Japhy Czysz
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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.
32
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 ?
United States
18,8%
Rank quotient ?This runner's calculation uses 13 eligible race(s): Σ(rank − 1) = 168; Σ finishers = 896. 168 / 896 × 100 = 18.75%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed13
Km — ultra races1 224 km
> 100 km4
> 160 km3
> 24h5
> 48h1
Longest race165,0 km
12th 24 Hours of Palmer Lake Fun Run — 27/9/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road26,6%
Trail44,9%
Elim.28,5%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M1
🏅 Top 32
🏅 Top 3 M3
Longest winning streak0
Current streak0
HISTORY
13 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 27.06 | 12h | 81.876 km | 6 | |
| 16.05 | Backyard Ultra | 160.944 km (24h) | 6 | |
| 2025 | ||||
| 27.09 | 24h | 164.957 km | 6 | |
| 22.08 | 12h | 84.490 km | 2 🥈 | |
| 17.05 | Backyard Ultra | 114.002 km (17h) | 10 | |
| 2024 | ||||
| 28.09 | 24h | 160.998 km | 7 | |
| 19.07 | 12h | 83.544 km | 2 🥈 | |
| 18.05 | Backyard Ultra | 73.766 km (11h) | 30 | |
| 2023 | ||||
| 24.09 | 50km | 7:04:53 h | 26 | |
| 2022 | ||||
| 15.07 | 12h | 82.881 km | 10 | |
| 2017 | ||||
| 07.07 | 12h | 66.304 km | 31 | |
| 2015 | ||||
| 28.03 | 50km | 7:36:00 h | 20 | |
| 2014 | ||||
| 12.10 | 50km | 8:21:17 h | 25 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 27/9/2025 | 12th 24 Hours of Palmer Lake Fun Run | 164,96 | ×5 |
| ✓ 2 | 28/9/2024 | 11th 24 Hours of Palmer Lake Fun Run | 161,00 | ×5 |
| ✓ 3 | 16/5/2026 | 7th Sky Pilots Ouray Backyard Ultra | 160,94 | ×5 |
| ✓ 4 | 17/5/2025 | 6th Sky Pilots Ouray Backyard Ultra | 114,00 | ×3 |
| ✓ 5 | 22/8/2025 | 9th Night Crawler 12 Hour Endurance Challenge | 84,49 | ×2 |
| ✓ 6 | 19/7/2024 | 11th Chase the Moon 12 Hour Endurance Run | 83,54 | ×2 |
| ✓ 7 | 15/7/2022 | 9th Chase the Moon 12 Hour Endurance Run | 82,88 | ×2 |
| ✓ 8 | 27/6/2026 | 13th Chase the Moon 12 Hour Endurance Run | 81,88 | ×2 |
| ✓ 9 | 18/5/2024 | 5th Sky Pilots Ouray Backyard Ultra | 73,77 | ×2 |
| ✓ 10 | 7/7/2017 | 4th Chase the Moon 12 Hour Endurance Run | 66,30 | ×2 |
| ✓ 11 | 24/9/2023 | 3rd Sawatch Ascent 50km Race | 50,00 | ×1 |
| ✓ 12 | 28/3/2015 | 2nd HARRC's Tuscarora 50K Trails Ultra | 50,00 | ×1 |
| ✓ 13 | 12/10/2014 | 2nd Green Monster Trail Challenge 50K | 50,00 | ×1 |