2025 UPDATES: Course maps, Elevation Profiles and GPX files are up to date.
100 Mile Start: 5:00 AM Saturday
START LOCATION: WESTERN NEVADA COLLEGE, CARSON CITY, NEVADA
PACKET PICK-UP, PRE-RACE BRIEFING & DROP BAG COLLECTION
Friday 9:00 a.m. to 3:30 p.m.
WESTERN NEVADA COLLEGE
2201 W College Pkwy, Carson City, NV
100M packet pick-up, pre-race briefing and drop bag drop off is MANDATORY.
The RACE-DAY CHECK-IN is strictly to identify who is toeing the line and to pick-up your GPS tracker.
MANDATORY RACE BRIEFING
4:00 p.m. to 5:00 p.m. – WESTERN NEVADA COLLEGE The “MANDATORY” 100M race briefing will begin at 4:00 p.m. in the Ultra Lounge. It is highly recommended for pacers to attend this briefing but not mandatory. Runners are responsible to ensure their pacers are aware of all competition rules.
RACE MORNING
NO DOWNGRADES ON RACE DAY
There will be no change of distance during the race (i.e., an individual registered to run the 100M course MAY NOT downgrade to the 50M course once the event has started). Any runners who do not complete the entire distance for which they are registered will be disqualified and listed as DNF (Did Not Finish).
CUTOFF TIMES
Finish line cutoff for the 100-mile event is 5:00 p.m. on Sunday afternoon (36 hours).
100 Mile Pace & Cutoff Chart IS HERE!
DROP BAGS
100-MILE RUNNER DROP BAGS: Drop bags are allowed at Hobart, Tunnel Creek and Diamond Peak.
Drop bags for Hobart Aid Station are due at the drop off point at Packet Pick-up no later than 3:00 pm on Friday.
Tunnel Creek and Diamond Peak Drop Bags may be dropped off on Friday at Packet Pick-up or Saturday morning, although it is recommended that they be dropped off on Friday. All Finish Line drop bags should be taken to the Ultra Lounge area on race morning.
DROP BAG RETURN: Please be aware that drop bags will not be returned until Sunday at approximately 12:00 pm from Diamond Peak and approximately 3:00 pm from Tunnel Creek. Any unclaimed 100M drop bags will also be available at the finish line. Plan accordingly.
Finish Drop Bag retrieval will be available near the Finish Line/Ultra Lounge for runners who wish to leave drop bags before the race with plans to collect them once finished. All other drop bags will be delivered to the the start/finish area at Western Nevada College.
Runners are solely responsible for collecting their drop bags. ALL UNCLAIMED DROP BAGS REMAINING AT THE CONCLUSION OF THE EVENT WILL BE DISPOSED OF AT THE DISCRETION OF RACE MANAGEMENT. The Tahoe Rim Trail Endurance Runs is not responsible for mailing or shipping any unclaimed drop bags.
DROP BAG SPECIFICATIONS:
- NO larger than 10″wide X 8″tall X 20″ long and less than 20 pounds.
- Make sure drop bags are made of a durable material, no paper or cardboard containers.
- You are limited to one drop bag per aid station.
- Pacers are not allowed drop bags.
- NO ICE CHESTS OR COOLERS.
- ALL DROP BAGS MUST BE CLEARLY LABELED WITH NAME, BIB NUMBER AND DESIRED AID STATION.
- DO NOT LEAVE VALUABLES IN YOUR DROP BAGS. RACE MANAGEMENT IS NOT RESPONSIBLE FOR MISSING OR DAMAGED CONTENTS.
- DO NOT leave perishable items or glass bottles in your drop bags.
- Nighttime temperatures along the Tahoe Rim Trail Endurance Runs can drop into the low 30’s, even in July. Exposed ridge top sections commonly experience strong winds, even at night. You are strongly encouraged to leave warm clothing and an extra flashlight and batteries at the aid station you plan to visit at night. Onset of Hypothermia is one of the leading causes of drops at night!
PACER INFORMATION
Pacers are allowed solely as a safety consideration for fatigued runners in the remote and rugged backcountry areas of the Tahoe Rim Trail Endurance Runs. Absolutely no physical or mechanical aid may be given by the pacer to assist the runner over difficult sections of the trail (except in medical emergencies), and no food, fluids or supplies of any kind may be carried for the runner (no muling). 100-Mile pacers are allowed beginning at Diamond Peak Aid Station (mile 39.5) and at the second Diamond Peak A/S visit (mile 72). Runners may only have one safety runner at a time. Tunnel Creek does not have vehicle access. Aid station personnel will make no arrangements to transport pacers or crew.
No competitor who is not actually taking part in the competition shall accompany any competitor during the competition nor shall any competitor be permitted to receive aid or refreshment from anyone during the progress of the competition except within 100 meters on either side of the fully stocked aid stations.
Pacers must check in at the Diamond Peak aid station and will be issued a pacer bib number. This will help us make sure they are readily identifiable by our aid station staff, make sure we have enough food and beverage on the course for everyone and account for their safety in the same manner as our registered runners. Pacers should be self-sufficient, please leave Honey Stinger products for the runners. Pacers carry their own gels as they do not pay an entry fee. All pacers are required to sign an event waiver.
TRTER staff will make no arrangements to transport pacers or crew.
Looking for a PACER? Or want to PACE a RUNNER? The Runner/Pacer Forum is back for 2025! Be sure to check the lists and reach out to the runner or pacer that looks like a fit for you.
MEDICAL ARRANGEMENTS
There will be First Aid/CPR qualified individuals and radio and /or cell phone communications at each aid station. There will be medical staff at key aid stations and at the start/finish. Safety patrol personnel will be deployed within each division between aid stations.
AID STATION STAPLES
All aid stations feature:
- First Endurance EFS electrolyte replacement drink. This is a high quality drink and you can read more about it here: https://firstendurance.com/nutrition/efs-drink.html
- A variety of Honey Stinger Gels, Waffles and Chews
- S Caps
Our aid stations among the best stocked aid stations you will experience. During the daytime hours of the race the usual ultra-race fair with salty snacks and PB& J made with gluten free bread. Once the sun goes down the kitchens open and provide full hot meals and breakfast items in the early morning hours. Every aid station (except Bull Wheel, which is fluid-only type stop) will have at least one vegan option.
Course Description
The Tahoe Rim Trail 100-mile Endurance Run takes place on high elevation alpine and sub-alpine forest single track trails and dirt roads in the Carson Spur of the Sierra Nevada Mountains. The event is located on the east side of Lake Tahoe. All distances begin and end at the Western Nevada College in Carson City, Nevada, which is at 4,888 feet and is the lowest point on the course. The highest point of the event is just below the summit of 9,214-foot Snow Valley Peak (which also provides one of the best views on the course). The course is marked with highly visible fluorescent orange flagging with a highly reflective tip.
THE START at Western Nevada College immediately jumps onto a single-track trail leading to Ash Canyon Road. There will be a water-only stop, Kick Ash Water Station (mile 5.5), towards the top of Ash Canyon. From there you will use an old jeep road leading you to the highest point on course, Snow Valley Peak A/S. The distance to Snow Valley Peak AS is approximately 9.5 miles and 4,200 feet of climbing.
From there you will head south (left turn from the SVP A/S) on the Tahoe Rim Trail making your way to Spooner Lake for your second aid station, Stonehenge A/S, mile 16. There is a 3,000-foot descent and over 7 miles to get to this aid station. From Stonehenge A/S you will head up North Canyon Road approximately one mile before veering left to connect to the Marlette Lake Trail.
The Marlette Lake Trail meanders through conifers and aspen groves as it climbs approximately 1,500 feet before descending about ½ mile to the shore of tranquil Marlette Lake.
Upon reaching Marlette Lake (7823 feet) veer right and continue around the lake and climb on dirt roads to connect to the Tahoe Rim Trail. About ½ mile further, you will come to the Hobart A/S at 8120 feet and approximately 23 miles into the race. Get ready for a trail running party at this aid station. Famous for great food, smoothies, and a walk-up bar.
After leaving the Hobart A/S the Tahoe Rim Trail climbs past Marlette Peak (Photo Opportunity alert!) before descending on an awesome single track to the Tunnel Creek A/S 28 miles into the race. Tunnel Creek A/S will be your home base during this race. As a 100-mile runner you will come to this aid station 4 times. It is a perfect place for a drop bag for your nighttime clothing, headlamps, and extra hydration sources. This is a huge aid station with an amazing array of food choices, a medical staff and medical tent.
Pay attention to the directions from the aid station staff at this aid station. There are two directions you will come and go from this aid station! It is your responsibility to be familiar with the course instructions. Be sure you know where to go!
Tunnel Creek A/S, the 50M/100M course will travel approximately 7-miles north along a single-track section of the Tahoe Rim Trail. This section is mostly rolling with breath-taking views of both Lake Tahoe and Washoe Valley. The Bull Wheel A/S is a small water stop 3 miles from Tunnel Creek. DO NOT LEAVE THIS AID STATION WITHOUT A FULL HYDRATION PACK OR BOTTLES! You have about 8.5 miles before arriving at the Diamond Peak A/S. Many runners run out of fluids on this section. **I highly recommend using at least three hand bottles or a full hydration pack for this section of the course**
At the Tyrolean downhill trail junction the course makes a sharp left turn and drops down towards Incline Village, offering spectacular views of the North Shore of Lake Tahoe. This section of the course will provide views of Lake Tahoe not many people except locals have seen. The Tyrolean downhill trail will plunge down the mountain for approximately four miles and a loss of 2,000 feet of elevation, following the creek with many dives, twists and turns. (The course follows a single-track trail downhill. Within the first two miles after turning off the Tahoe Rim Trail, this section is a world class Mtn bike downhill trail. They have Supercross style jumps—stay off of them. There is no agreement to keep bikes off the trail, so they are flying downhill. Be aware of bikers, after two miles the trail becomes one with the Mtn bikes. It’s a good idea to not have music on in this section.) As the trail flattens out towards the bottom you will come into the Tyrolean Village area directly behind homes. *100 Milers – on your second pass in the middle of the night or early in the morning please be respectful of the residents there and keep the chatter to a minimum until you clear this area! Once you come to the Diamond Peak Lodge parking lot area, proceed to the lodge where the aid station is located.
This is the Diamond Peak Sharon Fong Memorial A/S for mile 39.5 (10:00 pm cut-off) and mile 72 (8:00 am cut-off). Again, a great aid station with many food options, indoor bathrooms, a place to warm up at night and the only spot to meet your crew. This A/S has medical staff available. It is imperative that your crew members only park in designated parking spots and not clog the roadway. During the event, the race is accountable for keeping the roadway accessible by residents of Tyrolean Village and the Fire Department!
There is absolutely no crewing outside of the aid station! Crews that do not adhere to this will result in their runner being DQ’d from the race. Yes – it is that important!
From there, the course will follow the dirt service road up the ski run and onto the Crystal Ridge ski run, then up and over the top of Diamond Peak resort at 8540 ft for a 1700-foot climb in just under 2 miles. This climb is steep! Take your time, it will not make or break your race. Stop and catch your breath and turn around for the most spectacular view of Lake Tahoe you will see on the entire course. When you reach the top of the ski run (bull wheel), a sharp right-hand turn will drop you down to the Bull Wheel A/S (water and electrolyte drink only. No Food and No Ice). Turn right (south) onto the Tahoe Rim Trail. The course then returns to the Tunnel Creek A/S 3 miles south for the second time.
From the Tunnel Creek A/S, the course will follow the Tahoe Rim Trail south (straight through the A/S) back towards the Hobart A/S. During the daytime, this 5-mile section will be hot. Leaving the Hobart A/S you will come to a flat road intersection. You cross the road and veer left continuing on the Tahoe Rim Trail. If you get on a dirt road here you are going the wrong way! It will be well marked with direction arrows. You will be on TRT for three spectacular miles climbing 1000 feet to the Snow Valley Peak A/S at 52.5 miles.
Snow Valley Peak A/S is your turn-around point! Time to double back (North) on the Tahoe Rim Trail all the way back to Hobart A/S. Be sure to let the staff there know that you are returning from Snow Valley Peak. Pay attention to the directions from the aid station staff at this aid station. It is your responsibility to be familiar with the course instructions. Be sure you know where to go!
You are now on your second lap: You repeat the same route from Hobart to Tunnel Creek to Bull Wheel and all the way to Diamond Peak (mile 72). Back up to Bull Wheel, to Tunnel Creek (mile 77), and back to Hobart for the final time at mile 82. Pay attention to instructions!
Leaving Hobart A/S for the fourth and final time, you will go back (south) on the Tahoe Rim Trail for about a half mile; the intersection will lead you onto the new Capital 2 Tahoe Trail. There will be a sign that says, Capital to Tahoe Trail TO FINISH. After about 2 miles it will come to a road, you will cross the road and continue on this trail for 2.25 miles. (This is the same trail you took on the initial climb from the start) But instead of going up to Snow Valley Peak, you will make a sharp left turn and continue down the C2T trail. There will be a sign that says, Capital to Tahoe Trail TO FINISH. You will continue on this trail for about 5.5 miles to Waterfall A/S. All single-track trail with lots of trees and shade. (Be sure to leave Hobart A/S with full water packs or bottles as it will be 10+ miles without an aid station!)
This section of single-track, called the Capital 2 Tahoe trail, is well-shaded and weaves through the forest, ending at the Waterfall A/S. Here, prepare yourself for another fun and flowy section of single-track, albeit exposed and dropping into the hot temperatures (90s!) of the valley. This is the Ash to Kings trail. Again you are still approximately 7 miles from the finish, do not leave without topping off your packs/ bottles! The Ash to Kings trail merges with the Ash Creek trail and back to the start/finish area inside the baseball stadium at Western Nevada College. In all, this new course totals approximately 102 miles and 18,140 feet of elevation gain and similar elevation loss.
The nighttime is when these aid stations come alive. You will be amazed at the food they will have for you and the level of support you will find. Remember there are no areas for crew to take care of you. You must rely on these amazing aid stations.
Keep in mind this course averages about 8,000 feet of elevation. It will get cold at night no matter how warm it gets during the day. But also keep in mind the finish line is in Carson City – in mid-July the afternoon temperatures will be in the mid-90’s!!! Also, the air is very dry, normally less than 10% humidity. Follow the best guidelines from the Sports Medicine Science and drink to thirst. We will have plenty of water and First Endurance EFS electrolyte drink. Also make sure to have layers to ward off the cold at night.
Qualifying Standards
- All individuals registering for the 100-Mile event MUST meet the “Qualification Standards” BY THE TIME OF REGISTRATION for the 2025 event.
- All registrants must meet at least one of the following qualification times. Proof that Qualification Standards have been met must be verifiable by official race results on Ultra Signup or results listed in Ultrarunning Magazine. Virtual Races will NOT be considered. Qualifying Times:
- 50 miles in less than 15 hours or the TRTER 56-Miler in less than 18 hours
- 100 kilometers in less than 22 hours
- Completion of any OFFICIAL 100-mile trail race
- The qualifying period is July 1, 2023 to time of registration.
- Registration officials will confirm that Qualification Standards were fulfilled by verifying the qualification information provided during the registration process. (If an individual registers for the Tahoe Rim Trail 100-Mile Endurance Run but proof of qualification cannot be confirmed the individual WILL NOT be allowed to participate. Refunds WILL NOT be issued). If you have completed a qualifying event but the results have not been posted at the time of registration contact the event’s Race Director.
TRTER 100M – VOLUNTEER REQUIREMENTS 100 Mile Trail Work Volunteer Form – View/Download PDF
Eight (8) hours of volunteer work is required for each 100-mile participant prior to the event. These hours must be accrued while performing trail construction or maintenance (preferably, but not necessarily, on the Tahoe Rim Trail).
The volunteer service must be performed between July 1, 2024 and July 1, 2025. All completed Volunteer Forms must be submitted to George Ruiz no later than 6:00 pm, July 1, 2025. Forms can be emailed to trter100@gmail.com or mailed to PO Box 1483 Carson City NV 89702. If forms are not received by the deadline, 100 Mile entrants will be moved to the 56 Mile event without a refund.
IMPORTANT NOTE: It is the responsibility of the registered runner to assure the Volunteer Requirements are completed and submitted in a timely manner. Race Registration staff WILL NOT send reminder notices.
Note: Our event works with the staff of the Tahoe Rim Trail Association to schedule a “Tahoe Rim Trail Endurance Runs” trail maintenance weekend. We will post details here once the dates are confirmed. To individually volunteer for trail maintenance on the Tahoe Rim Trail visit: http://www.tahoerimtrail.org/
100 Mile Course Map
TRTER 100 MILE 2025 GPX DOWNLOAD
Course Profile
