Midstate Massive Ultra Trail 100 Miler 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 15 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 - Midstate Massive Ultra Trail 100 Miler · 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 | AS1: Old Pierce Rd.km 14.8 | AS2: Jewell Hill Rd. @ RT 12km 24.6 | AS3: Wachusett Dentalkm 37.8 | AS4: Wachusett Mountainkm 47.0 | AS5: Old Colony Rd.km 60.5 | AS6: Barre Falls Damkm 73.4 | AS7: Long Pond Boat Rampkm 83.2 | AS8: Camp Marshallkm 94.8 | AS9: Moose Hill Rd.km 102.8 | AS10: Four Chimneyskm 114.3 | AS11 [100M & 50M CREW ONLY]: Fay Mountain Farmskm 119.4 | AS12: Chase Corp.km 131.7 | AS13: Whittier Farmskm 141.0 | AS14: RT 16 @ Webster St/Douglas Rdkm 149.3 | FINAL CHECKPOINT: Water & EMT onlykm 155.3 |
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| Water | available | available | 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 | available | available |
Elevation profile
The course and its aid stations
Other trails worth preparing for
- No Business 100 Official Course (Counterclockwise)161 km · 4,830 m D+ · October 23, 2026
- Marysville to Elmwood162 km · 285 m D+ · October 23, 2026
- Rim to River 100163 km · 3,083 m D+ · October 24, 2026
- Island View 100154 km · 6,966 m D+ · October 24, 2026
- Lake Murray Endurance Run 100miler155 km · 1,629 m D+ · October 24, 2026
- Javelina Jundred161 km · 1,627 m D+ · October 24, 2026
- Pinhoti 100162 km · 3,750 m D+ · October 31, 2026
- Tunnel Hill 100161 km · 355 m D+ · November 7, 2026
- Mountain Masochist 100k101 km · 3,268 m D+ · November 7, 2026
Sources and method
- Time projection — for lack of results on this race, times by UTMB Index rely on a Riegel law whose exponent is adjusted to elevation gain — the model's fallback, not its usual method. Peter Riegel (Wikipedia)
- 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 — Midstate Massive Ultra Trail 100 Miler
Weather for Midstate Massive Ultra Trail 100 Miler
The weather for Midstate Massive Ultra Trail 100 Miler 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 Midstate Massive Ultra Trail 100 Miler, hour by hour on the courseFrequently asked questions
How many checkpoints?
Midstate Massive Ultra Trail 100 Miler has 16 checkpoints: 15 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 AS1: Old Pierce Rd.: 14.8 km and 548 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?
Midstate Massive Ultra Trail 100 Miler is 161 km long with 3457 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 23h08 for Midstate Massive Ultra Trail 100 Miler.
What's the weather forecast?
The weather for Midstate Massive Ultra Trail 100 Miler 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 Midstate Massive Ultra Trail 100 Miler?
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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