Stephen Shields
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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.
25
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
63,1%
Rank quotient ?This runner's calculation uses 13 eligible race(s): Σ(rank − 1) = 886; Σ finishers = 1 405. 886 / 1 405 × 100 = 63.06%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed13
Km — ultra races780 km
Longest race100,0 km
5th Looking Glass 100 km Trail Race — 15/11/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road6,4%
Trail93,6%
HISTORY
13 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 15.11 | 100km | 15:07:54 h | 61 | |
| 20.09 | 50km | 7:06:13 h | 73 | |
| 2023 | ||||
| 29.04 | 50km | 8:19:45 h | 118 | |
| 2022 | ||||
| 22.10 | 50km | 8:05:44 h | 23 | |
| 22.01 | 49.6km | 8:23:12 h | 292 | |
| 2021 | ||||
| 23.10 | 50km | 7:43:41 h | 39 | |
| 05.06 | 50mi | 11:43:05 h | 67 | |
| 2020 | ||||
| 24.10 | 50km | 7:38:26 h | 31 | |
| 07.03 | 50km | 6:42:10 h | 33 | |
| 2019 | ||||
| 19.10 | 100km | 18:27:34 h | 14 | |
| 02.03 | 50km | 8:26:44 h | 44 | |
| 19.01 | 50km | 7:30:26 h | 83 | |
| 2018 | ||||
| 20.10 | 50km | 8:05:28 h | 21 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 15/11/2025 | 5th Looking Glass 100 km Trail Race | 100,00 | ×4 |
| ✓ 2 | 19/10/2019 | 5th Firewater 100k Trail Race | 100,00 | ×4 |
| ✓ 3 | 5/6/2021 | 4th Dam Yeti 50 Mile Race | 80,47 | ×3 |
| ✓ 4 | 20/9/2025 | 15th Table Rock 50 km Ultra | 50,00 | ×2 |
| ✓ 5 | 29/4/2023 | 1st Troublesome Hollow 50K | 50,00 | ×2 |
| ✓ 6 | 22/10/2022 | 8th Firewater 50k Trail Race | 50,00 | ×2 |
| ✓ 7 | 23/10/2021 | 7th Firewater 50k Trail Race | 50,00 | ×2 |
| ✓ 8 | 24/10/2020 | 6th Firewater 50k Trail Race | 50,00 | ×2 |
| ✓ 9 | 7/3/2020 | 1st Cold Mountain 50km Trail Race | 50,00 | ×2 |
| ✓ 10 | 2/3/2019 | 4th Fontandango 50 km | 50,00 | ×2 |
| ✓ 11 | 19/1/2019 | 9th Tsali Frosty Foot 50k | 50,00 | ×2 |
| ✓ 12 | 20/10/2018 | 4th Firewater 50k Trail Race | 50,00 | ×2 |
| ✓ 13 | 22/1/2022 | 28th Mountain Mist 50k | 49,60 | ×1 |