Richard Izdebski
External sources
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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.
27
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
3
Countries visited ?
Canada
United Kingdom
United States
70,5%
Rank quotient ?This runner's calculation uses 13 eligible race(s): Σ(rank − 1) = 1 441; Σ finishers = 2 043. 1 441 / 2 043 × 100 = 70.53%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed13
Km — ultra races1 012 km
> 100 km3
> 24h4
Longest race128,7 km
Hardwolds 80 — 26/11/2022
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail68,9%
Elim.31,1%
HISTORY
13 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 15.11 | Backyard Ultra | 107.296 km (16h) | 32 | |
| 13.09 | Backyard Ultra | 100.590 km (15h) | 60 | |
| 12.07 | Backyard Ultra | 46.942 km (7h) | 89 | |
| 2024 | ||||
| 21.09 | Backyard Ultra | 60.354 km (9h) | 93 | |
| 2023 | ||||
| 07.10 | 50mi | 13:27:13 h | 98 | |
| 2022 | ||||
| 26.11 | 80mi | 22:53:46 h | 62 | |
| 2021 | ||||
| 09.10 | 50mi | 12:37:37 h | 67 | |
| 2020 | ||||
| 19.09 | 62mi | 16:00:37 h | 140 | |
| 2016 | ||||
| 25.06 | 50mi | 12:23:00 h | 17 | |
| 2015 | ||||
| 22.08 | 50mi | 14:33:33 h | 135 | |
| 2014 | ||||
| 12.07 | 30mi | 9:49:51 h | 190 | |
| 15.03 | 50km | 6:49:10 h | 264 | |
| 2013 | ||||
| 13.07 | 30mi | 8:50:36 h | 207 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 26/11/2022 | Hardwolds 80 | 128,75 | ×4 |
| ✓ 2 | 15/11/2025 | 8th God’s Own Backyard Ultra Fall | 107,30 | ×3 |
| ✓ 3 | 13/9/2025 | 5th Rasselbock Backyard Ultra - Hardwick Hall | 100,59 | ×3 |
| ✓ 4 | 19/9/2020 | 10th Hardmoors 60 | 99,78 | ×3 |
| ✓ 5 | 7/10/2023 | 40th Rowbotham's Round Rotherham | 80,47 | ×2 |
| ✓ 6 | 9/10/2021 | 38th Rowbotham's Round Rotherham | 80,47 | ×2 |
| ✓ 7 | 25/6/2016 | 7th Tenderfoot Boogie 50 Mile Ultra Trail Race | 80,47 | ×2 |
| ✓ 8 | 22/8/2015 | 4th Squamish 50mi | 80,47 | ×2 |
| ✓ 9 | 21/9/2024 | 3rd Rasselbock Backyard Ultra - Hardwick Hall | 60,35 | ×2 |
| ✓ 10 | 15/3/2014 | 22nd Chuckanut 50K | 50,00 | ×1 |
| ✓ 11 | 12/7/2014 | 26th Knee Knackering North Shore Trail Run | 48,28 | ×1 |
| ✓ 12 | 13/7/2013 | 25th Knee Knackering North Shore Trail Run | 48,28 | ×1 |
| ✓ 13 | 12/7/2025 | 1st The Sting Backyard Ultra North | 46,94 | ×1 |