Michael Siethoff
ID 1169939
Born : 1970 Cat. M55 Ultrarunner since 2018 GER
46
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
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
1
Countries visited ?GERGermany
50,4%
Rank quotient ?This runner's calculation uses 48 eligible race(s): Σ(rank − 1) = 2 200; Σ finishers = 4 363. 2 200 / 4 363 × 100 = 50.42%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed48
Km — ultra races3 521 km
> 100 km7
> 160 km1
> 200 km1
> 24h11
> 48h2
Longest race200,5 km
3. Borne To Run 48h Spenden-Lauf — 23/5/2025

Km per year (ultra races)

52
1 race
2022
159
3 races
2023
596
8 races
2024
1 024
14 races
2025
653
9 races
2026

Race types (share of distance)

Road79,5%
Trail16,9%
Elim.3,6%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 33
🏅 Top 3 M4
Longest winning streak0
Current streak0

Records

50 km4h53'30100 km13h41'456 h57,94 km12 h94,06 km24 h148,06 km48 h200,54 kmBackyard11 loops

HISTORY

49 race(s) · 7 split(s) nested
DateRacePerf.Rk
2026
29.08 24h GER8. Bottroper Ultralauf Festival 24h 148.064 km12
08.08 Backyard Ultra GER1. Hannover Backyard Ultra 73.766 km (11h)105
25.07 6h GER7. 6-h-Lauf am Förderturm Bönen 51.081 km26
04.07 8h GER7. Oppas Gartenmarathon - 8 Stunden Gartenlauf 46.690 km3 🥉
27.06 6h GER13. Bergischer 6 Stundenlauf 45.000 km25
12.06 48h GER4. Borne To Run 48h Spenden-Lauf 62.304 km118
23.05 24h GER6. 24h Pfingstlauf Ruhrschleife 122.200 km8
02.05 50km GER3. Flora-Westfalica Ultramarathon 6:06:44 h5
11.04 Backyard Ultra GERLast Rabbit Standing - LRS 53.648 km (8h)91
2025
05.10 47km GERStadtholz Ultra 5:43:52 h3 🥉
05.09 27h GEROppas Gartenmarathon - Ballon-Ultralauf 60.000 km10
30.08 24h GER7. Bottroper Ultralauf Festival 24h 147.050 km16
23.08 12h GER16. Lebacher 12-Stunden Lions Lauf 94.058 km11
16.08 50km GER41. Josef-Kaderhandt Waldlauf 5:15:55 h7
26.07 6h GER6. 6-h-Lauf am Förderturm Bönen 52.173 km29
12.07 50km GER2. Lüner Lippeauen Ultra 5:45:48 h16
05.07 6h GER12. Bergischer 6 Stundenlauf 50.110 km47
07.06 53km GER3. Bessunger Forst XL Marathon 6:17:15 h9
23.05 48h GER3. Borne To Run 48h Spenden-Lauf 200.540 km26
06.04 6h GER7. 6-Stunden-Lauf der SKV Mörfelden 56.723 km36
16.03 63.3km GER51. Königsforst-Marathon 6:52:17 h88
22.02 50km GER4. HaWei50 - 50 km Ultralauf rund um den Hardtsee - offener Lauf 4:53:30 h307
25.01 50km GER25. 50km-Ultramarathon des RLT Rodgau 4:59:57 h175
2024
10.11 50km GER25. 50 km Herbstwaldlauf - Ultramarathon in Bottrop 5:09:36 h33
27.10 63.3km GER22. Röntgenlauf 7:17:26 h87
31.08 12h GER15. Lebacher 12-Stunden Lions Lauf 70.400 km14
27.07 12h GER12-h-Lauf am Förderturm Bönen 90.465 km14
20.07 24h GERBottroper Ultralauf Festival 24h (BUF) - offener Lauf 131.984 km44
29.06 12h GERBergischer 12 Stundenlauf 87.000 km12
08.06 6h GER2. Borne to run 6h Spenden-Lauf 52.569 km12
17.03 50km GER4. Werderseelauf - offener Lauf 4:57:19 h123
2023
19.08 46km GER39. Josef-Kaderhandt Waldlauf 4:32:52 h3 🥉
29.07 6h GER4. 6-h-Lauf am Förderturm Bönen 55.064 km14
01.07 6h GER10. Bergischer 6 Stundenlauf 57.936 km20
2022
30.07 6h GER3. 6-h-Lauf am Förderturm Bönen 51.790 km15
2021
14.08 6h GER8. Bergischer 6 Stundenlauf 56.831 km19
24.07 33:20h GER3. Ballon-Ultralauf 96.560 km30
2020
03.10 24h GER24-h-Challenge der DUV 136.880 km30
01.08 33:20h GERBallon Ultralauf – 100 Meilen Sommer Edition 96.560 km37
04.07 6h GER7. Bergischer 6 Stundenlauf 55.753 km34
08.02 100km GER11. Süchtelner-Höhen-Ultra 13:41:45 h5
2019
03.11 50km GER21. 50 km Herbstwaldlauf - Ultramarathon in Bottrop 5:08:49 h143
24.08 24h GER3. Bottroper Ultralauf Festival 24h (BUF), offener Lauf 125.760 km76
24.08 100km GER3. Bottroper Ultralauf Festival 24h - 100km Split 19:07:15 h99
27.07 6h GER2. 6-h-Lauf am Förderturm Bönen 52.887 km10
15.06 12h GER1. Gymper 12-Stunden-Benefizlauf 87.600 km9
31.03 6h GER2. 6-Stunden-Lauf Herne 47.900 km87
2018
04.11 50km GER20. 50 km Herbstwaldlauf - Ultramarathon in Bottrop 5:32:39 h184
01.09 12h GER2. Bottroper Ultralauf Festival 12h 81.443 km20