Sharon Sieveking
External sources
Loading FFA
Loading MV
FFA diagnostics
Run “Search / refresh FFA” to see each season, HTTP response, candidate and DUV comparison.
MarathonView diagnostics
Run “Refresh MV” to see login, session validation and parser status.
Cached locally. Empty refreshes never erase the last valid snapshot.
Born : 1969
Cat. W55 Ultrarunner since 2018
12
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
United States68,0%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 971; Σ finishers = 1 428. 971 / 1 428 × 100 = 68.00%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races800 km
> 100 km1
> 160 km1
Longest race160,9 km
2nd Burney Mountain 100 — 19/6/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
HISTORY
12 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 19.06 | 100mi | 2nd Burney Mountain 100 |
38:50:00 h | 38 |
| 16.05 | 50mi | 18th Sun Mountain 50 Mile Trail Races |
14:45:59 h | 71 |
| 12.04 | 40mi | 23rd Peterson Ridge Rumble 40 Mile Trail Run |
8:55:25 h | 49 |
| 2025 | ||||
| 24.05 | 12h | 1st Cline Buttes |
49.567 km | 11 |
| 2022 | ||||
| 12.06 | 50km | 5th Wy’east Wonder 50 km Trail Race |
7:01:35 h | 99 |
| 2021 | ||||
| 10.07 | 40mi | 5th Bigfoot 40 Mile Race |
15:06:07 h | 101 |
| 01.05 | 50mi | 5th Tillamook Burn Trail Run 50 Mile |
12:59:50 h | 125 |
| 26.03 | 50km | 11th Badger Mountain 50 km Challenge |
7:14:32 h | 62 |
| 2020 | ||||
| 25.07 | 50km | 4th Elkhorn Crest 50 |
8:27:03 h | 49 |
| 2019 | ||||
| 13.07 | 50km | 20th Siskiyou Out Back 50 km Trail Run |
7:08:59 h | 121 |
| 09.03 | 50km | 8th Marin Ultra Challenge 50 km Race |
6:37:26 h | 143 |
| 2018 | ||||
| 13.10 | 50km | 5th Oregon Coast 50k |
6:43:52 h | 114 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 19/6/2026 | 2nd Burney Mountain 100 | 160,93 | ×6 |
| ✓ 2 | 16/5/2026 | 18th Sun Mountain 50 Mile Trail Races | 80,47 | ×3 |
| ✓ 3 | 1/5/2021 | 5th Tillamook Burn Trail Run 50 Mile | 80,47 | ×3 |
| ✓ 4 | 12/4/2026 | 23rd Peterson Ridge Rumble 40 Mile Trail Run | 64,37 | ×2 |
| ✓ 5 | 10/7/2021 | 5th Bigfoot 40 Mile Race | 64,37 | ×2 |
| ✓ 6 | 12/6/2022 | 5th Wy’east Wonder 50 km Trail Race | 50,00 | ×2 |
| ✓ 7 | 26/3/2021 | 11th Badger Mountain 50 km Challenge | 50,00 | ×2 |
| ✓ 8 | 25/7/2020 | 4th Elkhorn Crest 50 | 50,00 | ×2 |
| ✓ 9 | 13/7/2019 | 20th Siskiyou Out Back 50 km Trail Run | 50,00 | ×2 |
| ✓ 10 | 9/3/2019 | 8th Marin Ultra Challenge 50 km Race | 50,00 | ×2 |
| ✓ 11 | 13/10/2018 | 5th Oregon Coast 50k | 50,00 | ×2 |
| ✓ 12 | 24/5/2025 | 1st Cline Buttes | 49,57 | ×1 |