James Briscoe
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Born : 1959
Cat. M65 Ultrarunner since 2015
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
1
Countries visited ?United States
United States80,9%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 773; Σ finishers = 955. 773 / 955 × 100 = 80.94%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 020 km
> 100 km1
> 160 km1
Longest race160,9 km
19th Potawatomi 100 Mile Trail Run — 4/4/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
HISTORY
15 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2023 | ||||
| 15.04 | 30mi | 23nd Potawatomi 30 Mile Trail Run |
9:42:00 h | 26 |
| 2022 | ||||
| 11.06 | 100km | 27th Kettle Moraine 100 km Endurance Run |
21:33:58 h | 77 |
| 2021 | ||||
| 02.10 | 50km | 8th Badwater Cape Fear 50 km |
8:20:00 h | 42 |
| 08.04 | 50mi | 21st Potawatomi 50 Mile Trail Run |
33:45:00 h | 90 |
| 2019 | ||||
| 04.08 | 50km | 3rd Wedel Farm 50 km |
7:10:16 h | 19 |
| 04.04 | 100mi | 19th Potawatomi 100 Mile Trail Run |
2d 01:57:46 h | 27 |
| 09.02 | 50km | 1st Grandmaster Ultras 50 km Run |
7:27:19 h | 8 |
| 2018 | ||||
| 20.10 | 100km | 1st Mines of Spain 100 km Race |
19:18:21 h | 56 |
| 07.07 | 50km | 4th Cry Me A River 50 km Trail Run |
10:56:18 h | 39 |
| 2017 | ||||
| 30.09 | 50km | 2nd Driftless 50k Trail Race |
8:55:46 h | 16 |
| 18.08 | 50km | 9th Marquette Trail 50 km |
9:51:00 h | 126 |
| 06.04 | 50mi | 17th Potawatomi 50 Mile Trail Run |
32:26:47 h | 49 |
| 2016 | ||||
| 11.09 | 50km | 13th Rock Cut Hobo 50K |
7:00:45 h | 39 |
| 2015 | ||||
| 13.09 | 50km | 12th Rock Cut Hobo 50K |
6:53:44 h | 36 |
| 11.07 | 50km | 12th Dances with Dirt - Devil's Lake 50K Ultra |
7:53:17 h | 138 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 4/4/2019 | 19th Potawatomi 100 Mile Trail Run | 160,93 | ×6 |
| ✓ 2 | 11/6/2022 | 27th Kettle Moraine 100 km Endurance Run | 100,00 | ×3 |
| ✓ 3 | 20/10/2018 | 1st Mines of Spain 100 km Race | 100,00 | ×3 |
| ✓ 4 | 8/4/2021 | 21st Potawatomi 50 Mile Trail Run | 80,47 | ×3 |
| ✓ 5 | 6/4/2017 | 17th Potawatomi 50 Mile Trail Run | 80,47 | ×3 |
| ✓ 6 | 2/10/2021 | 8th Badwater Cape Fear 50 km | 50,00 | ×1 |
| ✓ 7 | 4/8/2019 | 3rd Wedel Farm 50 km | 50,00 | ×1 |
| ✓ 8 | 9/2/2019 | 1st Grandmaster Ultras 50 km Run | 50,00 | ×1 |
| ✓ 9 | 7/7/2018 | 4th Cry Me A River 50 km Trail Run | 50,00 | ×1 |
| ✓ 10 | 30/9/2017 | 2nd Driftless 50k Trail Race | 50,00 | ×1 |
| ✓ 11 | 18/8/2017 | 9th Marquette Trail 50 km | 50,00 | ×1 |
| ✓ 12 | 11/9/2016 | 13th Rock Cut Hobo 50K | 50,00 | ×1 |
| ✓ 13 | 13/9/2015 | 12th Rock Cut Hobo 50K | 50,00 | ×1 |
| ✓ 14 | 11/7/2015 | 12th Dances with Dirt - Devil's Lake 50K Ultra | 50,00 | ×1 |
| ✓ 15 | 15/4/2023 | 23nd Potawatomi 30 Mile Trail Run | 48,28 | ×1 |