Jan Hawryliszyn
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13
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
30
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
3
Countries visited ?
Italy
Poland
Slovenia
78,4%
Rank quotient ?This runner's calculation uses 13 eligible race(s): Σ(rank − 1) = 2 904; Σ finishers = 3 704. 2 904 / 3 704 × 100 = 78.40%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed13
Km — ultra races1 109 km
> 100 km6
Longest race124,0 km
Julian Alps Trail Run by UTMB - Ultra Trail 120K — 19/9/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
13 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 19.09 | 124km | 29:51:25 h | 399 | |
| 2024 | ||||
| 20.09 | 120km | 23:43:08 h | 289 | |
| 20.04 | 110km | 15:17:33 h | 39 | |
| 2023 | ||||
| 07.10 | 104km | 14:54:52 h | 121 | |
| 23.06 | 120km | 28:06:50 h | 1097 | |
| 2022 | ||||
| 10.09 | 55km | 8:57:33 h | 117 | |
| 30.06 | 58.6km | 10:32:21 h | 161 | |
| 24.04 | 80km | 11:51:12 h | 86 | |
| 2021 | ||||
| 11.09 | 55km | 9:36:37 h | 287 | |
| 2020 | ||||
| 05.09 | 71.5km | 15:08:03 h | 128 | |
| 2019 | ||||
| 13.07 | 102km | 18:33:59 h | 77 | |
| 29.06 | 55km | 7:34:02 h | 36 | |
| 2018 | ||||
| 24.06 | 54km | 7:38:48 h | 80 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 19/9/2025 | Julian Alps Trail Run by UTMB - Ultra Trail 120K | 124,00 | ×4 |
| ✓ 2 | 20/9/2024 | Julian Alps Trail Run by UTMB - Ultra Trail 120K | 120,00 | ×4 |
| ✓ 3 | 23/6/2023 | 16^ Lavaredo Ultra Trail by UTMB - 120K | 120,00 | ×4 |
| ✓ 4 | 20/4/2024 | IX. GWINT Ultra Cross 110 km | 110,00 | ×3 |
| ✓ 5 | 7/10/2023 | Bison Ultra-Trail 100 | 104,00 | ×3 |
| ✓ 6 | 13/7/2019 | Ultra Chojnik (UCH) 102 km | 102,00 | ×3 |
| ✓ 7 | 24/4/2022 | Ultra Wysoczyzna - Ryk Jelenia | 80,00 | ×2 |
| ✓ 8 | 5/9/2020 | Ultra Chojnik (UCH) 71 km | 71,50 | ×2 |
| ✓ 9 | 30/6/2022 | 8. Ultramaraton Gorski | 58,60 | ×1 |
| ✓ 10 | 10/9/2022 | Ultra Biegi W Górach Stolowych - 55km | 55,00 | ×1 |
| ✓ 11 | 11/9/2021 | Ultra Biegi W Górach Stolowych - 55km | 55,00 | ×1 |
| ✓ 12 | 29/6/2019 | 6. Ultramaraton Gorski | 55,00 | ×1 |
| ✓ 13 | 24/6/2018 | 5. Ultramaraton Gorski | 54,00 | ×1 |