Looking Glass 100K 2026
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 10 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 - Looking Glass 100K · 2026
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 | Fish Hatchery Aid (1)km 15.3 | Gloucester Gap Aidkm 23.4 | Black Balsam Aidkm 33.4 | Skinny Dip Aidkm 47.3 | Cove Creek Aid (1)km 57.9 | Camp Bridge Aidkm 70.1 | Cove Creek Aid (2)km 75.9 | Fish Hatchery Aid (2)km 82.7 | Horse Cover Water Stopkm 89.7 | Start/Finish - Race HQkm 97.7 |
|---|---|---|---|---|---|---|---|---|---|---|
| Water | available | available | available | available | available | available | available | available | available | available |
| Brand products | available | available | available | available | available | available | available | available | unavailable | available |
La feuille de ton assistance pour Looking Glass 100K · 2026
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
Looking Glass 100K: 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 16h08 to 9h38, and the aid-station stop budget from 0h55 to 0h18. 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 |
|---|---|---|---|---|---|---|
| 500 | 16h08 | 0h55 | 3 | 968 g | 11.3 L | 8,064 mg |
| 550 | 14h42 | 0h44 | 3 | 882 g | 10.3 L | 7,354 mg |
| 600 | 13h08 | 0h35 | 3 | 788 g | 9.2 L | 6,564 mg |
| 650 | 12h10 | 0h30 | 3 | 730 g | 8.5 L | 6,082 mg |
| 700 | 11h13 | 0h25 | 3 | 673 g | 7.9 L | 5,608 mg |
| 750 | 10h20 | 0h21 | 3 | 620 g | 7.2 L | 5,168 mg |
| 800 | 9h38 | 0h18 | 3 | 578 g | 6.7 L | 4,816 mg |
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.
Other trails worth preparing for
- Javelina 100k97 km · 1,053 m D+ · October 31, 2026
- Tunnel Hill 5081 km · 182 m D+ · November 7, 2026
- Mountain Masochist 100k101 km · 3,268 m D+ · November 7, 2026
- Mountain Masochist 5081 km · 2,311 m D+ · November 7, 2026
- Pass Mountain 50 Mile81 km · 1,602 m D+ · November 14, 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
- Bandera 100k100 km · 1,891 m D+ · January 9, 2027
- Big Bend 5080 km · 907 m D+ · January 17, 2027
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 — Looking Glass 100K
Weather for Looking Glass 100K
The weather for Looking Glass 100K 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 Looking Glass 100K, hour by hour on the courseFrequently asked questions
How many checkpoints?
Looking Glass 100K has 10 checkpoints: 9 aid stations and 1 water point. Details are in the two tables above.
What's the longest segment without aid?
The one leading to Fish Hatchery Aid (1): 15.3 km and 424 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?
Looking Glass 100K is 98 km long with 3190 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 13h08 for Looking Glass 100K.
What's the weather forecast?
The weather for Looking Glass 100K 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 Looking Glass 100K?
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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