Trail RunningUTMB Index Races

Quicksilver Endurance Runs

Trail Running covering 50 km to 100 km with up to 3,658 m D+ in San José (California, United States)

LocationSan José, California, United StatesShow on map(37.3382° N, 121.8863° W)
Date & StatusDate to be announcedDate TBA
First edition2009
Elevation gainUp to +3,658 m

Quicksilver Endurance Runs is an endurance sporting event in San José, California, US focused on Trail Running. First held in 2009, the event is an established fixture on the endurance calendar. It is part of UTMB Index Races. Key features include Mountain, Nature & Off-Road, High Altitude, Forest.

The race program comprises 2 competitions, including Quicksilver 100k (100 km, +3,658 m D+), and Quicksilver 50k (50 km, +1,830 m D+). The exact date for the next edition is currently open and will be announced by the organizer. Official race regulations, course details, and registration information are provided on the organizer's website (quicksilver-running.com).

Official website
Quicksilver Endurance Runs in San José (Work: "Alpine Ridge Trail Top Rocky Mountain NP 2024", Photo: Larry D. Moore, License: CC BY 4.0, Source: Wikimedia Commons)
"Alpine Ridge Trail Top Rocky Mountain NP 2024" · Photo: Larry D. Moore · Wikimedia CommonsCC BY 4.0
Cropped to 16:9 (960 × 540 px), WebP

Event characteristics

MountainNature & Off-RoadHigh AltitudeForest

Races & distances (2)

CompetitionDisciplineDistanceElevation gainAltitude rangeCourse typeCourse & profile
Quicksilver 100kTrail Running100 km+3,658 m1,150 m - 2,686 mLoop courseRoute & profile
Quicksilver 50kTrail Running50 km+1,830 m1,153 m - 1,922 mLoop courseRoute & profile
Course & Elevation Telemetry

Course route & map

Distance
100 km
Elevation gain
+3,658 m D+
Elevation loss
-3,658 m D-
Altitude range
1,150 m - 2,686 m
Gradient (Avg / Max)
7.3 % / 13.1 %
Course format
Loop course
100 km+3,658 m D+
Start (S)Finish (F)
N20406080FS37.3382° N, 121.8863° W

Elevation profile & course telemetry

Altitude from 1,150 m to 2,686 m above sea level (+3,658 m D+, -3,658 m D-)

Peak: 2,686 m·at 40 km·Ø 7.3 %
1,150 m1,662 m2,174 m2,686 m0 km20 km40 km60 km80 km100 km2,686 m
Event Information & Answers

Frequently asked questions (FAQ)

When and where does Quicksilver Endurance Runs take place?

Quicksilver Endurance Runs takes place in San José, California, US (start area at coordinates 37.3382° N, 121.8863° W). The exact date for the next edition is currently open and will be announced by the organizer.

What races and distances are offered at Quicksilver Endurance Runs?

The race program comprises 2 competitions, including Quicksilver 100k (100 km, +3,658 m D+), and Quicksilver 50k (50 km, +1,830 m D+). The competitions belong to Trail Running.

What is the course layout and elevation profile for Quicksilver Endurance Runs?

The main competition (Quicksilver 100k over 100 km) is designed as a loop course featuring +3,658 m of elevation gain and -3,658 m of elevation loss, ranging between 1,150 m and 2,686 m above sea level. An interactive course map with route visualization, elevation profile, and GPX export is available in the course section on this page.

Where can I find registration and official race rules for Quicksilver Endurance Runs?

Official race regulations, course details, and registration information are provided on the organizer's website (quicksilver-running.com).