Ellertshaar, Netherlands · Saturday, April 17, 2027

Fixed Distance 50K

Runforestrun Hart van Drenthe

199 days away
50 km Distance
not publishedn/a Climbing
2.5 est Grit · Entry level

Calculated from 50 km alone — the organiser has not published an elevation profile. Read 2.5 as a floor, not a verdict.

Register with organiserRegister ↗ Add to calendar
52.8965° N, 6.7410° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 9 hours 10:48 min/km average. Generous. Walkable throughout for most of the field. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. Tighter than 71% of 50K races. Measured against 1034 races of the same distance. Cut-off calculator →
Field size ~80 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2026 edition (50km) — 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 14°C
Night low 4°C
Rainfall Mostly dry
Daylight 14 h 02 m of light

Regional 2001-2020 average for April — NASA POWER, grid elevation 5 m. Not a forecast.

Results history

Year Race Finishers Men's winner Women's winner
2026 50km 80 Tobias Blaauw · 03:59:00 Debbie van Schaik · 05:16:30
2025 52km 56 Benny Poppe · 04:07:04 Tessa Brand · 04:55:53
2024 52km 56 Tomas Geerts · 04:13:18 Luca Bessems · 05:41:22
2023 52km 51 Jelte Brontsema · 04:04:57 Lianne van Dijk · 04:19:55
2022 52km 35 Ari Sonnenberg · 04:58:39 Sandra Medendorp · 05:22:25

The field grew 43% between 2025 (56) and 2026 (80). 23% of the 2026 field were women.

DUV results for the 2026 edition (50km) — 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

👟 gear

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

By UltraHub Expert

Gear for this race

Chosen for 50 km of trail.

  • Trail Running Shoes 50 km of trail — cushioning that is still there in the last quarter.
  • Race Nutrition 50 km of self-supported fuelling between aid stations.
  • Hydration Vests Flask capacity for 50 km, without the bounce.
  • GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.

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

La Sportiva

Prodigio Pro

RunRepeat found the La Sportiva Prodigio Pro to have a secure, locked-in fit due to its premium upper, and also praised the shoe's energetic ride, particularly…

$225 ★★★★★ 4.6

Skratch Labs

Sport Hydration Mix

Clean electrolyte drink mix with real fruit flavor. Low sugar.

$20 ★★★★★ 4.5

Salomon

ADV Skin 12

Industry-standard 12L race vest with front flask pockets and minimal bounce.

$180 ★★★★★ 4.8

Garmin

Enduro 3

Ultra-endurance GPS watch with solar charging and 300+ hour battery in GPS mode.

$900 ★★★★★ 4.8
All gear guides →

Overview

The Runforestrun Hart van Drenthe, a 50k trail race organised by adam&events, takes place in Ellertshaar, Netherlands, on April 17, 2027. It has a field larger than 72% of 50k races, drawing from a peer group of 2650 similar events.

Runners have 9 hours to complete the 50-kilometer course, which translates to a 10.8 minutes per kilometer cut-off pace. This time limit is tighter than 60% of its 1011 peer 50k races. The course includes approximately 500 meters of asphalt.

Similar races

Other 50K trail ultras, closest in distance first.