Michael Erickson
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.
12
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
27
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
71,6%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 616; Σ finishers = 860. 616 / 860 × 100 = 71.63%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races965 km
> 100 km1
> 160 km1
> 200 km1
> 24h1
Longest race331,5 km
11th Bigfoot 200 Endurance Run — 8/8/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road8,6%
Trail83,1%
Elim.8,3%
HISTORY
12 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 08.08 | 206mi | 4d 04:52:40 h | 138 | |
| 2023 | ||||
| 30.09 | 50km | 8:24:36 h | 23 | |
| 21.04 | Backyard Ultra | 80.472 km (12h) | 20 | |
| 2019 | ||||
| 08.06 | 50km | 7:11:01 h | 27 | |
| 2018 | ||||
| 09.06 | 50km | 7:51:20 h | 19 | |
| 2017 | ||||
| 22.07 | 45mi | 14:31:18 h | 81 | |
| 08.04 | 50km | 6:32:07 h | 51 | |
| 2016 | ||||
| 09.04 | 50km | 5:51:35 h | 48 | |
| 2015 | ||||
| 11.04 | 50km | 5:54:30 h | 51 | |
| 2013 | ||||
| 02.03 | 50km | 7:59:56 h | 77 | |
| 2012 | ||||
| 06.07 | 51.5mi | 12:51:40 h | 74 | |
| 24.03 | 6h | 48.119 km | 19 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 8/8/2025 | 11th Bigfoot 200 Endurance Run | 331,52 | ×12 |
| ✓ 2 | 6/7/2012 | 3rd Midnight Madness 50 Miler Road Race | 82,88 | ×3 |
| ✓ 3 | 21/4/2023 | 2nd Banana Slug Backyard Ultra | 80,47 | ×2 |
| ✓ 4 | 22/7/2017 | 1st Bigfoot 45 Mile Race | 72,42 | ×2 |
| ✓ 5 | 30/9/2023 | 10th Elk-King’s 50 km Race | 50,00 | ×1 |
| ✓ 6 | 8/6/2019 | 2nd Fragrance Lake 50km Race | 50,00 | ×1 |
| ✓ 7 | 9/6/2018 | 1st Fragrance Lake 50km Race | 50,00 | ×1 |
| ✓ 8 | 8/4/2017 | 7th Hawkeye 50K Trail Run | 50,00 | ×1 |
| ✓ 9 | 9/4/2016 | 6th Hawkeye 50K Trail Run | 50,00 | ×1 |
| ✓ 10 | 11/4/2015 | 5th Hawkeye 50K Trail Run | 50,00 | ×1 |
| ✓ 11 | 2/3/2013 | 4th Post Oak Lodge 50K Trail Challenge | 50,00 | ×1 |
| ✓ 12 | 24/3/2012 | 5th Taturs Six Hour Snake Run | 48,12 | ×1 |