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| Name: | Siethoff, Michael |
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| Club: | LT Bittermark Dortmund | ||
| Residence: | Iserlohn | ||
| Year of birth: | 1970 | (Cat. german: M55) | |
| Date of birth: | 02.07.1970 | (Cat. internat.: M55) | |
| Nationality: | GER  |
Germany | |
| RunnerID: | 1169939 | ||
45 search results (38 Events, 2818.636 km). (More)
| 2025 | 13 Events, 973.954 km (More) | ||||
|---|---|---|---|---|---|
| 05.10.2025 | Stadtholz Ultra (GER) | 47km | |||
| 5:43:52 h | Siethoff, Michael | LT Bittermark Dortmund | Overall: 3 | M: 3 | Cat M55: 1 |
| 05.09.2025 | Oppas Gartenmarathon - Ballon-Ultralauf (GER) | 27h | |||
| 60.000 km | Siethoff, Michael | LT Bittermark Dortmund | Overall: 10 | M: 6 | Cat M55: 3 |
| 30.-31.08.2025 | Bottroper Ultralauf Festival 24h (BUF) - 100km Split (GER) | 100km | |||
| 14:55:22 h | Siethoff, Michael | LT Bittermark Dortmund | Overall: 28 | M: 19 | Cat M55: 3 |
| 30.-31.08.2025 | Bottroper Ultralauf Festival 24h (BUF) (GER) | 24h | |||
| 147.050 km | Siethoff, Michael | LT Bittermark Dortmund | Overall: 16 | M: 9 | Cat M55: 2 |
| 23.08.2025 | Lebacher 12-Stunden Lions Lauf (GER) | 12h | |||
| 94.058 km | Siethoff, Michael | LT Bittermark Dortmund | Overall: 11 | M: 8 | Cat M55: 2 |
| 16.08.2025 | Josef-Kaderhandt Waldlauf (GER) | 50km | |||
| 5:15:55 h | Siethoff, Michael | LT Bittermark Dortmund | Overall: 7 | M: 6 | Cat M55: 1 |
| 26.07.2025 | 6-h-Lauf am Förderturm Bönen (GER) | 6h | |||
| 52.173 km | Siethoff, Michael | LT Bittermark | Overall: 29 | M: 22 | Cat M55: 4 |
| 05.07.2025 | Bergischer 6 Stundenlauf (GER) | 6h | |||
| 50.110 km | Siethoff, Michael | LT Bittermark Dortmunbd | Overall: 47 | M: 36 | Cat M55: 7 |
| 07.06.2025 | Bessunger Forst XL Marathon (GER) | 53km | |||
| 6:17:15 h | Siethoff, Michael | LT Bittermark Dortmund | Overall: 9 | M: 8 | Cat M55: 4 |
| 23.-25.05.2025 | Borne To Run 48h Spenden-Lauf (GER) | 48h | |||
| 200.540 km | Siethoff, Michael | LT Bittermark Dortmund | Overall: 26 | M: 21 | Cat M55: 4 |
| 06.04.2025 | 6-Stunden-Lauf der SKV Mörfelden (GER) | 6h | |||
| 56.723 km | Siethoff, Michael | LT Bittermark Dortmund | Overall: 36 | M: 27 | Cat M55: 6 |
| 16.03.2025 | Königsforst-Marathon - 50km Split (GER) | 50km | |||
| 5:15:38 h | Siethoff, Michael | LT Bittermark Dortmund | Overall: 87 | M: 75 | Cat M55: 6 |
| 16.03.2025 | Königsforst-Marathon (GER) | 63.3km | |||
| 6:51:35 h | Siethoff, Michael | LT Bittermark Dortmund | Overall: 88 | M: 75 | Cat M55: 8 |
| 22.02.2025 | HaWei50 - 50 km Ultralauf rund um den Hardtsee - offener Lauf (GER) | 50km | |||
| 4:52:42 h | Siethoff, Michael | LT Bittermark Dortmund | Overall: 307 | M: 243 | Cat M55: 32 |
| 25.01.2025 | 50km-Ultramarathon des RLT Rodgau (GER) | 50km | |||
| 4:59:00 h | Siethoff, Michael | LT Bittermark Dortmund | Overall: 175 | M: 149 | Cat M55: 24 |
| 2024 | 8 Events, 595.718 km (More) | ||||
| 10.11.2024 | 50 km Herbstwaldlauf - Ultramarathon in Bottrop (GER) | 50km | |||
| 5:09:36 h | Siethoff, Michael | LT Bittermark Dortmund | Overall: 33 | M: 30 | Cat M50: 3 |
| 27.10.2024 | Röntgenlauf (GER) | 63.3km | |||
| 7:17:26 h | Siethoff, Michael | LT Bittermark Dortmund | Overall: 87 | M: 80 | Cat M50: 11 |
| 31.08.2024 | Lebacher 12-Stunden Lions Lauf (GER) | 12h | |||
| 70.400 km | Siethoff, Michael | LT Bittermark Dortmund | Overall: 14 | M: 9 | Cat M50: 3 |
| 27.07.2024 | 12-h-Lauf am Förderturm Bönen (GER) | 12h | |||
| 90.465 km | Siethoff, Michael | LT Bittermark | Overall: 14 | M: 11 | Cat M50: 1 |
| 20.-21.07.2024 | Bottroper Ultralauf Festival 24h (BUF) - 100km Split (GER) | 100km | |||
| 17:24:16 h | Siethoff, Michael | LT Bittermark Dortmund | Overall: 57 | M: 36 | Cat M50: 8 |
| 20.-21.07.2024 | Bottroper Ultralauf Festival 24h (BUF) - offener Lauf (GER) | 24h | |||
| 131.984 km | Siethoff, Michael | LT Bittermark Dortmund | Overall: 44 | M: 27 | Cat M50: 5 |
| 29.06.2024 | Bergischer 12 Stundenlauf (GER) | 12h | |||
| 87.000 km | Siethoff, Michael | LT Bittermark Dortmund | Overall: 12 | M: 11 | Cat M50: 2 |
| 08.06.2024 | Borne to run 6h Spenden-Lauf (GER) | 6h | |||
| 52.569 km | Siethoff, Michael | Overall: 12 | M: 6 | Cat M50: 4 | |
| 17.03.2024 | Werderseelauf - offener Lauf (GER) | 50km | |||
| 4:56:49 h | Siethoff, Michael | *Iserlohn | Overall: 123 | M: 87 | Cat M50: 23 |
| 2023 | 3 Events, 159 km (More) | ||||
| 19.08.2023 | Josef-Kaderhandt Waldlauf (GER) | 46km | |||
| 4:32:52 h | Siethoff, Michael | LT Bittermark Dortmund | Overall: 3 | M: 3 | Cat M50: 1 |
| 29.07.2023 | 6-h-Lauf am Förderturm Bönen (GER) | 6h | |||
| 55.064 km | Siethoff, Michael | LT Bittermark | Overall: 14 | M: 11 | Cat M50: 2 |
| 01.07.2023 | Bergischer 6 Stundenlauf (GER) | 6h | |||
| 57.936 km | Siethoff, Michael | LT Bittermark Dortmund | Overall: 20 | M: 17 | Cat M50: 2 |
| 2022 | 1 Event, 51.79 km (More) | ||||
| 30.07.2022 | 6-h-Lauf am Förderturm Bönen (GER) | 6h | |||
| 51.790 km | Siethoff, Michael | LT Bittermark | Overall: 15 | M: 11 | Cat M50: 4 |
| 2021 | 2 Events, 153.391 km (More) | ||||
| 14.08.2021 | Bergischer 6 Stundenlauf (GER) | 6h | |||
| 56.831 km | Siethoff, Michael | LT Bittermark Dortmund | Overall: 19 | M: 15 | Cat M50: 3 |
| 24.-26.07.2021 | Ballon-Ultralauf (GER) | 33:20h | |||
| 96.560 km | Siethoff, Michael | TuS Karlsknall | Overall: 33 | M: 21 | Cat M50: 6 |
| 2020 | 4 Events, 389.193 km (More) | ||||
| 03.10.2020 | 24-h-Challenge der DUV - 24h-Lauf - 100km Split (GER) | 100km | |||
| 17:55:04 h | Siethoff, Michael | TuS Karlsknall | Overall: 48 | M: 34 | Cat M50: 7 |
| 03.10.2020 | 24-h-Challenge der DUV (GER) | 24h | |||
| 136.880 km | Siethoff, Michael | TuS Karlsknall | Overall: 30 | M: 20 | Cat M50: 4 |
| 01.-02.08.2020 | Ballon Ultralauf – 100 Meilen Sommer Edition (GER) | 33:20h | |||
| 96.560 km | Siethoff, Michael | TuS Karlsknall | Overall: 37 | M: 26 | Cat M50: 6 |
| 04.07.2020 | Bergischer 6 Stundenlauf (GER) | 6h | |||
| 55.753 km | Siethoff, Michael | TuS Karlsknall | Overall: 34 | M: 31 | Cat M50: 6 |
| 08.02.2020 | Süchtelner-Höhen-Ultra (GER) | 100km | |||
| 13:41:45 h | Siethoff, Michael | TuS Karlsknall | Overall: 5 | M: 3 | Cat M50: 1 |
| 2019 | 5 Events, 364.147 km (More) | ||||
| 03.11.2019 | 50 km Herbstwaldlauf - Ultramarathon in Bottrop (GER) | 50km | |||
| 5:08:26 h | Siethoff, Michael | TuS Karlsknall | Overall: 143 | M: 120 | Cat M45: 25 |
| 24.-25.08.2019 | Bottroper Ultralauf Festival 24h (BUF), offener Lauf (GER) | 24h | |||
| 125.760 km | Siethoff, Michael | TuS Karlsknall | Overall: 76 | M: 55 | Cat M45: 9 |
| 24.08.2019 | Bottroper Ultralauf Festival 24h - 100km Split (GER) | 100km | |||
| 19:07:15 h | Siethoff, Michael | TuS Karlsknall | Overall: 99 | M: 70 | Cat M45: 13 |
| 27.07.2019 | 6-h-Lauf am Förderturm Bönen (GER) | 6h | |||
| 52.887 km | Siethoff, Michael | TuS Karlsknall | Overall: 10 | M: 9 | Cat M45: 1 |
| 15.06.2019 | Gymper 12-Stunden-Benefizlauf, 6h-Split (GER) | 6h | |||
| 48.800 km | Siethoff, Michael | TuS Karlsknall | Overall: 19 | M: 16 | Cat M45: 5 |
| 15.06.2019 | Gymper 12-Stunden-Benefizlauf (GER) | 12h | |||
| 87.600 km | Siethoff, Michael | TuS Karlsknall | Overall: 9 | M: 7 | Cat M45: 4 |
| 15.06.2019 | Gymper 12-Stunden-Benefizlauf - 50km Split (GER) | 50km | |||
| 6:12:05 h | Siethoff, Michael | TuS Karlsknall | Overall: 19 | M: 16 | Cat M45: 5 |
| 31.03.2019 | 6-Stunden-Lauf Herne (GER) | 6h | |||
| 47.900 km | Siethoff, Michael | TuS Karlsknall | Overall: 87 | M: 68 | Cat M45: 9 |
| 2018 | 2 Events, 131.443 km (More) | ||||
| 04.11.2018 | 50 km Herbstwaldlauf - Ultramarathon in Bottrop (GER) | 50km | |||
| 5:32:39 h | Siethoff, Michael | TuS Karlsknall | Overall: 184 | M: 151 | Cat M45: 26 |
| 01.09.2018 | Bottroper Ultralauf Festival 12h (GER) | 12h | |||
| 81.443 km | Siethoff, Michael | TuS Karlsknall | Overall: 20 | M: 16 | Cat M45: 3 |
Personal bests
Your list of personal best performances only contains performances of races which can be included into rankings.
In brackets rank in yearly international/national rankings.
| PB | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
| 50km | 4:52:42 |
4:52:42
(5455/522) |
4:56:49
(5886/439) |
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5:08:26
(8218/706) |
5:32:39
(9479/1104) |
| 100km | 14:55:22 |
14:55:22
(8440/223) |
17:24:16
(9364/216) |
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17:55:04
(1660/105) |
19:07:15
(11812/516) |
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| 6h | 56.723 |
56.723
(1331/180) |
52.569
(2051/191) |
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48.800
(3278/586) |
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| 12h | 94.058 |
94.058
(1134/30) |
70.400
(2055/43) |
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87.600
(1429/61) |
81.443
(1587/56) |
| 24h | 147.050 |
147.050
(1547/84) |
131.984
(1819/72) |
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136.880
(850/25) |
125.760
(2022/156) |
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| 48h | 200.540 |
200.540
(385/32) |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | ||
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| 6-h-Lauf am Förderturm Bönen | 4 | 52.173 | 55.064 | 51.790 | 52.887 | ||||
| Bergischer 6 Stundenlauf | 4 | 50.110 | 57.936 | 56.831 | 55.753 | ||||
| Bottroper Ultralauf Festival 24h (BUF), offener Lauf | 3 | 147.050 | 131.984 | 125.760 | |||||
| 50 km Herbstwaldlauf - Ultramarathon in Bottrop | 3 | 5:09:36 | 5:08:26 | 5:32:39 | |||||
| Ballon Ultralauf – 100 Meilen Sommer Edition | 2 | 96.560 | 96.560 | ||||||
| Lebacher 12-Stunden Lions Lauf | 2 | 94.058 | 70.400 |