Sacramento, CA, United States · Saturday, April 3, 2027

Fixed Distance 50 mi

American River 50 Mile Endurance Run

199 days away

80 km Distance

1,050 m Climbing

5.6 Grit · Challenging

38.5816° N, 121.4944° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 13 m / km Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.

Time limit 13 hours 9:45 min/km average. Comfortable. Room to walk the climbs and stop at aid. Tighter than 79% of 50 mi races. Measured against 455 races of the same distance. Cut-off calculator →

Field size ~143 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2026 edition (50mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, April

Daytime high 21°C

Night low 8°C

Rainfall Mostly dry

Daylight 12 h 41 m of light

Regional 2001-2020 average for April — NASA POWER, grid elevation 128 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a fast & flat course. Expect fast, runnable sections where rhythm is key.

By UltraHub Expert

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 80 km of trail with 1,050 m of ascent.

Trail Running Shoes80 km of trail — cushioning that is still there in the last quarter.
Race Nutrition80 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 80 km, without the bounce.
HeadlampsA 13 h limit puts you out there after dark.
GPS WatchesBattery life first — a 80 km day outlasts most full-GPS modes.

Salomon

Aero Glide 4 Grvl

$159.95 ★★★★★ 4.5

Brooks

Catamount 3

RunRepeat found the Brooks Catamount 3 to have a cozier upper that enhances the overall fit, though breathability and durability could be better. iRunFar noted…

★★★★★ 4.5

Maurten