Robert Colton
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 : 1940
Cat. M85 Ultrarunner since 1988
10
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
1
Countries visited ?United States
United States38,2%
Rank quotient ?This runner's calculation uses 10 eligible race(s): Σ(rank − 1) = 319; Σ finishers = 835. 319 / 835 × 100 = 38.20%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed10
Km — ultra races893 km
> 100 km2
> 160 km2
Longest race160,9 km
16th Western States 100 Mile Endurance Run — 24/6/1989
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road73,0%
Trail27,0%
HISTORY
10 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 1996 | ||||
| 27.04 | 50km | 18th Sybil Ludington 50 km Run |
4:25:44 h | 11 |
| 1995 | ||||
| 14.10 | 50mi | 4th Maine Track Club Ultra 50 Mile |
7:27:36 h | 5 |
| 1993 | ||||
| 26.09 | 50mi | 22nd Metropolitan 50 Mile Race |
7:27:21 h | 7 |
| 27.02 | 100km | New York Ultimax 100km Race |
9:11:24 h | 33 |
| 1992 | ||||
| 12.12 | 60km | 14th NYRR Knickerbocker 60K |
5:22:47 h | 11 |
| 1990 | ||||
| 17.11 | 50mi | 28th JFK 50 Mile |
9:10:54 h | 104 |
| 1989 | ||||
| 24.06 | 100mi | 16th Western States 100 Mile Endurance Run |
26:40:39 h | 134 |
| 25.03 | 60km | 11th NYRR Knickerbocker 60K |
4:49:15 h | 6 |
| 1988 | ||||
| 10.06 | 100mi | NYRR New York Invitational 100 Mile Run |
16:15:16 h | 4 |
| 05.03 | 60km | 10th NYRR Knickerbocker 60K |
5:03:29 h | 14 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 24/6/1989 | 16th Western States 100 Mile Endurance Run | 160,93 | ×6 |
| ✓ 2 | 10/6/1988 | NYRR New York Invitational 100 Mile Run | 160,93 | ×6 |
| ✓ 3 | 27/2/1993 | New York Ultimax 100km Race | 100,00 | ×3 |
| ✓ 4 | 14/10/1995 | 4th Maine Track Club Ultra 50 Mile | 80,47 | ×3 |
| ✓ 5 | 26/9/1993 | 22nd Metropolitan 50 Mile Race | 80,47 | ×3 |
| ✓ 6 | 17/11/1990 | 28th JFK 50 Mile | 80,47 | ×3 |
| ✓ 7 | 12/12/1992 | 14th NYRR Knickerbocker 60K | 60,00 | ×2 |
| ✓ 8 | 25/3/1989 | 11th NYRR Knickerbocker 60K | 60,00 | ×2 |
| ✓ 9 | 5/3/1988 | 10th NYRR Knickerbocker 60K | 60,00 | ×2 |
| ✓ 10 | 27/4/1996 | 18th Sybil Ludington 50 km Run | 50,00 | ×1 |