John Griffiths
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Born : 1974
Cat. M50 Ultrarunner since 2019
2
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
11
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 Kingdom
United Kingdom54,8%
Rank quotient ?This runner's calculation uses 2 eligible race(s): Σ(rank − 1) = 57; Σ finishers = 104. 57 / 104 × 100 = 54.81%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed2
Km — ultra races135 km
> 24h1
Longest race74,0 km
3rd Winter Spine Sprint — 13/1/2024
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road45,3%
Trail54,7%
Records
HISTORY
2 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2024 | ||||
| 13.01 | 46mi | 3rd Winter Spine Sprint |
13:28:55 h | 32 |
| 2019 | ||||
| 13.07 | 24h | Edinburgh 24 - 24h |
61.430 km | 27 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 13/1/2024 | 3rd Winter Spine Sprint | 74,03 | ×6 |
| ✓ 2 | 13/7/2019 | Edinburgh 24 - 24h | 61,43 | ×5 |