Whites 100 returns to Shelburne, New Hampshire on September 11th for another year of endurance challenge tailored specifically for trail runners aiming to complete the massive WM 100 route. This event offers logistical support through access to five drop bags and transportation services throughout the course, ensuring participants can focus solely on their journey. The setting in Shelburne is a blend of rural tranquility and challenging terrain. On race morning, when temperatures are typically mild with firm trail conditions underfoot, runners will find themselves amidst natural beauty that provides both solace and challenge as they traverse miles through varied landscapes. The trail conditions here mean the ground offers enough stability without being overly hard on feet after long hours of running. Whites 100 is an established event in the local endurance community, drawing participants who are dedicated to testing their limits over a full day or more across rugged terrain. Participants contribute by purchasing a drop bag for $200, which covers transportation and logistical support throughout; this bin fee supports trail maintenance efforts locally unless reclaimed post-event at no cost less than the initial investment in gear provided. The course of Whites 100 winds through trails that are known for their challenging yet rewarding scenery. Participants start along US-2 before delving into a series of rugged paths where drop bags and transportation points serve as crucial rest stops, providing much-needed respite from the rigors of continuous movement over such distances. The terrain varies widely but is generally firm enough to maintain traction without undue wear on shoes or joints. Weather conditions in Shelburne during September often feature moderate UV exposure with a typical index around 5.0 (considered Moderate). This means runners should expect clear skies and comfortable temperatures, though they may need protection from the sun’s rays as part of their preparation. Humidity tends to be low at this time of year, making for generally pleasant running conditions but still requiring adequate hydration.
WM 100 Start: 06:00:00
The WM 100 is the sole offering for participants aiming to take on extensive trail runs over challenging distances with supportive logistics provided by organizers in Shelburne. This event requires registration through [https://ultrasignup.com/register.aspx?did=134617](https://ultrasignup.com/register.aspx?did=134617) where a $200 bin deposit is made to cover drop bags and transportation. The deadline for signing up ensures participants have all necessary preparations in place before the start date. For those picking up their race materials, bib collection occurs at US-2 on September 9th from noon until dusk or alternatively anytime between dawn and sunset on September 10th. All runners must bring a Garmin InReach device to ensure they can utilize drop stations effectively throughout their journey. The starting point for Whites 100 is located along US-2, where participants should gather with all required gear including the aforementioned communication devices as well as personal provisions suitable for multi-day endurance running on trails in Shelburne. There are no age requirements specified beyond general physical capability to handle such an extensive route under challenging conditions. Whites 100 in Shelburne is a testament to local trail enthusiasts who come together each year to push their limits and support ongoing efforts towards maintaining the area’s natural beauty through active participation and financial contributions aimed at preserving these scenic routes.
Races Offered
WM 100
Sep 11, 2026
straighten
Distance —
160.9K
terrain
Type —
Running
timer
06:00
sell
$0.00
Weather History
These values represent the 3-year monthly averages for September in Shelburne.
thermostatTemperature
12.1° / 22.0°
wb_sunnyFeels like
11.1° / 21.2°
light_mode
Avg sunshine hours
9h 44m
water_drop
Avg rainfall
2.6 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
7.2 km/h (Light breeze)
opacity
Sweat loss rate
Moderate
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (5.0)
humidity_mid
Humidity
76.8%
wb_twilight
Sunrise
06:24
nightlight
Sunset
18:53
About Shelburne
Learn more about the host city, Shelburne.
Shelburne is a town in Coös County, New Hampshire, United States. The population was 353 at the 2020 census. It is located in the White Mountains, and part of the White Mountain National Forest is in the south. Shelburne is home to Leadmine State Forest. The Appalachian Trail crosses the town.