Köln, Germany · Sunday, January 17, 2027

Fixed Distance 50 mi

G1 Grüngürtel Ultra Köln

71 days away

63 km Distance

not publishedn/a Climbing

3.2 est Grit · Challenging

Calculated from 63 km alone — the organiser has not published an elevation profile. Read 3.2 as a floor, not a verdict.

50.9333° N, 6.9500° E© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 10 hours 9:31 min/km average. Comfortable. Room to walk the climbs and stop at aid. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. Tighter than 82% of 50 mi races. Measured against 486 races of the same distance. Cut-off calculator →

Field size ~260 Large. Rarely out of sight of another runner.

DUV results for the 2026 edition (63km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, January

Daytime high 4°C

Night low -1°C

Rainfall Mostly dry

Daylight 8 h 28 m of light

Regional 2001-2025 average for January — NASA POWER, grid elevation 125 m. Not a forecast.

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 63 km of trail.

Trail Running Shoes63 km of trail — cushioning that is still there in the last quarter.
Race Nutrition63 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 63 km, without the bounce.
GPS WatchesBattery life first — a 63 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

Adidas

Terrex Agravic Speed Ultra

RunRepeat found the Adidas Terrex Agravic Speed Ultra to be perfect for midfoot and forefoot strikers, while iRunFar noted that the shoe feels incredibly effici…

★★★★★ 4.5

Spring Energy

Awesome Sauce

Real food gel with 180 calories. Rice-based with natural flavors.

$4 ★★★★★ 4.6

Nathan

VaporKrar 12L

12L race vest co-designed with ultra champion Rob Krar, with insulated bladder pocket.

$170 ★★★★★ 4.6

COROS

APEX 2 Pro

GPS running watch with 75-hour GPS battery, topo maps, and training metrics.

$500 ★★★★★ 4.7

All gear guides →

Course Notes

Lauf auf dem G1 Grüngürtel Wanderweg rund um Köln. Auf befestigten Wegen und nahezu ohne Höhenmeter. Ausgeschildert durch vorhandene Wegmarkierungen und gestelltem Track. Es gibt keine sonstigen Wegweiser.

Similar races

Other 50 mi trail ultras, closest in distance first.