Rio Del Lago 2016 will be a qualifier for the 2017 Western States 100!

Daylight Savings occurs on Rio race weekend. However, we will NOT be observing the time change until the race is officially over. You will need to keep your watches, clocks, etc set to the time clock beginning on Saturday. If you have a device that automatically changes, you will need to adjust. We will be following the mileage pace chart times and cutoffs based on the Saturday clock.


Welcome to the 16th running of the Rio Del Lago 100 Mile Endurance Run. We are excited to have you join us for this premier 100 mile event. Whether this is your first or tenth 100 mile race, we know you will have an unforgettable experience from start to finish.

Quick Facts

This is a 100 mile race taking place on Saturday, November 5, 2016. The race will start at Beal's Point in the beautiful Sierra Foothills of California, about 40 minutes east of Sacramento.

Photo credit: Keith Facchnino

Race Videos

Watch the official race video by Stephen Porter:

Watch the race recap from

The Course


Rio Del Lago 100 begins at beautiful Beal’s Point, at Folsom Lake State Recreation Area in the Sierra-Nevada Foothills. With Folsom Lake as the sparkling backdrop you’ll traverse through Oak woodland and meadows, over bridges and creeks, up and down switchbacks and along the most spectacular trails in the area. This scenic 100 mile foot race combines 2 of The Best trail races in Northern California: American River 50 and Way Too Cool 50K.

The 100 mile course is a variety of terrains that novice and veteran runners alike will enjoy. Runners will begin their 100 mile journey running the perimeter of Beal’s Point to the American River Parkway. Out of Beal’s Point, the course then heads South on the American River Parkway to the historic Walker Bridge. The course will wind down under the Powerhouse and behind the Lake Natoma Inn hotel. The course remains on the south side of Lake Natoma on the American River Parkway through Willow Creek and then to the Aquatic Center. At the Aquatic Center, the course traverses across the bridge up to the Nimbus Bluffs.

Runners will ascend on a single track trail to the Hazel Bluffs. Upon descending from the Hazel Bluffs, the course will re-connect with the bike trail and intermix with fire roads and single track trails through Beal’s Point. After reaching Beal's Point, runners will enjoy single track trails and head north on the path worn by gold miners in search of riches: The Pioneer Express Trail, near the entrance of the Granite Bay State Park. Runners will continue to Granite Beach on the north side of Folsom Lake.

Runners leave Granite Beach and continue north towards Twin Rocks and Auburn, CA. Runners will pass through Horseshoe Bar and Rattlesnake Bar (no, we aren’t talking about stopping at local pubs, but rather passing over the sand bars that miners would pan gold from, but there ARE Aid Stations at each). The route continues to Power Plant, Avery's Pond, Dowdin's Post, and arrives at the base of Cardiac Hill. Runners will take a deep breath and then ascend up to Last Gasp to the Auburn Dam Overlook. Exiting the Overlook, runners descend on the Western States Trail to the notable 104 year old No Hands Bridge.

From No Hands Bridge, runners will cross Highway 49 at Lower Quarry. The Rio course now joins forces with the iconic Way Too Cool 50K course. You will run along the scenic Quarry Road until you reach Main Bar. You will make your way to Auburn Lake Trails, Goat Hill and descend down to the Upper Highway 49 crossing. From Upper Highway 49, you will follow the WS trail back to the meadow which will then bring you down the luge as you return to No Hands Bridge.

From No Hands Bridge, runners will re-trace their footsteps back to the Auburn Overlook (running DOWN Last Gasp, take that!) From there, runners follow the trails back through Cardiac, Rattlesnake Bar, Horseshoe Bar, Twin Rocks to Beal’s Point to cross the finish line and celebrate!

Course Map & Elevation

Rio del Lago 100 mile course map

Aid Stations & Restrooms (click to download)

pace chart

Click to download Aid Station / Pace Chart
Click here to view portable restroom locations.

Aid stations will be stocked with:

  • Roctane Engery Gel and Roctane Energy Drink
  • Clif Bars
  • Water, Coke/Pepsi, 7-Up, Ginger Ale
  • Boiled potatoes and a complete line of ultra sweet and salty foods
  • Night time aid stations will have hot soup, hot chocolate, quesadillas and grilled cheese
  • We highly recommend you carry two water bottles

Soup and hot food will be available at the following aid stations:

  • Granite Beach
  • Horseshoe Bar
  • Rattlesnake Bar
  • Overlook
  • No Hands Bridge
  • Auburn Lake Trails
  • Main Bar will be an express self service station with Water, GU Roctane, GU Roctane Energy Gels ONLY!

Please familiarize yourself with our aid station check points and note that there is NO CREW access at:

  • Willow Creek
  • Negro Bar
  • Horseshoe Bar
  • Last Gasp
  • No Hands Bridge
  • Main Bar
  • Auburn Lake Trails
  • Highway 49
  • Granite Beach (on return to the finish)

**Crewing at one of these locations can result in runner disqualification. Thank you for your cooperation and understanding.

Rio Del Lago 100 Mile Endurance Run began in 2000 by Norm and Helen Klein. Sign up and keep the tradition going.

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Race Information

This is a 100 mile race taking place on Saturday, November 5, 2016. The race will start at Beal's Point in the beautiful Sierra Foothills of California, about 40 minutes east of Sacramento.

No refunds, transfers or rollovers.

Participants will receive the following items:

  • Well stocked and themed aid stations
  • Enthusiastic volunteers
  • Technical Shirt
  • Finisher's Jacket (for those finishing sub-30 hours)
  • Finisher's Belt Buckles (for those finishing sub-30 hours)
  • Finisher's medallion
  • Goodie Swag Bag
  • Night time and sunrise breakfast
  • Post race festival

Volunteer Requirement

Each Rio Del Lago 100 runner is required to volunteer a minimum of 6 hours of service towards trail maintenance, a trail or road race event between January 1, 2016 and October 1, 2016 as a condition for participation at the 2016 event. Download our volunteer service form here.

Race Check In

All runners must check in on Thursday or Friday, November 3 or 4, 2016 at:

  • Fleet Feet - Folsom
  • 6610 Folsom-Auburn Rd, Folsom, CA 95630
  • Phone : 916-358-9484
  • Entry into the Beal's Point Park on Saturday/Sunday morning is included in your registration. This parking pass is only good for Beal's Point Park. You must purchase parking passes for all other park accesses.

    You must print out this parking pass and place on your dashboard Saturday/Sunday.

    You can find your bib numbers by clicking here.

    For more information about Folsom State Recreation Area, click here.

    • All participants must pick up their number on Thursday, November 3rd from 3PM to 7PM or Friday, November 4th from 1PM to 7PM at Fleet Feet - Folsom.
    • There will be a course briefing at 4:30 A.M. on Saturday morning before the race starts.
    • Drop bags will be collected on Saturday starting 4:00 A.M. until 4:45 A.M.

    Drop Bags & Pacers

    Drop Bags

    • All drop bags are collected on race morning at the start.
    • Please look for the proper sign with your desired location.
    • Please label your drop bag with your name and bib number.
    • Drop bags should not be larger than 12" x 18"
    • Pacers may have a drop bag at Beal's Point and can bring upon arrival. If a pacer needs a drop bag on course, it must be left at the start on race morning.
    • Please do NOT leave any valuables including keys, iPods, cell phones, etc in your drop bag.
    • NorCalUltras is NOT responsible for the loss of any drop bags.
    • It is the responsibility of each runner to claim his or her drop bags. If you cannot retrieve your drop bags, have someone else do it for you. Drop bags must be claimed by 1:00 PM, Sunday.
    • Drop Bags will NOT be mailed to anyone. Any drop bags not picked up by 1PM will be gathered up and a team will go thru the bags and dispose of anything perishable and then donate all remaining clothing/shoes/bags/bottles/etc... to a local shelter.


    • Pacers can ONLY join a runner at the Overlook on the outbound (mile 44.52), No Hands Bridge on the outboud (mile 48.52) and the inbound/return (mile 70.72), the Overlook on the inbound/return (mile 74.72) and also at Rattlesnake Bar (mile 83.78).
    • You may have more than one pacer to help you get to the finish line, but runners may be accompanied by no more than one pacer at a time.
    • Pacers do not need to check in prior to running, but, need to clearly identify themselves at every aid station.
    • Pacers should be well conditioned to travel the distance with their runner.
    • Pacers are responsible for their own transportation to and from their starting location. Race management will not organize or facilitate any shuttle.
    • Pacers may eat and drink from the aid station tables. Pacers must enter and exit with their runner. No "muling" is allowed. "Muling" is when a pacer carries any supplies (drinks, food, clothing, etc) for the runner outside of the aid station area.
    • No trekking poles, no dogs, no bikes, no horses.

    Drop Bag Locations

    • Beale's Point (Start, Mile 19.2 and Finish)
    • Rattlesnake Bar (Miles 35.46 and 83.78)
    • Overlook (Miles 44.52 and 74.72)
    • Auburn Lake Trails (Mile 58.82)

    Drop Bag Return

    All drop bags must be retrieved at the finish line on event weekend. If you must leave early, please have a friend or family member pick up your drop bag. Any unclaimed drop bags remaining after the finish will be donated to charity on Monday following the race. We will NOT mail drop bags after the event. Thank you for your cooperation and understanding with our updated policy. Race management works very hard to expedite drop bag retrieval in a timely manner. However, we ask for your patience. All drop bags on course will not be returned to Beal's Point (finish line) until the aid station is officially closed. If you need your bag sooner, please make arrangements to retrieve them from the aid station. Thanks for your understanding and assistance with these guidelines.

    Crew Driving Instructions

    Excellent areas from which to view runners are Beal’s Point, Granite Bay Horse Assembly, Rattlesnake Bar, and the Auburn Dam Overlook.

    Park fees: Rio Del Lago travels through the California State Parks – Gold Fields District and the Auburn State Recreation Area.

    All crewing and viewing areas are located in the California State Parks District and require a ($12) fee per vehicle unless you have a Golden Poppy Pass. If you frequently patron the Rio Del Lago trails (also home to AR50, Way Too Cool), please consider supporting the CA State Parks and purchase a Golden Poppy Pass.

    Crews are responsible for paying the day use fees ($12) for entrance in to the State Parks. If there is not a ranger present at the kiosk in to the parks, you are still responsible for self-payment through their drop box as you enter the parks. Crews need only to pay one time at a State Parks kiosk, but must show their receipt upon entry to each park at the entrance.

    • Please observe all posted signage and placards by the CA State Parks and Auburn Recreation Park District.
    • NorCalUltras will not be responsible for any violations or tickets.
    • No Crewing at “No Crew locations”.
    • ** Crewing at one of these locations can result in runner disqualification.

    Tips for Crewing
    Ultra runners really like a little extra TLC that can only come from friends and family. That's where Crew Teams come in to play. If you have agreed to be part of a Crew you are in for a great time! Here are some tips and pointers to make your crew experience as enjoyable as a gig like this could possibly be...

    Crew Driving Directions
    Click here to view driving directions for all accessible areas.

    Lodging Information

    folsom tourism Welcome to the City of Folsom and the new start line of the 16th Annual Rio Del Lago 100 Mile Endurance Run! We invite you to explore all of the outdoor recreation, attractions, fine dining and shopping that Folsom has to offer. Visit

    All of our Rio del Lago 100 guests staying at our Folsom Hotels will receive:

    When booking...

    • Be sure to ask for the Rio Del Lago rate to get the special room prices.
    • Be sure to ask about deposits and refund policies as they may vary from hotel to hotel.



    Rio Del Lago Host Hotel
    Lake Natoma Inn

    702 Gold Lake Drive
    Folsom, CA 95630
    (916) 932-2751
    Click here for 2016 reservations
    *Rates start at $89 a night for single or double occupancy


    Larkspur Landing

    121 Iron Point Road
    Folsom, CA 95630
    (916) 355-1616
    Rio Del Lago 2016 - Reserve Today!
    *Studios $89/night and Excutive Rooms $109/night. Includes breakfast.


    Courtyard by Marriott

    2575 Iron Point Road
    Folsom, CA 95630
    (916) 984-7624
    Book your group rate at the Courtyard By Marriott Folsom
    Must reserve by: October 21, 2016
    *King Bed $114/night and Double Queen $124/night.


    Residence Inn by Marriott

    2555 Iron Point Road
    Folsom, CA 95630
    (916) 983-7289
    Book your group rate at the Residence Inn by Marriott Folsom
    Must reserve by: October 21, 2016
    *Studio King Bed $129/night and One Bedroom Queen Bed $129/night.


    Hampton Inn and Suites

    155 Placerville Road
    Folsom, CA 95630
    (916) 235-7744
    Must reserve by: Oct 27, 2016
    *Includes breakfast Click here for reservations
    *Studio King Bed $99/night and Double Queen $99/night. Group Code - DEL


    Hilton Garden Inn

    221 Iron Point Road
    Folsom, CA 95630
    (916) 353-1717
    *$129.00 - Mention Rio 100 Mile Endurance Run, Group Code LAGO when booking
    Click here for 2016 reservations


    Staybridge Suites

    1745 Cavitt Drive
    Folsom, CA 95630
    *$119 - Mention Rio 100 Mile Endurance Run. Includes a full hot breakfast.

    Medical Information

    • Our medical team is comprised of EMT’s, Paramedics, RN’s, MD’s. They all are trail runners who have the knowledge, expertise and understanding of running an endurance event. The medical team will offer share some helpful hints as well as things to be aware of.
    • There are 3 medical stations on course staffed by our medical team: at the Start/Finish, the Overlook and at Rattlesnake Bar (on the return), but a medical check is NOT required.
    • It is important that you take care of your body with fluids and fuel for the entire 100 miles.
    • Know your limits and know your body!
    • * Medical personnel have the authority to pull a runner from the race at any time.

    Post Race Festival

    You came to Rio Del Lago to run 100 miles, but you'll want to stay long after the race for the post celebration eats.

    Catering to the hungry Rio 100 mile finishers:

    Bobs Bistro
    • Bob's Bistro
    • 6 A.M. – 12 noon on Sunday
    • Happy Hundred Hot Cakes
    • Bob's Famous Hash Browns
    • Crack of Dawn Scrambled Eggs
    • Succulent Carnivorous Sausage
    • Sizzling Bacon – Just the way Porky Pig would want it!
    • Fresh and Juicy Fruit
    • Wide eyed Cup o' Joe
    • Steaming Hot Chocolate topped with whipped cream and chocolate sprinkles
    • Homemade veggie soup from Chef Tim Ruffino will warm you down to your toes and fill you up after your 100 mile journey.
    • Breakfast Menu

    Race Beneficiaries

    • California Conservation of Trails (CCOT) - The CCOT is a non-profit group that helps to maintain and protect our local trails. The CCOT provides race day support and coordination of our mounted sweeps. This group is very active in our community and always enjoy helping while having fun too!
    • RunningSchool
    • Wings for Life

    wings for life


    Rio 100 Mile Endurance Run Coaching/Training
    Contact Tom Flahavan

    The average high temparature for November is 66 degrees.
    The average low has been 42 degrees. Bring gear for any situation.

    Get Registered

    "Your toughness is made up of equal parts persistence and experience. You don't so much outrun your opponents as outlast and outsmart them, and the toughest opponent of all is the one inside your head." - Joe Henderson

    Contact Us

    Julie Fingar
    Race Director

    Race Information

    Aid Stations and Course


    Volunteers are the life blood of any event. We need your support! Please consider giving back to the sport through your volunteer contribution. Volunteer hours can be credited for ultra marathon service requirements. For spouses or friends of participants, this is a great way to enjoy and experience the event. Each volunteer will receive a technical hat, race bandana and post race food from Joe's Café and Bob's Bistro.

    Click here to inquire about volunteering.

    Our Sponsors