Marcin Grzybowski
External sources
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12
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
27
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
2
Countries visited ?
France
Poland
43,1%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 666; Σ finishers = 1 545. 666 / 1 545 × 100 = 43.11%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races950 km
> 100 km3
Longest race150,0 km
11. Lemkowyna Ultra Trail 150 — 17/10/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
12 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 17.10 | 150km | 28:25:13 h | 115 | |
| 06.07 | 50km | 4:50:40 h | 19 | |
| 2024 | ||||
| 07.07 | 50km | 5:09:27 h | 25 | |
| 2023 | ||||
| 21.10 | 150km | 27:21:50 h | 96 | |
| 05.08 | 74km | 9:53:52 h | 15 | |
| 09.07 | 50km | 5:17:19 h | 16 | |
| 2022 | ||||
| 13.08 | 89km | 11:32:48 h | 19 | |
| 10.07 | 50km | 5:36:21 h | 35 | |
| 2021 | ||||
| 14.08 | 107.7km | 17:28:52 h | 21 | |
| 11.07 | 48km | 5:48:12 h | 50 | |
| 2020 | ||||
| 15.08 | 68.5km | 9:55:11 h | 116 | |
| 2019 | ||||
| 17.08 | 63km | 9:47:48 h | 151 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 17/10/2025 | 11. Lemkowyna Ultra Trail 150 | 150,00 | ×5 |
| ✓ 2 | 21/10/2023 | 10. Lemkowyna Ultra Trail 150 | 150,00 | ×5 |
| ✓ 3 | 14/8/2021 | Magurski Ultramarathon 105 km | 107,70 | ×3 |
| ✓ 4 | 13/8/2022 | Magurski Ultramarathon 90 km | 89,00 | ×3 |
| ✓ 5 | 5/8/2023 | Magurski Ultramarathon 74 km | 74,00 | ×2 |
| ✓ 6 | 15/8/2020 | Magurski Ultramarathon 65 km | 68,50 | ×2 |
| ✓ 7 | 17/8/2019 | Magurski Ultramarathon 63km | 63,00 | ×2 |
| ✓ 8 | 6/7/2025 | 16ème Trail Des Tordus | 50,00 | ×1 |
| ✓ 9 | 7/7/2024 | 15ème Trail Des Tordus | 50,00 | ×1 |
| ✓ 10 | 9/7/2023 | 14ème Trail Des Tordus | 50,00 | ×1 |
| ✓ 11 | 10/7/2022 | 13ème Trail Des Tordus | 50,00 | ×1 |
| ✓ 12 | 11/7/2021 | 12ème Trail Des Tordus | 48,00 | ×1 |