The Mammoth 200 2027
The forecast arrives five days before the start.
Here you'll find the elevation profile, an estimated finish time based on your UTMB Index and details of the 22 aid stations to plan your nutrition and hydration segment by segment.
What's your time based on your UTMB?
Times estimated by the RAVIT model, learned from real ultra-trail finish times. Enter your UTMB Index (utmb.world) to get a personalized estimate.
Cut-off times and crew - The Mammoth 200 · 2027
Data from the official race rules, checked for every edition. The race rules prevail. Positions are interpolated along the GPX track and are a guide, not official course marking.
What you'll find at each aid station
| Product | Summit 1km 13.6 | Duck Passkm 27.7 | CRCkm 38.8 | Convict Lakekm 63.5 | Crowley Lakekm 84.0 | Toms Placekm 92.7 | Watterson Summitkm 108.7 | Sawmill Meadowkm 132.0 | Taylor Canyonkm 154.3 | Crooked Meadowskm 170.6 | Indiana Summitkm 184.6 | Crater Mountainkm 199.4 | Lee Viningkm 223.4 | Walker Lakekm 248.0 | Grant Lakekm 261.3 | Rush Creekkm 274.7 | June Mountainkm 280.7 | June Lake Junctionkm 296.6 | Upper Deadmankm 317.4 | Main Lodgekm 332.9 | Summit 2km 339.6 | Villagekm 350.8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available |
| Brand products | available | unavailable | available | available | available | unavailable | available | available | available | available | unavailable | available | available | available | available | unavailable | available | available | available | available | available | available |
La feuille de ton assistance pour The Mammoth 200 · 2027
Ton assistance peut te voir à ces postes. Ton plan RAVIT y met tes heures, ce qu'elle te tend et la route pour y aller.
- CRCkm 38.8
- Convict Lakekm 63.5
- Crowley Lakekm 84
- Watterson Summitkm 108.7
- Taylor Canyonkm 154.3
- Crooked Meadowskm 170.6
- Crater Mountainkm 199.4
- Lee Viningkm 223.4
- Grant Lakekm 261.3
- June Mountainkm 280.7
- June Lake Junctionkm 296.6
- Upper Deadmankm 317.4
- Main Lodgekm 332.9
Recto, verso et planche d'étiquettes, en PDF : l'exemple d'une coureuse de l'UTMB.
Elevation profile
The course and its aid stations
The Mammoth 200: times, aid-station stops and fuelling needs by UTMB® Index
Between a UTMB® Index of 500 and 800, the estimated finish time on this race runs from 71h08 to 43h49, and the aid-station stop budget from 15h16 to 6h33. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.
Source
| UTMB® Index | Estimated time | Of which stops | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|---|
| 500 | 71h08 | 15h16 | 30 | 4,268 g | 49.8 L | 35,567 mg | +37h52 |
| 550 | 66h30 | 13h11 | 26.5 | 3,990 g | 46.5 L | 33,249 mg | +42h30 |
| 600 | 61h47 | 11h26 | 21.8 | 3,707 g | 43.2 L | 30,888 mg | +47h13 |
| 650 | 56h22 | 9h48 | 20 | 3,382 g | 39.5 L | 28,180 mg | +52h38 |
| 700 | 51h42 | 8h30 | 20 | 3,102 g | 36.2 L | 25,853 mg | +57h18 |
| 750 | 47h27 | 7h25 | 20 | 2,847 g | 33.2 L | 23,722 mg | +61h33 |
| 800 | 43h49 | 6h33 | 17.8 | 2,629 g | 30.7 L | 21,912 mg | +65h11 |
Figures based on 60 g of carbohydrate, 700 mL of fluid and 500 mg of sodium per hour, "average" preparation and mild conditions (15–25 °C). Above 25 °C, count on roughly 900 mL/h and 700 mg/h. Carbohydrate intake is trained: 60 g/h is a floor, 90 g/h assumes a glucose-fructose blend and a gut used to it.
In the 2027 ranking
The Mammoth 200 is 351 km and 7,926 m of elevation gain, that's 430 km-effort: category XXL, among 59 races in 2027. Its time limit of 109 h requires a minimum speed of 3.2 km/h: rank 18 out of 51 of the widest cut-off times in XXL.
XXL ultra-trails 2027: 210 km-effort and above
Similar effort in 2027
- Eiger Ultra Trail - E250 - UNESCO Trail · 431 km-effort
- Tahoe 200 · 419 km-effort
- Wildhorse 200 South Wales · 417 km-effort
Other trails worth preparing for
- Across Florida 200321 km · 479 m D+ · November 11, 2026
- App 200325 km · 9,107 m D+ · March 10, 2027
- Southern States 200325 km · 8,926 m D+ · March 17, 2027
- Arizona Monster473 km · 10,622 m D+ · April 2, 2027
- Cocodona 250407 km · 8,305 m D+ · May 3, 2027
- Tahoe 200323 km · 9,743 m D+ · June 11, 2027
- MOAB 240389 km · 7,071 m D+ · October 9, 2026
- theMAMMOTH as of 8/5/2026351 km · 7,983 m D+ · October 2, 2026
The Mammoth 200 over the years
Sources and method
- Time projection — times by UTMB Index are taken from the actual splits of runners in each level band on previous editions of this race, aid station stops included. No formula is used as long as these results exist.
- Trail nutrition — hourly targets for carbohydrate, fluid and sodium follow the commonly accepted ultra-endurance guidance. La Clinique du Coureur — Fuelling in trail running
- Course, aid stations and cut-offs — taken from the event's official rules, which prevail in case of any discrepancy. Official site — The Mammoth 200
Weather for The Mammoth 200
The weather for The Mammoth 200 will appear here as soon as the forecast models reach that date, around five days before the start: feels-like temperature, rain, snow, wind and storms, section by section and at your passage time.
Detailed weather for The Mammoth 200, hour by hour on the courseFrequently asked questions
How many checkpoints?
The Mammoth 200 has 22 checkpoints: 18 aid stations and 4 water points. Details are in the two tables above.
What's the longest segment without aid?
The one leading to Convict Lake: 24.8 km and 526 m elevation gain. That's the one to load up for first.
How do I find the exact location of an aid station?
The Google Maps icon in the “Access” column opens the aid station's location: handy for planning your crew's routes.
What distance and elevation gain?
The Mammoth 200 is 351 km long with 7926 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 61h47 for The Mammoth 200.
What's the weather forecast?
The weather for The Mammoth 200 will be published on this page around five days before the start, once the forecast models reach the race date. It will be detailed section by section: feels-like temperature, rain, snow, wind and storms.
Want to stack the odds in your favor for The Mammoth 200?
In 2 minutes, RAVIT generates your complete plan: segment-by-segment time, carbs, water and sodium at every aid station, printable roadbook.
No card required · Instant results