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Tahoe Endurance Runs 100K | 25K

September 12 @ 5:00 am - September 13 @ 12:30 am PDT

|Recurring Event (See all)

An event every year that begins at 5:00 am on day second of September, repeating until September 13, 2023

The Tahoe 100k is a point to point exploration of the Tahoe Rim Trail and the Tahoe Basin. The route will take you on a magical journey from the East side of Lake Tahoe along the Rim Trail, through the mountains with views of Lake Tahoe, Sierra Nevada Mountains on an almost entirely single track course.

Trail Conditions: Single track, often smooth/dry soil with lots of granite/rock.

Registration: Opens Jan 1 at 9am PT on ultrasignup. No day of race registration for the 100k. We will offer day of race registration for the 25k if there are spots available. Register here for the 100k and 25k

Race Format: Point to Point. This format allows for maximum adventure since participants will be traversing all new terrain with no repetitions other than brief out and backs to a couple of aid stations. Participants will need to take a bus from the finish area to the race start – or alternately if they have crew they can have their crew drive them to the start. This way runner’s vehicles will be at the finish line.

Location: Finish line/Catch the Bus/Parking and Post Race Festivities will be at Sierra at Tahoe Resort in Twin Bridges, CA. Address: 1111 Sierra at Tahoe Rd, Twin Bridges, CA 95735

Start Location: Spooner Summit Trailhead, South Lake Tahoe

Date & Time: Buses will leave Sierra at Tahoe Resort at 5am for the start line.

Race Check In Options:

You may check in at Sierra at Tahoe Resort from 4am until 4:45am (for those catching the bus) or

You may check in from 5:30-6:20 at the race start location, Spooner Summit Trailhead. Keep in mind that there is NO PARKING allowed at the trailhead at Spooner Summit, drop offs ONLY and crew must park on Highway 50. No vehicles are allowed to be left at Spooner Trailhead during the race. We will take finishline drop bags from Spooner Summit to the finish for you.

Bus to Start: Buses begin boarding at 4:30am and leave at 5am sharp.

Dropping off Drop Bags: You may leave drop bags at the start (spooner summit) or at Sierra at Tahoe (where you catch the bus for the start).

Race Cut Off: 18 hours. Cut off will be at 12:30am Sunday, Sept 13 at the finish. Cut offs are strict and must be enforced for the safety of the runners and to respect the volunteers’ time. The individual cut offs for certain aid stations as follows:

mi 20.4 Heavenly Resort: 6 hours, 12:30pm

mi 35.4 Armstrong Pass: 10.25hrs, 4:45pm

mi 45.4 Big Meadow: 13.25hrs, 7:45pm

mi 53 Housewife Hill: 16hrs, 10:30pm

Elevation Gain/Loss: 10,564ft / 3,220m of ascent. 10,398ft / 3,169m descent.


September 12 @ 5:00 am PDT
September 13 @ 12:30 am PDT
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Sierra-at-Tahoe Resort
1111 Sierra-At-Tahoe Rd
Twin Bridges, CA 95735 United States
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Event details subject to change; check event websites for details.