Richard Clark
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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.
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 13 eligible race(s): Σ(rank − 1) = 501; Σ finishers = 2 657. 501 / 2 657 × 100 = 18.86%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed13
Km — ultra races783 km
> 100 km1
> 160 km1
Longest race160,9 km
22nd Western States 100 Mile Endurance Run — 24/6/1995
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road10,3%
Trail89,7%
HISTORY
13 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2001 | ||||
| 24.11 | 28mi | 5:46:50 h | 48 | |
| 2000 | ||||
| 25.11 | 28mi | 5:19:41 h | 38 | |
| 1999 | ||||
| 27.11 | 28mi | 5:04:23 h | 24 | |
| 1998 | ||||
| 29.08 | 31.5mi | 5:03:50 h | 14 | |
| 1997 | ||||
| 29.11 | 28mi | 5:06:05 h | 22 | |
| 15.03 | 50km | 4:55:36 h | 75 | |
| 1996 | ||||
| 30.11 | 28mi | 5:05:37 h | 27 | |
| 1995 | ||||
| 25.11 | 28mi | 4:58:41 h | 19 | |
| 24.06 | 100mi | 27:51:47 h | 88 | |
| 01.04 | 50mi | 8:12:26 h | 91 | |
| 1994 | ||||
| 26.11 | 28mi | 5:06:04 h | 27 | |
| 05.02 | 50mi | 8:18:28 h | 11 | |
| 1993 | ||||
| 27.11 | 28mi | 5:06:28 h | 30 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 24/6/1995 | 22nd Western States 100 Mile Endurance Run | 160,93 | ×6 |
| ✓ 2 | 1/4/1995 | 16th American River 50 Mile Endurance Run | 80,47 | ×3 |
| ✓ 3 | 5/2/1994 | 16th Jed Smith Ultra Classic - 50 Mile Race | 80,47 | ×3 |
| ✓ 4 | 29/8/1998 | 1st Tamalpa Headlands 50K | 50,69 | ×2 |
| ✓ 5 | 15/3/1997 | 8th Way Too Cool 50K Endurance Run | 50,00 | ×2 |
| ✓ 6 | 24/11/2001 | 17th Quad Dipsea Trail Run | 45,06 | ×1 |
| ✓ 7 | 25/11/2000 | 16th Quad Dipsea Trail Run | 45,06 | ×1 |
| ✓ 8 | 27/11/1999 | 15th Quad Dipsea Trail Run | 45,06 | ×1 |
| ✓ 9 | 29/11/1997 | 13th Quad Dipsea Trail Run | 45,06 | ×1 |
| ✓ 10 | 30/11/1996 | 12th Quad Dipsea Trail Run | 45,06 | ×1 |
| ✓ 11 | 25/11/1995 | 11th Quad Dipsea Trail Run | 45,06 | ×1 |
| ✓ 12 | 26/11/1994 | 10th Quad Dipsea Trail Run | 45,06 | ×1 |
| ✓ 13 | 27/11/1993 | 9th Quad Dipsea Trail Run | 45,06 | ×1 |