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| Name: | Seo, Dong-Soo | 서동수 |
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| Club: | |||
| Residence: | |||
| Year of birth: | 1970 | (Cat. german: M55) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M55) | |
| Nationality: | KOR  |
South Korea | |
| RunnerID: | 2031034 | ||
6 search results (6 Events, 604 km). (More)
| 2025 | 3 Events, 350 km (More) | ||||
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| 24.-25.05.2025 | Jeju-do around 200 km (KOR) | 200km | |||
| 28:33:44 h | Seo, Dong-Soo | Overall: 5 | M: 4 | Cat M50: 2 | |
| 26.04.2025 | Korea 50K (KOR) | 50km | |||
| 8:57:58 h | Seo, Dong-Soo | Overall: 113 | M: 100 | Cat M50: 8 | |
| 08.-09.03.2025 | Busan Beach Ultramarathon 100km (KOR) | 100km | |||
| 10:32:00 h | Seo, Dong-Soo | Overall: 9 | M: 8 | Cat M50: 1 | |
| 2024 | 1 Event, 102 km (More) | ||||
| 07.-08.09.2024 | Suncheon Bay 100 Km Ultramarathon (KOR) | 102km | |||
| 16:59:00 h | Seo, Dong-Soo | Overall: 130 | M: 113 | Cat M50: 8 | |
| 2023 | 1 Event, 50 km (More) | ||||
| 29.04.2023 | Korea 50K (KOR) | 50km | |||
| 9:49:09 h | Seo, Dong-Soo | Overall: 115 | M: 103 | Cat M50: 10 | |
| 2022 | 1 Event, 102 km (More) | ||||
| 03.-04.09.2022 | Suncheon Bay 100 Km Ultramarathon (KOR) | 102km | |||
| 14:23:00 h | Seo, Dong-Soo | Overall: 17 | M: 16 | Cat M50: 2 | |
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 |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2022 | ||
|---|---|---|---|---|---|
| Korea 50K | 2 | 8:57:58 | 9:49:09 | ||
| Suncheon Bay 100 Km Ultramarathon | 2 | 16:59:00 | 14:23:00 |