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


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

9,500 feet. Click here for elevation chart.

Course Map:
Click here for map.


The Rio Del Lago 100 mile course had been changed for 2015 event! The course continues to be challenging but also ensures the safest possible journey for all 350 runners! The out and back from Beal's Point to Horseshoe bar, mile 78 to 100, has been eliminated to avoid 2‐way traffic through this rocky section in the wee hours of the morning. This section has been replaced with an early loop, mile 0 to 19, along the American River Parkway with a few other small additions to make sure you get all 100+ miles in the bag!

The Rio Del Lago 100 course begins and ends at Beal’s Point, Folsom Lake State Recreation Area, in the beautiful Sierra‐Nevada Foothills and covers a variety of terrains that novice and veteran runners alike will enjoy. With Folsom Lake (what’s left of it) as the sparkling backdrop, runners will 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.

Runners will begin their 100 mile journey running the perimeter of Beal’s Point to the American River Parkway (ARP) bike path. Runners will follow the ARP bike path south to the historic Walker Bridge. Once across the Bridge, the course descends past the Powerhouse and winds behind the Lake Natoma Inn hotel. Runners will continue along the south side of Lake Natoma to the Willow Creek Aid Station (mile 7.0) then on towards the Sacramento State Aquatic Center at Hazel Avenue.

Runners will follow the ARP bike path past Sacramento State Aquatic Center, across the Hazel Bridge, and ascend the single track trail to the Nimbus Bluffs. From the Nimbus Bluffs the course descends and reconnects with the ARP bike path for a short distance then follows a mix of fire roads, the ARP bike path, and single track trails to the Negro Bar Aid Station (mile 14.5).

From Negro Bar, runners return to the Beal’s Point Aid Station (mile 19.2) then head northnortheast along the historic Pioneer Express Trail (traveled by many a gold miner in search of riches during the gold rush ‐ 1848 to 1855) to the entrance of the Granite Bay, Folsom Lake Recreation Area Entrance. From the Granite Bay entrance runners will follow the trail and cross over to the Granite Beach Aid Station (mile 24.3) on the north shore of Folsom Lake.

Runners will head northeast towards Twin Rocks after leaving Granite Beach. At Twin Rocks runners will divert onto a 2.2 mile popular mountain bike loop before reconnecting with the Pioneer Express Trail and continuing towards Auburn, CA. On the way to Auburn, runners will find aid at Horseshoe Bar Aid Station (mile 33) and Rattlesnake Bar Aid Station (mile 35.8); no we aren’t talking about stopping at local pubs, but rather passing over the sand bars where miners would pan for gold! The route continues along sweet rolling single track trails, passing by Avery's Pond, the Power Plant, and Dowdin’s Post until it reaches the base of Cardiac Hill. At the base of Cardiac Hill, no you don’t have to climb Cardiac Hill; runners will take a deep breath and begin the steady climb up the gravel road to Last Gasp then on up to the Auburn Horse Assembly Aid Station (mile 44.9).

Exiting the Auburn Horse Assembly area, runners will follow the Western States Trail to the notable 103 year Mt. Quarries bridge a.k.a. as “No Hands Bridge” and the No Hands Bridge Aid Station (mile 48.2). From No Hands Bridge, runners will continue along the Western States trail and wind and climb their way to the Cool Aid Station (mile 51.4) behind the Cool, CA fire station.

Runners will exit the Cool Aid Station and being the first of two loops along the first part of the Way Too Cool course. The Cool loop follows the paved Haul Road for 1.25 miles before heading left onto single track trails. The next 8 miles cover some of the most scenic and beautiful sections of the Olmstead Loop trail and Secret trail with breathtaking views of the American River Canyon. Runners will loop back to the Cool Aid Station (mile 59.4) then run this Cool loop again but in reverse arriving back at the Cool Aid Station (mile 67.4).

Pacers can join a runner before the 1st Cool Loop (mile 51.4), 2nd Cool Loop (mile 59.4), or when the runner is leaving Cool (mile 67.4) for the return trip.

From Cool, runners will retrace their steps back along the Western States trail to No Hands Bridge (mile 70.5) and then up to the Auburn Horse Assembly (mile 73.9). From the Auburn Horse Assembly runners will retrace their steps, running DOWN Last Gasp and continuing past the base of Cardiac Hill, on to Rattlesnake Bar (mile 82.9) where a pacer can be picked up, Horseshoe Bar (mile 85.7), Twin Rocks, and finally Beal’s Point (mile 100.8) across the finish line to 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:

  • Blue Pom and Island Nectar Roctane Gel
  • Tropical Fruit and Grape Roctane Energy Drink
  • 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

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
  • 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 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 Friday, November 4, 2016 at Beal's Point, Folsom Lake. Click here for Google Map. Entry in to the park on Friday/Saturday is included in your registration.

You must print out this parking pass and place on your dashboard Friday.

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 during the hours of 2 P.M. and 4 P.M.
  • There will be a course briefing at 3 P.M. followed by a medical briefing.
  • Drop bags will be collected on Saturday.

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.


  • Pacers can join a runner before the 1st Cool Loop (mile 51.4), 2nd Cool Loop (mile 59.4), or when the runner is leaving Cool (mile 67.4) for the return trip
  • Pacers may also join runners at Rattlesnake Bar (mile 82.95)
  • 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 35.83 and 82.95)
  • Cool Fire Station #1 and #2 (Miles 51.39, 59.39 and 67.39)

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 on race evening 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. Thanks for your understanding and assistance with these guidelines.

Crew Driving Instructions

Excellent areas from which to view runners are Beal’s Point, Granite Beach, Rattlesnake Bar, and the Cool Fire Station.

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, Sierra Nevada and 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 County and CA State Parks.
  • NorCalUltras will not be responsible for any violations or tickets.
  • Absolutely no crews are allowed at Willow Creek, Negro Bar, Horseshoe Bar, Last Gasp, Auburn Horse Assembly and No Hands Bridge

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 tourismWelcome 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:

  • Welcome Package
  • Access to the Rio Del Lago/Folsom Tourism Bureau VIP Hospitality Tent at the start line

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 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 2015 - Reserve Today!
*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 16, 2015
*King Bed $109/night and Double Queen $119/night. Call directly at 916-984-7624 and mention group code "RIOS". Includes a grab and go breakfast.


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 16, 2015
*Studio King Bed $119/night and One Bedroom Queen Bed $119/night. Call directly at 916-983-7289 and mention group code "RIOS".


Hampton Inn and Suites

155 Placerville Road
Folsom, CA 95630
(916) 235-7744
Must reserve by: Oct 26, 2015
*Includes breakfast Click here for reservations


Hilton Garden Inn

221 Iron Point Road
Folsom, CA 95630
(916) 353-1717
*$109.00 which includes full cooked to order breakfast for up to two guests per room. Mention Rio 100 Mile Endurance Run when booking
Click here for reservations


Staybridge Suites

1745 Cavitt Drive
Folsom, CA 95630
*Includes a full hot breakfast. Cut-off date is October 16th 2015
Click here for reservations

Medical Information

  • There will be a short course briefing at 3 P.M. followed by a medical briefing from 3:30 P.M. – 4:00 P.M.
  • 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 2 medical stations on course staffed by our medical team: at the Start/Finish and at Cool, 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:

Joes Cafe Bobs Bistro
  • Joe's Cafe and Bob's Bistro
  • 8 P.M. – 12 noon
  • 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