrooms across the greater Sacramento area. In the first two years, participants, donors, and sponsors raised more than $30,000 -- reaching thousands of students, K-12.

  The 5k and 10k courses run on the beautiful, flat paved Parkway Trails in Folsom. The Kids Fun Run includes obstacle elements and takes place on a large grass field. Participants of all levels are welcome - from serious runners to community supporters pushing strollers or walking their dogs.

  We look forward to meeting you on race day - and we appreciate your support for our mission.

  5k 10k Fun Run Run Trail Walk

  100 Prewett, Folsom, California, 95630, United States
  OpenStreetMap Google Maps
• Folsom Lake Trail Run [insidetrail.com] [Register at ultrasignup.com] - Facebook - Instagram
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  Sat, May 02, 2026

  10k 35k 50k Half Marathon Run Trail Ultra

  661 Green Valley Rd, Folsom, California, 95630, United States
  OpenStreetMap Google Maps
• NorCal Backyard Ultra [badluckrunclub.com] [Register at ultrasignup.com]
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  Fri, Oct 23, 2026

  Ultra

  Beals Point, Folsom, California, 95671, United States
  OpenStreetMap Google Maps
• Rio Del Lago 100 Mile + 50K Endurance Runs [rio100mile.com] [Register at raceroster.com]
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  Sat, Nov 07, 2026 at 5:00 AM

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  The Jewel of the Sierra Nevada

  November 7-8, 2026

  Welcome to the 2026 Rio Del Lago Endurance Runs Presented by Altra!

  🎉 Celebrating 25 Years of the Rio 100 & 5 Years of the Rio 50K!

  The celebration...

  The Jewel of the Sierra Nevada

  November 7-8, 2026

  Welcome to the 2026 Rio Del Lago Endurance Runs Presented by Altra!

  🎉 Celebrating 25 Years of the Rio 100 & 5 Years of the Rio 50K!

  The celebration is on! The Rio Del Lago Endurance Runs presented by Altra return on November 7, 2026, marking the 25th anniversary of the legendary Rio 100 Mile Endurance Run and the 5th running of the fan-favorite Rio 50K.

  Whether this is your first Rio or your twenty-fifth, we’re doing cartwheels to welcome you to this milestone year. Together, we’ll honor a quarter century of endurance, community, and trail magic on one of Northern California’s most iconic courses.

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  🌄 About the Races

  Rio 100 Mile Endurance Run presented by Altra

  A true test of grit, determination, and heart. The Rio 100 takes runners on a breathtaking journey from Folsom to Auburn and back, showcasing miles of rolling singletrack, river views, and the rugged beauty of the Sierra foothills.

  Rio 50K Endurance Run presented by Altra

  Now in its 5th year, the Rio 50K starts alongside the 100 milers at Beal’s Point and follows the scenic early miles of the course. With stunning views along Folsom Lake, Lake Natoma, and the infamous Johnny Cash Trail, it’s the perfect distance for your first ultra or your fastest 50K yet!

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  🌟 A Milestone Year — A Legendary Experience

  As we celebrate 25 years of Rio, expect an unforgettable weekend filled with tradition, camaraderie, and celebration. From world-class race organization and well-stocked aid stations to the warmth of our incredible volunteers, this year’s event will capture everything that makes Rio Del Lago truly special.

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  🎽 All Entries Include:

  • NorCalUltras Goody Swag Bag

  • Commemorative 25th Anniversary Technical Race Shirt

  • Finisher Medallion

  • 100 Mile Finisher Belt Buckle (sub-30-hour finishers)

  • 100 Mile Finisher Athleisure Lightweight Pullover

  • Neversecond Gels on Course

  • Skratch Hydration on Course

  • B-Tag Chip Timing

  • Bob and Brandt's Breakfast Bistro

  • Chef Tim’s “Soup for the Soul”

  • Beer Garden

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  🏕️ Plan Your Race Weekend

  Visit our official website for detailed race information, course maps, and lodging options in our host city of Folsom, California.

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  💛 Join the Celebration

  Be part of history as we honor 25 years of the Rio 100 and 5 years of the Rio 50K — a milestone weekend filled with tradition, community, and endurance.

  25 Years Strong. 25 Years of Grit. 25 Years of Rio.

  We can’t wait to celebrate this special year with you on the trails!

  – The NorCalUltras Team

  50k 100 Miles Run Track Trail Ultra

  American River Bike Trail, Folsom, California, 95671, United States
  OpenStreetMap Google Maps