Hardrock 100 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 13 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 - Hardrock 100 · 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 | KTkm 18.8 | Chapmankm 29.7 | Telluridekm 44.5 | Kroger'skm 52.4 | Governorkm 57.2 | Ouraykm 70.4 | Engineerkm 83.1 | Grouse Gulchkm 94.6 | Burrowskm 108.8 | Shermankm 115.1 | Pole Creekkm 132.7 | Maggiekm 139.5 | Cunninghamkm 148.7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water | available | available | available | available | available | available | available | available | available | available | available | available | available |
| Brand products | available | available | available | available | available | available | available | available | available | available | available | available | available |
La feuille de ton assistance pour Hardrock 100 · 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.
Recto, verso et planche d'étiquettes, en PDF : l'exemple d'une coureuse de l'UTMB.
Elevation profile
The course and its aid stations
Hardrock 100: 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 41h45 to 26h07, and the aid-station stop budget from 6h49 to 1h32. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.
Source
Below a UTMB® Index of roughly 395, the overall cut-off of 48h00 is no longer reachable at the estimated pace.
| UTMB® Index | Estimated time | Of which stops | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|---|
| 500 | 41h45 | 6h49 | 13.8 | 2,505 g | 29.2 L | 20,876 mg | +6h15 |
| 550 | 38h59 | 5h47 | 11 | 2,339 g | 27.3 L | 19,489 mg | +9h01 |
| 600 | 36h11 | 4h48 | 11 | 2,171 g | 25.3 L | 18,091 mg | +11h49 |
| 650 | 33h23 | 3h49 | 11 | 2,003 g | 23.4 L | 16,690 mg | +14h37 |
| 700 | 30h46 | 2h52 | 11 | 1,846 g | 21.5 L | 15,387 mg | +17h14 |
| 750 | 28h09 | 2h02 | 11 | 1,689 g | 19.7 L | 14,077 mg | +19h51 |
| 800 | 26h07 | 1h32 | 11 | 1,567 g | 18.3 L | 13,059 mg | +21h53 |
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
Hardrock 100 is 164 km and 9,690 m of elevation gain, that's 260 km-effort: category XXL, among 59 races in 2027. Its time limit of 48 h requires a minimum speed of 3.4 km/h: rank 23 out of 51 of the widest cut-off times in XXL.
XXL ultra-trails 2027: 210 km-effort and above
Similar effort in 2027
- Eryri by UTMB® - Eryri 100M · 257 km-effort
- KAT100 by UTMB - 100 Miles · 264 km-effort
- Val D'Aran - VDA - Torn dera Val d'Aran · 265 km-effort
Other trails worth preparing for
- Pinhoti 100162 km · 3,750 m D+ · October 31, 2026
- Javelina Jundred 100 miler158 km · 1,688 m D+ · October 31, 2026
- Mamba 100161 km · 143 m D+ · November 6, 2026
- Tunnel Hill 100161 km · 355 m D+ · November 7, 2026
- Mountain Masochist 100k101 km · 3,268 m D+ · November 7, 2026
- Rio Del Lago161 km · 2,697 m D+ · November 7, 2026
- Jackson County Ultras100 km · 2,491 m D+ · December 5, 2026
- Devil Dog Ultra 100k100 km · 1,820 m D+ · December 5, 2026
- Spirit of Syllamo 100152 km · 5,023 m D+ · December 12, 2026
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 — Hardrock 100
Weather for Hardrock 100
The weather for Hardrock 100 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 Hardrock 100, hour by hour on the courseFrequently asked questions
How many checkpoints?
Hardrock 100 has 14 checkpoints: 13 aid stations and 1 checkpoint with undocumented contents. Details are in the two tables above.
What's the longest segment without aid?
The one leading to KT: 18.8 km and 1,251 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?
Hardrock 100 is 164 km long with 9690 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 36h11 for Hardrock 100.
What's the weather forecast?
The weather for Hardrock 100 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 Hardrock 100?
In 2 minutes, RAVIT generates your complete plan: segment-by-segment time, carbs, water and sodium at every aid station, printable roadbook.
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