Milton, MA, United States · Sunday, April 18, 2027

Fixed Distance 50 mi

TARC Dont Run Boston (DRB) 50 Miles

200 days away

80 km Distance

1,900 m Climbing

6.9 Grit · Hardcore

42.2495° N, 71.0662° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 24 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Field size ~9 Tiny. You will run alone for most of it.

DUV results for the 2025 edition (50mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, April

Daytime high 13°C

Night low 3°C

Rainfall Showers likely

Daylight 13 h 27 m of light

Regional 2001-2020 average for April — NASA POWER, grid elevation 63 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	50mi	9	Tilman Dette · 09:46:00	Laura Ricci · 10:46:00
2024	50mi	9	Jacob Varekamp · 10:14:00	Denise Klatt · 11:54:00
2023	50mi	4	Eli Converse · 10:10:00	Lisa Rising · 13:14:00
2022	50mi	5	Jacob Varekamp · 09:54:00	Carolyn Harper · 11:25:00
2019	50mi	7	Howard (Howie) Breinan · 10:31:00	Carolyn Harper · 10:31:00
2018	50mi	2	Howard (Howie) Breinan · 10:23:00	Carolyn Harper · 10:47:00
2017	50mi	6	Howard (Howie) Breinan · 10:51:00	Elyse Deroo · 09:52:00
2016	50mi	1	Christopher Martin · 11:24:00	—
2015	50mi	5	Ben Eysenbach · 09:05:00	—
2014	50mi	4	Ben Eysenbach · 10:57:00	Marcy Beard · 15:17:00

The field has held steady: 9 in 2024, 9 in 2025. 11% of the 2025 field were women.

DUV results for the 2025 edition (50mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a rolling course. Expect fast, runnable sections where rhythm is key.

By UltraHub Expert

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 80 km of trail with 1,900 m of ascent.

Trail Running Shoes 24 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition 80 km of self-supported fuelling between aid stations.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 1,900 m of ascent to walk up.
Headlamps 80 km almost certainly means running into the night.

Brooks

Catamount 3

RunRepeat found the Brooks Catamount 3 to have a cozier upper that enhances the overall fit, though breathability and durability could be better. iRunFar noted…

★★★★★ 4.5

Asics