Mary Kreis
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15
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
26
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
2
Countries visited ?
France
United States
16,2%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 437; Σ finishers = 2 698. 437 / 2 698 × 100 = 16.20%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races967 km
> 24h1
Longest race100,0 km
7th Great Eastern Endurance Run 100 km — 26/9/2009
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road13,5%
Trail78,2%
Elim.8,3%
Wins & podiums (ultra)
🏆 Win0
🏆 Win F4
🏅 Top 31
🏅 Top 3 F9
Longest winning streak0
Current streak0
HISTORY
15 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2024 | ||||
| 07.06 | Backyard Ultra | 80.472 km (12h) | 35 | |
| 2012 | ||||
| 15.12 | 50mi | 9:40:06 h | 49 | |
| 01.12 | 50km | 5:14:45 h | 14 | |
| 17.11 | 50mi | 8:02:45 h | 101 | |
| 2011 | ||||
| 04.12 | 50km | 5:37:26 h | 19 | |
| 04.06 | 50km | 5:39:22 h | 66 | |
| 2010 | ||||
| 10.04 | 50mi | 8:18:33 h | 32 | |
| 20.03 | 50km | 4:04:13 h | 8 | |
| 2009 | ||||
| 26.09 | 100km | 13:22:20 h | 8 | |
| 20.06 | 40mi | 8:46:52 h | 39 | |
| 2007 | ||||
| 22.09 | 50mi | 7:42:57 h | 11 | |
| 15.06 | 50km | 5:51:53 h | 6 | |
| 2006 | ||||
| 23.08 | 50km | 5:04:23 h | 3 🥉 | |
| 06.05 | 50km | 5:17:15 h | 27 | |
| 25.03 | 50km | 6:47:47 h | 34 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 26/9/2009 | 7th Great Eastern Endurance Run 100 km | 100,00 | ×3 |
| ✓ 2 | 7/6/2024 | 2nd One More Loop Backyard Ultra Douai | 80,47 | ×3 |
| ✓ 3 | 15/12/2012 | 5th Lookout Mountain 50 Mile Race | 80,47 | ×3 |
| ✓ 4 | 17/11/2012 | 50th JFK 50 Mile | 80,47 | ×3 |
| ✓ 5 | 10/4/2010 | 18th Bull Run Run 50 Miler | 80,47 | ×3 |
| ✓ 6 | 22/9/2007 | 8th Tussey Mountainback 50 Miler | 80,47 | ×3 |
| ✓ 7 | 20/6/2009 | 7th Highlands Sky 40M Trail Run | 64,37 | ×2 |
| ✓ 8 | 1/12/2012 | 3rd Bigfoot 50K Trail Race | 50,00 | ×1 |
| ✓ 9 | 4/12/2011 | 2nd Bigfoot 50K Trail Race | 50,00 | ×1 |
| ✓ 10 | 4/6/2011 | 4th Endurance Challenge - Washington D.C. Trail 50 km | 50,00 | ×1 |
| ✓ 11 | 20/3/2010 | 3rd Lt. JC Stone 50K UltraMarathon | 50,00 | ×1 |
| ✓ 12 | 15/6/2007 | 28th Laurel Highlands 50 km Ultra | 50,00 | ×1 |
| ✓ 13 | 23/8/2006 | 12th Germantown 50k | 50,00 | ×1 |
| ✓ 14 | 6/5/2006 | 8th Capon Valley 50K Run | 50,00 | ×1 |
| ✓ 15 | 25/3/2006 | 2nd Bel Monte 50 km Endurance Run | 50,00 | ×1 |