Mari Jaersk
Born : 1987 Cat. W35 Ultrarunner since 2019 ISL
28
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
54
DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details
6
Countries visited ?DENDenmarkESPSpainESTEstoniaGERGermanyISLIcelandSLOSlovenia
25,2%
Rank quotient ?This runner's calculation uses 28 eligible race(s): Σ(rank − 1) = 1 443; Σ finishers = 5 737. 1 443 / 5 737 × 100 = 25.15%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed28
Km — ultra races3 722 km
> 100 km13
> 160 km10
> 200 km7
> 24h15
> 48h3
Longest race382,2 km
Bakgarður 101 — 4/5/2024

Km per year (ultra races)

632
4 races
2022
910
7 races
2023
907
5 races
2024
537
5 races
2025
2026

Race types (share of distance)

Road2,7%
Trail22,0%
Elim.75,3%

Wins & podiums (ultra)

🏆 Win3
🏆 Win F9
🏅 Top 38
🏅 Top 3 F16
Longest winning streak2
Current streak0

HISTORY

28 race(s)
DateRacePerf.Rk
2025
19.09 50km SLOJulian Alps Trail Run by UTMB - Sky Trail 50K 7:13:25 h120
09.08 100km ISLRaudavatn Ultra 100km 10:53:19 h3 🥉
26.07 50km ISLPosthlaupid 4:48:12 h2 🥈
12.07 55km ISL29th Laugavegurinn 7:21:51 h409
10.05 Backyard Ultra ISLBakgarður 101 281.652 km (42h)2 🥈
2024
19.10 Backyard Ultra ISL3rd Backyard Ultra World Team Championships - Iceland 335.300 km (50h)5
21.09 Backyard Ultra ISLBakgarður Heiðmörk 46.942 km (7h)169
10.08 Backyard Ultra EST6 Heavy Metal Ultra 87.178 km (13h)43
13.07 55km ISL28th Laugavegurinn 6:19:19 h94
04.05 Backyard Ultra ISLBakgarður 101 382.242 km (57h)1 🏆
2023
16.09 Backyard Ultra ISLBakgarður Heiðmörk 167.650 km (25h)6
12.08 Backyard Ultra EST5 Heavy Metal Ultra 261.534 km (39h)2 🥈
15.07 55km ISL27th Laugavegurinn 6:08:52 h98
08.07 50km ISLDyrfjallahlaup 6:38:33 h7
20.05 Backyard Ultra GER2. The Race of the Champions - Backyard Masters 221.298 km (33h)20
29.04 Backyard Ultra ISLBakgarður 101 53.648 km (8h)54
15.04 Backyard Ultra DEN2nd Kronborg Backyard Ultra 100.590 km (15h)16
2022
15.10 Backyard Ultra ISL2nd Backyard Ultra World Team Championships - Iceland 241.416 km (36h)2 🥈
17.09 Backyard Ultra ISLBakgarður Náttúruhlaupa 46.942 km (7h)129
16.07 55km ISL26th Laugavegurinn 5:52:38 h53
30.04 Backyard Ultra ISLBakgarður 101 288.358 km (43h)1 🏆
2021
18.09 Backyard Ultra ISLBakgarður Náttúruhlaupa 167.650 km (25h)1 🏆
04.06 161km ISL1st Hengill Ultra 100mi 27:24:42 h6
2020
19.09 Backyard Ultra ISLBakgarður Náttúruhlaupa 120.708 km (18h)7
18.07 55km ISL24 Laugavegurinn 6:00:56 h93
06.06 52km ISL8th Hengill Ultra 50km 6:07:25 h10
06.03 128km ESPTransgrancanaria 128 km 20:51:56 h110
2019
07.09 52.8km ISL7th Hengill Ultra 50km 6:20:05 h8