Växjö, Sweden · Friday, December 4, 2026

Fixed Distance 100K

Personliga Rekordens Tävling - PRT 100K

43 days away

100 km Distance

not publishedn/a Climbing

5.0 est Grit · Challenging

Calculated from 100 km alone — the organiser has not published an elevation profile. Read 5.0 as a floor, not a verdict.

56.8777° N, 14.8091° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 12 hours 7:12 min/km average. Tight. Sustained running. Long aid-station stops will cost you. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. Among the tightest 100K cut-offs we track. Measured against 227 races of the same distance. Cut-off calculator →

Field size ~8 Tiny. You will run alone for most of it.

DUV results for the 2025 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, December

Daytime high 1°C

Night low -3°C

Rainfall Mostly dry

Daylight 7 h 08 m of light

Regional 2001-2025 average for December — NASA POWER, grid elevation 202 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	100km	8	Conny Svahn · 07:40:49	Matilda Gend · 08:35:35
2024	100km	7	Conny Svahn · 07:46:56	Elin Hartelius · 08:38:22
2023	100km	8	Johan Ahlberg · 07:53:43	Beatrice Taavo · 08:03:40
2022	100km	9	Niklas Henningsson · 07:17:04	Matilda Gend · 08:22:35
2021	100km	18	Ivan Penalba Lopez · 07:11:23	Nikita Sally Linnea Steiner · 08:07:34

The field grew 14% between 2024 (7) and 2025 (8). 38% of the 2025 field were women.

DUV results for the 2025 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Course notes

gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.
nutrition For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.

Gear for this race

Chosen for 100 km of trail.

Trail Running Shoes 100 km of trail — cushioning that is still there in the last quarter.
Race Nutrition Past 100 km the palate quits before the legs do — carry more than one flavour.
Hydration Vests Flask capacity for 100 km, without the bounce.
Headlamps A 12 h limit puts you out there after dark.
Accessories Chafe and blisters end more 100 km races than fitness does.

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

Trabuco Max 3

★★★★★ 4.6

Spring Energy

Awesome Sauce

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

$4 ★★★★★ 4.6

Salomon

ADV Skin 12

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

$180 ★★★★★ 4.8

Nitecore

UT32

Dual-beam trail running headlamp (1100 lumens) with spot and flood beams.

$100 ★★★★★ 4.5

Squirrel's Nut Butter

Anti-Chafe Balm

All-natural anti-chafe balm. Essential for 100+ mile races.

$12 ★★★★★ 4.8

All gear guides →

Overview

The Personliga Rekordens Tävling - PRT 100K is an indoor 100k race in Växjö, Sweden, organised by Växjö Löparklubb. It will next take place on December 4, 2026. The race has been held 5 times, with the first edition in 2021 and the most recent in 2025, which had 8 finishers.

With a 12-hour time limit, this race has a cut-off tighter than 92% of 100k cut-offs, allowing for a maximum pace of 7.2 minutes per kilometer. It is more generous than 8% of comparable races. The field size is smaller than 85% of 100k fields, and bigger than 12%.

Similar races

Other 100K trail ultras, closest in distance first.