Heather Lutz
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10
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
24
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
18,9%
Rank quotient ?This runner's calculation uses 10 eligible race(s): Σ(rank − 1) = 440; Σ finishers = 2 332. 440 / 2 332 × 100 = 18.87%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed10
Km — ultra races626 km
Longest race100,0 km
29th Miwok 100k Trail Race — 2/5/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Wins & podiums (ultra)
🏆 Win0
🏆 Win F1
🏅 Top 30
🏅 Top 3 F3
Longest winning streak0
Current streak0
HISTORY
10 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 02.05 | 100km | 12:12:01 h | 71 | |
| 21.03 | 50km | 6:25:21 h | 84 | |
| 2025 | ||||
| 22.03 | 50km | 5:10:55 h | 60 | |
| 2024 | ||||
| 21.12 | 50km | 5:31:46 h | 19 | |
| 30.11 | 28mi | 5:38:40 h | 66 | |
| 24.02 | 50km | 5:33:47 h | 45 | |
| 2023 | ||||
| 06.05 | 100km | 11:41:00 h | 45 | |
| 2015 | ||||
| 04.04 | 50mi | 7:47:46 h | 23 | |
| 14.03 | 50km | 5:19:55 h | 31 | |
| 08.02 | 50km | 5:05:49 h | 6 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 2/5/2026 | 29th Miwok 100k Trail Race | 100,00 | ×4 |
| ✓ 2 | 6/5/2023 | 26th Miwok 100k Trail Race | 100,00 | ×4 |
| ✓ 3 | 4/4/2015 | 36th American River 50 Mile Endurance Run | 80,47 | ×3 |
| ✓ 4 | 21/3/2026 | 3rd The Big Alta | 50,00 | ×2 |
| ✓ 5 | 22/3/2025 | 2nd The Big Alta | 50,00 | ×2 |
| ✓ 6 | 21/12/2024 | 12th Woodside Ramble 50K - Winter | 50,00 | ×2 |
| ✓ 7 | 24/2/2024 | 1st The Big Alta | 50,00 | ×2 |
| ✓ 8 | 14/3/2015 | 4th Marin Ultra Challenge 50 km Race | 50,00 | ×2 |
| ✓ 9 | 8/2/2015 | 5th Golden Gate 50 km Winter Trail Run | 50,00 | ×2 |
| ✓ 10 | 30/11/2024 | 39th Quad Dipsea Trail Run | 45,06 | ×1 |