Fuego XL is the long Sea Otter mountain-bike event. The organizer’s public pages, checked October 14, 2026, place it on Saturday, April 17, 2027, at about 70 miles with about 11,100 feet of elevation change, on a new 2027 course. Those figures are approximate and may change. This page does not invent aid stations, cutoff clocks, or a route map.
Distance
About 70 miles (organizer figure, approximate)
Elevation
About 11,100 feet of elevation change (organizer figure, approximate)
Typical duration
Several hours for most endurance riders; your target time is an input
Location
Monterey, California
Time of year
Saturday, April 17, 2027
Terrain
New 2027 course; geometry is not reproduced here
Download the free printable race-day fueling checklist for Sea Otter Fuego XL 2027
A practical race-week checklist: carbs, hydration, sodium, caffeine and race-day supplies — print it or keep it on your phone.
A ride this long needs a plan you can repeat for hours, including what happens if you slow down on the climbs.
Elevation change
About 11,100 feet of elevation change raises the chance that a flat-road carbohydrate rate will feel wrong. Adjust for your climbing pace rather than copying a road-race script.
Unpublished detail
Until the organizer locks the map, plan with distance, elevation, and your own pace. Do not assume last year’s feed zones.
Fueling challenges & strategy
General, evidence-based guidance. Numbers should always be personalized to sweat rate, body mass, fitness and weather.
Carbohydrate range
A common endurance starting range is about 60–90 grams of carbohydrate per hour for trained riders who have practiced that rate. Some riders tolerate less. The right rate is the one you have rehearsed, not a guarantee of performance.
Fluid and sodium
Fluid need often falls around 400–900 milliliters per hour in mild conditions and can be higher in heat or for heavy sweaters. Sodium often lands around 300–800 milligrams per hour. Use your sweat rate, not a festival average.
What this is not
These are planning ranges for healthy athletes who already tolerate the products. They are not medical advice, and they are not a promise that you will finish.
What most riders get wrong
01
Borrowing the XC plan
Fuego XC is a different race the next day. Its shorter duration does not prepare an XL bottle schedule.
02
Treating a cutoff rumor as a plan
Official timing notes belong on the organizer’s site. This guide does not publish cutoff times.
Why generic fueling plans don't work for Fuego XL
Two riders on the same start line can need very different fueling. FTP, target finish time, body mass, sweat rate, temperature, altitude adaptation, nutrition products and race goals all change the answer. A generic 60 g/hr recommendation is a starting point, not a plan.
FTP
Finish time
Body weight
Sweat rate
Weather
Products
Goals
Course
Related FuelQ resources
Free calculators, checklists and articles to help you personalize your Fuego XL plan.
Every athlete is different. FTP, finish time, body weight, sweat rate, weather, nutrition preferences and race goals all change what you should eat and drink.
FuelQ Pro builds a personalized race fueling strategy tuned to your ride — carbohydrate, hydration, sodium, caffeine and recovery, mapped to the course.
A Race Fueling Plan gives you a personalized strategy for this event. The free checklist helps you prepare the basics first: race-week setup, 48-hour prep, race morning, hydration, sodium, caffeine, aid stations, and backup calories.